資料 API

GET/api/v1/papers

List papers

Papers we have read, newest first (by the date they were added, then id), with the relevance judgment, what each is about and, when one is published, our story.

• sincedate
  Only papers added on or after this UTC date (YYYY-MM-DD; a full ISO timestamp is cut to its date).
• untildate
  Only papers added on or before this UTC date (YYYY-MM-DD).
• min_relevancenumber
  Lowest aging-relevance score to include (0 to 3, see judgement.relevance). Without it, the papers the site shows; 1 adds tangential papers; 0 returns every paper read, most of which are not about aging.
• study_typelist
  Main source of evidence. One value or a comma-separated list.One of human_trial, human_observational, animal, invertebrate, cells, computational, review, other
• categorylist
  Category slug from /categories. One value or a comma-separated list. A paper matches when its category or its secondary category is listed.One of mechanisms, interventions, biomarkers, populations, ai-data, industry-policy
• systemlist
  Body system key (see systems). One value or a comma-separated list; a paper matches when it involves any of them. Only papers that have been analyzed have systems.One of eye, ear, heart-vessels, kidney, lung, reproductive, skin, brain-nerves, blood-immune, bone-joints, muscle, metabolism, gut-microbiome, whole-body
• age_linklist
  How the work itself connects to aging (see judgement.age_link). One value or a comma-separated list.One of lifespan_healthspan, aged_comparison, age_trajectory, aging_outcome, age_accumulating_state, aging_lever, prevention, tool_or_field, rejuvenation_tech, population_only, asserted_only, none
• topiclistdeprecated
  Deprecated: filter by category or system, or read a subject's papers from /entities. A slug of one of the ten legacy topics (see /topics), or other. A topic matches the papers filed under it and the papers about the subject whose page replaced its own. One value or a comma-separated list.One of senescence, epigenetic-clocks, mtor-rapamycin, reprogramming, nad-sirtuins, mitochondria, dietary-restriction, glp-1, inflammaging, brain-aging, other
• preprintboolean
  true for preprints only, false for peer-reviewed papers only. Omit for both.
• authorstring
  Papers by an author. A name matches every author who answers to it: the words in any order, with or without accents, an initial standing for any name it begins (sinclair d). An author_id from a paper's authors_full (an OpenAlex author id such as A5022713595, or an ORCID iD) matches that one person.
• qstring
  Full-text filter over title and abstract. Supports "quoted phrases", OR and -exclusions. Results stay in date order; use /search for ranked results.
• cursorstring
  Opaque cursor from pagination.next_cursor of the previous page. Keep the other parameters the same.
• limitinteger
  Results per page, 1 to 100. Default 25.
• compactboolean
  true for each paper's abstract cut to its first 400 characters, at a word, with abstract_truncated saying whether it was: about half the bytes, every field still present. Read a paper in full at /papers/{id}.

Returns data: an array of Paper, with pagination.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/papers?category=interventions&study_type=human_trial,animal&limit=10"

GET/api/v1/papers/{id}

Get one paper

One paper with its judgment, every author with their ORCID iD, OpenAlex id and institutions, our full story when published, reader upvotes, and the entities and claims extracted from it when available. Ask by our id or by the paper's own: a DOI, a PMID, a PMCID, an arXiv id, or a link to it. A DOI's slash may be sent as it is (/papers/10.1038/s41586-026-01234-5) or encoded (%2F).

• idpath · string
  AgingResearch.News paper id (MED-42823970), or the paper's DOI (10.1038/…, doi:10.1038/…, https://doi.org/10.1038/…), PMID (42823970, PMID:42823970), PMCID (PMC1234567), arXiv id (2610.02175), or a link to it on AgingResearch.News, PubMed, PMC, Europe PMC, arXiv, bioRxiv or a publisher's page with its DOI. Required.

Returns data: one PaperDetail.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/papers/MED-42823970"

GET/api/v1/stories

List published stories

Stories we wrote about new papers and published, newest first. Stories are ours to license; each carries its paper.

• sincedate
  Only stories published on or after this UTC date (YYYY-MM-DD).
• untildate
  Only stories published on or before this UTC date (YYYY-MM-DD).
• categorylist
  Category slug from /categories. One value or a comma-separated list. A paper matches when its category or its secondary category is listed.One of mechanisms, interventions, biomarkers, populations, ai-data, industry-policy
• systemlist
  Body system key (see systems). One value or a comma-separated list; a paper matches when it involves any of them. Only papers that have been analyzed have systems.One of eye, ear, heart-vessels, kidney, lung, reproductive, skin, brain-nerves, blood-immune, bone-joints, muscle, metabolism, gut-microbiome, whole-body
• topiclistdeprecated
  Deprecated: filter by category or system, or read a subject's papers from /entities. A slug of one of the ten legacy topics (see /topics), or other. A topic matches the papers filed under it and the papers about the subject whose page replaced its own. One value or a comma-separated list.One of senescence, epigenetic-clocks, mtor-rapamycin, reprogramming, nad-sirtuins, mitochondria, dietary-restriction, glp-1, inflammaging, brain-aging, other
• study_typelist
  Main source of evidence. One value or a comma-separated list.One of human_trial, human_observational, animal, invertebrate, cells, computational, review, other
• cursorstring
  Opaque cursor from pagination.next_cursor of the previous page. Keep the other parameters the same.
• limitinteger
  Results per page, 1 to 100. Default 25.
• compactboolean
  true for each paper's abstract cut to its first 400 characters, at a word, with abstract_truncated saying whether it was: about half the bytes, every field still present. Read a paper in full at /papers/{id}.

Returns data: an array of StoryItem, with pagination.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/stories?category=biomarkers&limit=5"

GET/api/v1/categories

List categories

The six categories every paper the site shows is filed under, by what the work establishes, with paper counts and the subjects each category's page names.

Returns data: an array of Category.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/categories"

GET/api/v1/subjects

List active subjects

The subjects the site names on its cards and category pages: entities with enough recent papers from enough journals, measured each night. Strongest first: recent papers times growth. With category, the subjects of that category's page, in its order.

• categorystring
  Only the subjects of this category's page, by that category's papers.One of mechanisms, interventions, biomarkers, populations, ai-data, industry-policy
• typestring
  Only subjects of this entity type.One of intervention, gene, pathway, component, system, disease, biomarker, method, organism

Returns data: an array of Subject.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/subjects?category=mechanisms"

GET/api/v1/topicsdeprecated

List the legacy topics

Deprecated: use /categories and /subjects. The ten topics the site listed papers by before the categories. Papers are still filed under one. Each topic names the subject whose page replaced its own and counts the papers the topic filter matches.

Returns data: an array of Topic.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/topics"

GET/api/v1/entities

List entities

Canonical things papers are about (interventions, genes, pathways, cell components, body systems, methods, hallmarks, phenotypes, organisms, tissues, diseases, biomarkers, datasets, theories, MeSH headings), most-studied first. Without q, counts and order are refreshed every minute.

• typestring
  Entity type, e.g. intervention, gene, pathway, component, system, method, hallmark, phenotype, organism, tissue, disease, biomarker, mesh.
• qstring
  Match on name, key or a synonym, case-insensitive substring. The most-studied entity whose name, key or synonym is exactly q comes first, then the rest most-studied first, and MeSH headings after them.
• cursorstring
  Opaque cursor from pagination.next_cursor of the previous page. Keep the other parameters the same.
• limitinteger
  Results per page, 1 to 100. Default 25.

Returns data: an array of Entity, with pagination.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/entities?type=intervention&q=rapa"

GET/api/v1/entities/{type}/{key}

Get an entity and its papers

One entity with counts and the papers that involve it, newest first, each with the roles the entity plays in it. For an intervention, a gene or a process, evidence gives what our record shows as structure, never as a grade: the species its findings reach and whether independent labs found the same there, the labs and countries behind them, the findings against, its trials and those with no results posted, its funders and its company ties. A key that names another entity (a synonym such as sirolimus, or a key an entity had before it was merged) answers with that entity under its own key and api_url.

• typepath · string
  Entity type. Required.
• keypath · string
  Entity key within its type, URL-encoded. Required.
• min_relevancenumber
  Lowest aging-relevance score for the papers listed. Default: no filter.
• cursorstring
  Opaque cursor from pagination.next_cursor of the previous page. Keep the other parameters the same.
• limitinteger
  Results per page, 1 to 100. Default 25.

Returns data: one EntityDetail, with pagination.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/entities/intervention/rapamycin"

GET/api/v1/claims

List claims

Findings extracted from papers as subject, relation and object, with organism, context and effect size. Newest first.

• subjectstring
  Subject text, entity name or entity key (case-insensitive substring).
• objectstring
  Object text, entity name or entity key (case-insensitive substring).
• relationstring
  Exact relation, e.g. increases, decreases, associated_with, extends_lifespan.
• organismstring
  Organism, e.g. Homo sapiens, Mus musculus (case-insensitive substring).
• paper_idstring
  Only claims from this paper.
• cursorstring
  Opaque cursor from pagination.next_cursor of the previous page. Keep the other parameters the same.
• limitinteger
  Results per page, 1 to 100. Default 25.

Returns data: an array of ClaimItem, with pagination.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/claims?subject=rapamycin&relation=extends_lifespan"

GET/api/v1/search

Search papers

Full-text search over titles and abstracts, best match first. Accepts the same filters as /papers. Supports "quoted phrases", OR and -exclusions. Words that frame a question (latest, research, what, effects) are left out, and when the terms together find fewer than 3 papers the results match every term but one (relaxed).

• qstring
  Search terms: 2 to 4 key terms work best. Supports "quoted phrases", OR and -exclusions. Required.
• sincedate
  Only papers added on or after this UTC date (YYYY-MM-DD; a full ISO timestamp is cut to its date).
• untildate
  Only papers added on or before this UTC date (YYYY-MM-DD).
• min_relevancenumber
  Lowest aging-relevance score to include (0 to 3, see judgement.relevance). Without it, the papers the site shows; 1 adds tangential papers; 0 returns every paper read, most of which are not about aging.
• study_typelist
  Main source of evidence. One value or a comma-separated list.One of human_trial, human_observational, animal, invertebrate, cells, computational, review, other
• categorylist
  Category slug from /categories. One value or a comma-separated list. A paper matches when its category or its secondary category is listed.One of mechanisms, interventions, biomarkers, populations, ai-data, industry-policy
• systemlist
  Body system key (see systems). One value or a comma-separated list; a paper matches when it involves any of them. Only papers that have been analyzed have systems.One of eye, ear, heart-vessels, kidney, lung, reproductive, skin, brain-nerves, blood-immune, bone-joints, muscle, metabolism, gut-microbiome, whole-body
• age_linklist
  How the work itself connects to aging (see judgement.age_link). One value or a comma-separated list.One of lifespan_healthspan, aged_comparison, age_trajectory, aging_outcome, age_accumulating_state, aging_lever, prevention, tool_or_field, rejuvenation_tech, population_only, asserted_only, none
• topiclistdeprecated
  Deprecated: filter by category or system, or read a subject's papers from /entities. A slug of one of the ten legacy topics (see /topics), or other. A topic matches the papers filed under it and the papers about the subject whose page replaced its own. One value or a comma-separated list.One of senescence, epigenetic-clocks, mtor-rapamycin, reprogramming, nad-sirtuins, mitochondria, dietary-restriction, glp-1, inflammaging, brain-aging, other
• preprintboolean
  true for preprints only, false for peer-reviewed papers only. Omit for both.
• authorstring
  Papers by an author. A name matches every author who answers to it: the words in any order, with or without accents, an initial standing for any name it begins (sinclair d). An author_id from a paper's authors_full (an OpenAlex author id such as A5022713595, or an ORCID iD) matches that one person.
• cursorstring
  Opaque cursor from pagination.next_cursor of the previous page. Keep the other parameters the same.
• limitinteger
  Results per page, 1 to 100. Default 25.
• compactboolean
  true for each paper's abstract cut to its first 400 characters, at a word, with abstract_truncated saying whether it was: about half the bytes, every field still present. Read a paper in full at /papers/{id}.

Returns data: an array of SearchHit, with pagination, query, query_used, relaxed and mode.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/search?q=senolytic%20mice"

GET/api/v1/trials

List clinical trials

Clinical trials from ClinicalTrials.gov, CTIS, ISRCTN and the WHO ICTRP's registries that bear on human aging, as /trials shows them: judged for aging relevance, newest registry update first, each with its latest change. Studies that look like pay-to-participate clinics are never listed.

• qstring
  Words that must all appear in the trial's titles, conditions, interventions, keywords or sponsor (case-insensitive).
• phaselist
  Phase: 1 (early phase 1 and phase 1), 2, 3, 4, or none for studies with no phase. One value or a comma-separated list.One of 1, 2, 3, 4, none
• statuslist
  Recruitment status: recruiting (recruiting, not yet recruiting or by invitation), active (active, not recruiting), completed, or stopped (terminated, withdrawn or suspended). One value or a comma-separated list.One of recruiting, active, completed, stopped
• focuslist
  The trial's main connection to aging (see focus). One value or a comma-separated list.One of intervention, condition, endpoint, biomarker, observational, other
• industryboolean
  true for trials whose lead sponsor is a company, false for the rest. Omit for both.
• sincedate
  Only trials the registry updated on or after this date (YYYY-MM-DD).
• min_relevancenumber
  Lowest aging-relevance score to include (0 to 3, see relevance). Default 1.8, the trials /trials shows.
• cursorstring
  Opaque cursor from pagination.next_cursor of the previous page. Keep the other parameters the same.
• limitinteger
  Results per page, 1 to 100. Default 25.

Returns data: an array of Trial, with pagination.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/trials?status=recruiting&phase=2,3&q=senolytic"

GET/api/v1/trials/{nct_id}

Get one trial

One trial we have read, with its registry detail, every change we recorded and the papers that cite its registry number. A trial judged not about aging keeps only its identity, title and score, so its detail is empty.

• nct_idpath · string
  The trial's registry number, e.g. NCT04488601 or ISRCTN12345678. Required.

Returns data: one TrialDetail.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/trials/NCT04488601"

GET/api/v1/news

List news

News about aging research and the longevity industry from outlets, company and university newsrooms, regulators, funders and filings, as /news shows it: one story per event, newest coverage first, in our own words, with a link to every outlet that covered it and the papers and trials it reports on.

• qstring
  Words that must all appear in the story's headline or summary (case-insensitive).
• kindstring
  Only stories of this kind.One of company, trial_result, regulatory, funding, research_news, policy, conference, other
• sincedate
  Only stories with coverage on or after this UTC date (YYYY-MM-DD).
• cursorstring
  Opaque cursor from pagination.next_cursor of the previous page. Keep the other parameters the same.
• limitinteger
  Results per page, 1 to 100. Default 25.

Returns data: an array of NewsStory, with pagination.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/news?kind=trial_result&limit=10"

GET/api/v1/grants

List research grants

Research grants that bear on human aging, from NIH RePORTER, EU CORDIS, UKRI Gateway to Research and Wellcome (360Giving), judged for aging as papers are: who funds what, who holds it, how much and when, newest award first. Narrow by an entity the grant's title names, a funder, a holder, words of the title or the award date.

• qstring
  Words of the grant's title ("quoted phrases", OR and -exclusions work).
• entitystring
  Only grants whose titles name this entity, as type:key (see /entities), e.g. intervention:rapamycin or disease:sarcopenia.
• funderstring
  Only grants from this funder, by its organization key or name, e.g. nia or wellcome.
• holderstring
  Only grants held by this organization (its key) or investigator (person: and their key), e.g. buck-institute-for-research-on-aging.
• sincedate
  Only grants awarded on or after this date (YYYY-MM-DD).
• untildate
  Only grants awarded on or before this date (YYYY-MM-DD).
• cursorstring
  Opaque cursor from pagination.next_cursor of the previous page. Keep the other parameters the same.
• limitinteger
  Results per page, 1 to 100. Default 25.

Returns data: an array of Grant, with pagination.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/grants?entity=intervention:rapamycin"

GET/api/v1/conferences

List conferences

The conference calendar, as /conferences shows it: the meetings in aging research, age-related disease and the biology and tools around them that are still to come or on, soonest first, then those of the last year and every earlier one we hold abstracts from, latest first. Each edition gives its dates, place, where its abstracts come from and how many we hold.

Returns data: an array of ConferenceEdition.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/conferences"

GET/api/v1/conferences/{id}

Get a conference and its abstracts

One conference with its organizer, its site and every edition, newest first. With edition, that edition's abstracts we hold, the most relevant first, each with its number, format and session when the meeting gives them, and the paper it was later published as.

• idpath · string
  Conference id from /conferences, e.g. gsa. Required.
• editionstring
  An edition from editions, e.g. 2025: list its abstracts.
• min_visibilitystring
  With edition: the lowest visibility band of the abstracts listed (see judgement.visibility). Default visible, the abstracts the site lists.One of out, matchable, searchable, visible, core
• cursorstring
  Opaque cursor from pagination.next_cursor of the previous page. Keep the other parameters the same.
• limitinteger
  Results per page, 1 to 100. Default 25.

Returns data: one Conference, with pagination.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/conferences/gsa?edition=2025&limit=10"

GET/api/v1/assets

List assets

Drug and therapy programs in development: each with its developers and partners, code names, modality, targets, mechanism, indications with the stage of each, and how it bears on aging. Built from clinical trials, each company's registry record, news, papers and reviewed program records; furthest stage first. Fields the source does not state come from our reading of the asset. Keys of Pro and Enterprise accounts read assets; other keys are answered 403 plan_required.

• targetstring
  A target: a gene symbol or key (GLP1R, bcl2l1) or a process key (mtor, cellular-senescence).
• mechanismstring
  Words that must all appear in the asset's mechanism line (case-insensitive).
• modalitystring
  The kind of therapy (see modality).
• hallmarkstring
  A hallmark of aging the asset acts on.One of genomic-instability, telomere-attrition, epigenetic-alterations, loss-of-proteostasis, disabled-macroautophagy, deregulated-nutrient-sensing, mitochondrial-dysfunction, cellular-senescence, stem-cell-exhaustion, altered-intercellular-communication, chronic-inflammation, dysbiosis
• indicationstring
  A disease, by name or entity key (idiopathic pulmonary fibrosis, alzheimer-disease).
• stagestring
  Stage: with indication, the stage for that indication; otherwise the asset's furthest stage.One of approved, phase3, phase2, phase1, human_trials, veterinary, preclinical, discontinued
• countrystring
  The developer's country, ISO 3166 alpha-2 (US, GB, CH).
• organisationstring
  An organization key: the assets it develops, partners on or licensed out.
• qstring
  Letters and digits in any of the asset's names or code names (UBX1325 matches UBX-1325).
• kindstring
  any for all; counts default to program.One of program, repurposing, research, any
• cursorstring
  Opaque cursor from pagination.next_cursor of the previous page. Keep the other parameters the same.
• limitinteger
  Results per page, 1 to 100. Default 25.

Returns data: an array of Asset, with pagination.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/assets?modality=small_molecule&stage=phase2&hallmark=cellular-senescence"

GET/api/v1/assets/{key}

Get one asset

One asset by its key or any of its code names (ubx1325, UBX-1325, bms986278), with every indication, the trials and sources behind each stage, its lifespan evidence and the news that names it. Pro and Enterprise keys.

• keypath · string
  The asset's key or a code name, URL-encoded. Required.

Returns data: one Asset.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/assets/ubx1325"

GET/api/v1/pipeline

Count the pipeline

How many assets there are, grouped by stage, modality, target, hallmark, indication, the developer's country or the developer, with each group's count at each stage. Takes the filters of /assets, so by=target&indication=obesity counts the targets of obesity programs. An indication counts each asset at its stage for that indication. Pro and Enterprise keys.

• bystring
  What to group by. Default stage.One of stage, modality, target, hallmark, indication, country, developer
• targetstring
  A target: a gene symbol or key (GLP1R, bcl2l1) or a process key (mtor, cellular-senescence).
• mechanismstring
  Words that must all appear in the asset's mechanism line (case-insensitive).
• modalitystring
  The kind of therapy (see modality).
• hallmarkstring
  A hallmark of aging the asset acts on.One of genomic-instability, telomere-attrition, epigenetic-alterations, loss-of-proteostasis, disabled-macroautophagy, deregulated-nutrient-sensing, mitochondrial-dysfunction, cellular-senescence, stem-cell-exhaustion, altered-intercellular-communication, chronic-inflammation, dysbiosis
• indicationstring
  A disease, by name or entity key (idiopathic pulmonary fibrosis, alzheimer-disease).
• stagestring
  Stage: with indication, the stage for that indication; otherwise the asset's furthest stage.One of approved, phase3, phase2, phase1, human_trials, veterinary, preclinical, discontinued
• countrystring
  The developer's country, ISO 3166 alpha-2 (US, GB, CH).
• organisationstring
  An organization key: the assets it develops, partners on or licensed out.
• qstring
  Letters and digits in any of the asset's names or code names (UBX1325 matches UBX-1325).
• kindstring
  any for all; counts default to program.One of program, repurposing, research, any
• limitinteger
  Groups to return, the largest first, 1 to 200. Default 50.

Returns data.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/pipeline?by=target&hallmark=cellular-senescence"

GET/api/v1/stats

Get corpus statistics

Counts across the corpus: papers read, how many the site shows, by category and study type, stories, knowledge-graph size, and daily volumes for the last 30 days.

Returns data: one Stats.

curl -H "Authorization: Bearer $ARN_KEY" \
  "https://agingresearch.news/api/v1/stats"

Paper

A paper we have read.

• idstring
  AgingResearch.News paper id: the source and its id. MED-<PMID>, PPR-<Europe PMC preprint id>, BIORXIV-, MEDRXIV- or ARXIV-<id> for papers read from a preprint server, DOI-<DOI> for journal articles read from Crossref, OpenAlex, J-STAGE and the other journal sources, CBPT-<id> for a CNKI article without a DOI, CYBERLENINKA-<slug> for a CyberLeninka article without one. Up to 200 characters.
• sourcestring
  Record namespace: MED (PubMed), PPR (preprint servers) or DOI (journal articles read from Crossref).
• doistring or null
  DOI, lowercase, without the https://doi.org/ prefix.
• titlestring
  Title in English: as published, or its translation for a paper published in another language (see translation).
• languagestring or null
  The language the paper was published in, as an ISO 639-1 code. en for English and for papers published in English alongside another language. Null when it has not been recorded.
• title_originalstring or null
  The title in the paper's own language, for a paper not published in English. Null for English papers and when we do not hold it.
• translationstring or null
  Where the English title came from, for a paper not published in English: source (PubMed or the publisher supplied it) or machine (we translated it). Null for English papers.One of source, machine
• authorsstring
  Authors in brief, as Europe PMC writes them: the first three, then et al. A paper's detail lists every author in authors_full.
• journalstring
  Journal or preprint server.
• published_datedate or null
  Publication date, YYYY-MM-DD.
• published_precisionstring or null
  How much of published_date its source gave: day; month, when the source names only the month ("2026 Oct", given as its 1st in published_date); year, when it names only the year (given as 1 January). A date stored before we kept this and falling on the 1st of a month reads as month. Null when there is no publication date.One of day, month, year
• indexed_datedate
  Date Europe PMC first indexed the record: the day it was added. since and until filter on this.
• preprintboolean
  True for preprints that have not been peer reviewed.
• publication_typesarray of string
  Publication types from PubMed, e.g. Journal Article, Review, Randomized Controlled Trial.
• urlURL
  Where to read the paper: the DOI, else PubMed or Europe PMC.
• open_accessobject or null
  Open access: a copy anyone can read in full. Null when we know of none.
• open_access.statusstring
  How it is open: gold, hybrid, green, bronze or diamond, or preprint for a paper on a preprint server.
• open_access.urlURL
  Where to read it in full.
• open_access.versionstring
  The version there: the published article or the author's accepted manuscript.One of published, accepted
• open_access.licensestring or null
  Its license, lowercase, e.g. cc by. Null when none is stated.
• site_urlURL
  The paper's page on AgingResearch.News.
• abstractstring or null
  Full abstract. Null when the source has none. Its license is abstract_license.
• abstract_truncatedboolean
  True when abstract is cut to its opening: a list asked for with compact=1, and the assistant tools' lists. Read the whole abstract at /papers/{id}.
• abstract_licensestring or null
  License of the abstract as reported by Europe PMC, lowercase, e.g. cc by, cc by-nc. Null when the publisher reports none, which means all rights reserved.
• judgementJudgement or null
  The paper's relevance to aging and how it bears on it, as judged. Null until it has been judged.
• integrityobject or null
  The paper's retraction, withdrawal, expression of concern or correction, from Retraction Watch, Crossref and the publishers; of several, the one that holds it back, else its latest correction.
• integrity.kindstring
  What the notice does to the paper: retraction, withdrawal, concern (an expression of concern not lifted), or correction. A retracted, withdrawn or concern paper is kept out of our feeds and evidence; check it before citing the paper as evidence.One of retraction, withdrawal, concern, correction
• integrity.datedate or null
  The notice's date, YYYY-MM-DD, when its source gives one.
• integrity.urlURL or null
  Where to read the notice.
• subjectsarray of EntityRef
  What the paper studies, targets or measures: its interventions, processes, genes, cell components, diseases, biomarkers, methods and organisms that have a page on the site. Entities it only mentions, uses as a tool or as a damage model are left out; a paper's detail lists every entity with its role. Empty until the paper has been analyzed.
• systemsarray of string
  The body systems the paper involves, derived from its tissues, diseases and outcomes: eye (Eye), ear (Ear), heart-vessels (Heart and blood vessels), kidney (Kidney), lung (Lung), reproductive (Reproductive system), skin (Skin), brain-nerves (Brain and nerves), blood-immune (Blood and immune system), bone-joints (Bones and joints), muscle (Muscle), metabolism (Metabolism), gut-microbiome (Gut and microbiome), whole-body (Whole body). whole-body means three or more systems, or lifespan, frailty or mortality as the outcome. Empty until the paper has been analyzed.
• lensLens
  Lenses on the paper, derived from what it studies.
• storyStorySummary or null
  Our published story about the paper, if there is one.

PaperRef

A paper, without its story.

Every field of Paper except story.

Judgement

A paper's relevance to aging and how it bears on it, as judged.

• relevancenumber
  Aging relevance, 0 to 3, probability-weighted: 0 out of scope, 1 adjacent, 2 relevant, 3 core. How directly the paper's own work bears on aging.
• relevance_confidencenumber or null
  Classifier confidence in the relevance score, 0 to 1.
• visibilitystring or null
  Where the paper appears on the site: core (aging itself is the object) and visible are in feeds, category pages and the default results here; searchable is in search and Ask AgingResearch.News only; matchable is kept for matching against a reader's stated interests and appears nowhere else; out appears nowhere. A paper is visible when it is probably relevant, its age_link shows a link to aging and it is not promotional.One of out, matchable, searchable, visible, core
• newsworthinessnumber
  Newsworthiness for people who follow aging research, 0 to 3: 0 routine, 1 notable, 2 important, 3 major.
• study_typestring or null
  Main source of evidence.One of human_trial, human_observational, animal, invertebrate, cells, computational, review, other
• study_type_labelstring or null
  Display label for study_type, e.g. Human trial.
• study_type_confidencenumber or null
  Confidence in study_type, 0 to 1.
• categorystring or null
  Slug of the category the paper is filed under, by what it mainly establishes (see /categories). Null on papers judged before the categories, and on papers about none of them.One of mechanisms, interventions, biomarkers, populations, ai-data, industry-policy
• category_labelstring or null
  Display label for category, e.g. Interventions.
• category_confidencenumber or null
  Probability the classifier gave category, 0 to 1.
• secondary_categorystring or null
  The runner-up category, when its probability is at least 0.3. The paper is listed under it too.One of mechanisms, interventions, biomarkers, populations, ai-data, industry-policy
• age_linkstring or null
  The strongest link to aging the work's own data or argument shows: lifespan_healthspan (Lifespan, survival or healthspan is measured); aged_comparison (Old and young are compared, or naturally aged organisms or tissues are studied); age_trajectory (Change across ages, or exceptional longevity); aging_outcome (Biological age, frailty, function, multimorbidity or mortality is the outcome); age_accumulating_state (A state that builds up with age: senescent cells, clonal hematopoiesis, loss of Y, somatic mutation); aging_lever (An intervention with lifespan or healthspan evidence is studied, in any condition); prevention (Prevention, screening or risk of a leading age-related disease, its risk factors, or menopause); tool_or_field (A tool, dataset, product or event built for aging research, or evaluated on it); rejuvenation_tech (Technology to repair, replace, regenerate or preserve the aging body: reprogramming, regeneration, gene therapy platforms, cryopreservation, nanomedicine); population_only (Older people are only the study population); asserted_only (Aging is only background or motivation); none (No link to aging). The last three show none, and keep a paper out of the feeds. Null on papers judged before the age link.One of lifespan_healthspan, aged_comparison, age_trajectory, aging_outcome, age_accumulating_state, aging_lever, prevention, tool_or_field, rejuvenation_tech, population_only, asserted_only, none
• age_link_confidencenumber or null
  Probability the classifier gave age_link, 0 to 1.
• topicstring or null
  Deprecated: read category and subjects. Slug of the legacy topic the paper is filed under (see /topics), or other. Still filed for every paper whose visibility is searchable, visible or core; null until a new paper has been filed, and on most papers below that.One of senescence, epigenetic-clocks, mtor-rapamycin, reprogramming, nad-sirtuins, mitochondria, dietary-restriction, glp-1, inflammaging, brain-aging, other
• topic_confidencenumber or null
  Confidence in topic, 0 to 1.
• promotionalnumber or null
  Probability, 0 to 1, that the record is promotional rather than research.
• prompt_versionstring
  Version of the questions the classifier answered.
• judged_atdate-time
  When the paper was judged (UTC).

StorySummary

A story, in brief.

• headlinestring
  Story headline.
• dekstring
  One-sentence standfirst.
• urlURL
  The story on AgingResearch.News.

PaperDetail

A paper with everything we know about it.

Every field of Paper, plus:

• authors_fullarray of AuthorFull or null
  Every author in the paper's order, from OpenAlex, else PubMed, arXiv or bioRxiv. Null until the paper's full author list has been read; empty when its sources list none.
• storyStory or null
  Our full published story, if there is one.
• upvotesinteger
  Reader upvotes on AgingResearch.News.
• entitiesarray of PaperEntity
  Entities extracted from the paper. Empty until the paper has been analyzed.
• claimsarray of Claim
  Claims extracted from the paper. Empty until the paper has been analyzed.

AuthorFull

One author of a paper.

• namestring
  The author's name, given names first, in the fullest form we know (a given name where the paper prints an initial), or a group's name (a consortium listed as an author).
• printed_namestring or null
  The name as the paper prints it, when it differs from name.
• author_idstring or null
  Our id for this person, which the author filter takes; one person keeps one id across the forms of their name. Null for an author known only by name.
• orcidstring or null
  ORCID iD, e.g. 0000-0002-1825-0097, when a source gives one.
• openalex_idstring or null
  OpenAlex author id, e.g. A5022713595, when OpenAlex lists the paper.
• institutionsarray of string
  The author's institutions on this paper: OpenAlex's names, else read from the source's affiliation lines. May be empty.
• positioninteger
  1-based place in the author list.

Story

A story we wrote about a paper.

• headlinestring
  Story headline.
• dekstring
  One-sentence standfirst.
• bodystring
  The story, plain text paragraphs separated by blank lines.
• why_it_mattersstring
  Why the finding matters.
• caveatsstring
  Limits of the study.
• supportnumber or null
  Independent check of how faithfully the story reports the paper, 0 to 3. Each part of the story (headline, dek, body, why it matters, caveats) is scored against the abstract, and the full-text excerpt when the story was written from one: 0 contradicts or invents, 1 misleads, 2 does not mislead but is loosely worded, 3 does not mislead. This is the lowest part score; a story is published at 1.9 or more. Stories written before 4 October 2026 that have not been checked again hold a single score of the whole story on a similar scale.
• published_atdate-time
  When the story was published (UTC).
• urlURL
  The story on AgingResearch.News.

SearchHit

A paper that matched a search.

Every field of Paper, plus:

• scorenumber
  Match score, 0 to 1. Higher is better.

StoryItem

A published story with its paper.

Every field of Story, plus:

• paper_idstring
  Paper the story is about.
• paperPaperRef
  The paper the story is about, without its story.

Category

A category.

• slugstring
  Category slug, used by the category filter.One of mechanisms, interventions, biomarkers, populations, ai-data, industry-policy
• namestring
  Display name.
• descriptionstring
  What the category covers.
• papers_7dinteger
  Papers the site shows that are filed under the category, first or second, and were added in the last 7 days.
• papers_totalinteger
  All papers the category's page lists: filed under the category, first or second, from the dated record.
• site_urlURL
  The category's page.
• feed_urlURL
  RSS feed of the category's stories and papers.
• subjectsarray of EntityRef
  The active subjects the category's page names, at most 8, strongest first. Empty until subjects have been measured.

Subject

An active subject: an entity the site names on its cards and category pages.

• typestring
  Entity type: intervention, gene, pathway (a biological process), component (a cell component), system (a body system), method, disease, biomarker, organism, tissue, phenotype, hallmark, dataset, population, organisation, person, theory or mesh (a MeSH heading).
• keystring
  Normalized key within the type: an ontology id when known.
• namestring
  Display name.
• papers_30dinteger
  Papers the site shows that carry the subject, from the last 30 days.
• papers_60dinteger
  The same over 60 days.
• growthnumber or null
  The 30-day papers over the 30 days before them. Null when those had none.
• share_60dnumber
  The share of all 60-day papers that carry the subject, 0 to 1.
• categoriesobject of integers
  The 30-day papers by category slug. A paper counts under its category and under its secondary category.
• site_urlURL
  The subject's page.
• api_urlURL
  The subject as an entity, with its papers.

Topic

A legacy topic.

• slugstring
  Topic slug, used by the topic filter.
• namestring
  Display name.
• descriptionstring
  What the topic covers.
• papers_7dinteger
  Papers the site shows that the topic filter matches, from the last 7 days.
• papers_totalinteger
  All papers the site shows that the topic filter matches.
• site_urlURL
  The topic's old address, which redirects to the page of the subject that replaced it, or to a search for the topic's name until that page exists.
• feed_urlURL
  RSS feed of the topic's stories and papers.
• replaced_byobject or null
  The subject whose page replaced the topic's. Null until that page exists: until a paper the site shows is linked to the subject.
• replaced_by.typestring
  Entity type: intervention, gene, pathway (a biological process), component (a cell component), system (a body system), method, disease, biomarker, organism, tissue, phenotype, hallmark, dataset, population, organisation, person, theory or mesh (a MeSH heading).
• replaced_by.keystring
  Normalized key within the type: an ontology id when known.
• replaced_by.site_urlURL
  The subject's page.
• replaced_by.api_urlURL
  The subject as an entity, with its papers.

Lens

Lenses on a paper.

• hallmarksarray of EntityRef
  The hallmarks of aging (López-Otín 2023) the paper reaches through a biological process its own findings are about. Empty until the paper has been analyzed.

Entity

Something papers are about.

• typestring
  Entity type: intervention, gene, pathway (a biological process), component (a cell component), system (a body system), method, disease, biomarker, organism, tissue, phenotype, hallmark, dataset, population, organisation, person, theory or mesh (a MeSH heading).
• keystring
  Normalized key within the type: an ontology id when known.
• namestring
  Display name.
• idsobject of strings
  Identifiers in other databases, e.g. pubchem, chebi, hgnc, ncbigene, taxon, mesh, go.
• paper_countinteger
  Papers the site shows that study the entity, as its page counts them: a hallmark's with those of its processes, an intervention class's with those of its members; not those that only mention it or use it as a tool or a damage model.
• api_urlURL
  This entity's API URL.

EntityDetail

An entity with its papers.

Every field of Entity, plus:

• claim_countinteger
  Claims with the entity as subject or object.
• evidenceEvidenceSignature or null
  For an intervention, a gene or a process, its evidence as structure, never as a grade. Null for other types and for an entity with nothing on record; null too, with evidence in unavailable, on the rare request that could not read it in time: ask again a few seconds later.
• papersarray of EntityPaper
  Papers that involve the entity, newest first. Paginated.
• unavailablearray of string
  The fields of this record that could not be read for this answer (the read failed or ran out of time): each is null or empty here for that reason, not because the record holds nothing, so ask again shortly. A null or empty field not named here is what the record holds. Empty when every field was read.

EvidenceSignature

What our record shows about an intervention, a gene or a process, as structure: the species its findings reach and whether independent labs found the same there, the labs and countries behind them, the findings against, its trials and those with no results posted, its funders and its company ties. Never a grade. Recomputed from stored rows every six hours.

• ladderobject
  Where the findings were made, rung by rung. replicated: two or more independent labs report the same change (an increase, or a decrease) in the same outcome there. single: findings, with no such pair: one lab or one study, or labs that never found the same change. none: no finding there.
• ladder.cellsstring
  Cultured cells and organoids, of any species.One of replicated, single, none
• ladder.invertebratesstring
  Worms, flies and other invertebrates, with yeast and other single-celled organisms.One of replicated, single, none
• ladder.micestring
  Mice, rats and every other mammal or vertebrate.One of replicated, single, none
• ladder.humansstring
  Studies in people, and meta-analyses and systematic reviews that pool them.One of replicated, single, none
• findingsinteger
  Findings on the four rungs: claims of visible papers no integrity notice holds back that name the entity as subject or object, counted as its page on the site counts them. In-silico work, narrative reviews and what a paper only cites are not counted.
• independent_labsinteger
  Labs behind the findings. A paper's lab is its last author with the institutions listed for them; papers that share a last author or an institution, directly or through another paper, are one lab.
• countriesinteger
  Countries of the labs' institutions, else of all the papers' authors.
• againstinteger
  Findings that point the other way from most findings on the same outcome: a null result or the opposite change where most found a change, or a change where most found none. Mixed results and relations with no direction never count.
• trialsobject
  Its clinical trials.
• trials.registeredinteger
  Registered trials: an intervention's, those that give it (a class, its members) in an experimental arm or in a record with no arms; a gene's or a process's, those the indications of drugs that target it cite.
• trials.completedinteger
  Of those, the trials the registry calls completed.
• trials.unreportedinteger
  Of those, the trials ClinicalTrials.gov records as completed or terminated more than 12 months ago (primary completion, else completion) with no results posted, that no paper in our record cites. A trial of another registry, or with no date, never counts; one whose results appeared only in a journal we do not hold does.
• fundersarray of object
  Up to 10 funders: those the findings' papers name (PubMed's grant lists, Crossref's deposits and OpenAlex), most findings first, then the funders of grants whose titles name the entity.
• funders[].namestring
  The funder's name.
• funders[].kindstring
  What the funder is: public (a government, its agencies and research councils), foundation (charities, trusts, patient associations), company, or other (a university's or hospital's own funds, and anything unnamed).One of public, foundation, company, other
• funders[].findingsinteger
  Findings whose papers name it. 0 for a funder known only from grants whose titles name the entity.
• tiesobject
  Company ties, as facts.
• ties.findingsinteger
  Findings with an author at a company (an industry organization in our graph, or an institution OpenAlex lists as a company), or from a paper whose competing-interests statement, as its record gives it, declares ties to a company.
• ties.with_company_tiesinteger
  findings and the trials sponsored, as lead or collaborator, by a company developing the intervention (for a gene or a process, a drug that targets it).
• ties.notestring or null
  Each as a sentence, e.g. "4 of 9 human papers declare ties to its developer Novartis; 79 of 535 trials are sponsored by companies that develop it." A developer counts with the group it is part of. Null when there are none.

EntityPaper

A paper that involves an entity.

Every field of PaperRef, plus:

• rolesarray of string
  Roles the entity plays in this paper.

PaperEntity

An entity as it appears in one paper.

• typestring
  Entity type: intervention, gene, pathway (a biological process), component (a cell component), system (a body system), method, disease, biomarker, organism, tissue, phenotype, hallmark, dataset, population, organisation, person, theory or mesh (a MeSH heading).
• keystring
  Normalized key within the type: an ontology id when known.
• namestring
  Display name.
• idsobject of strings
  Identifiers in other databases, e.g. pubchem, chebi, hgnc, ncbigene, taxon, mesh, go.
• rolestring
  What the entity is in this paper, e.g. studied, mechanism, outcome, model, context, target, mentioned, indexed (a MeSH heading).
• detailobject or null
  Detail about the role, as extracted. Keys: class, form, targets, dose, route, duration, strain, sex, age, n, system, species, role, effect, confidence, kind, direction, magnitude, major, qualifiers, chemical, registry, and mention and description, which quote or paraphrase the abstract. Null when there is none.

Claim

A finding, as subject, relation and object.

• idinteger
  Claim id.
• paper_idstring
  Paper the claim comes from.
• subjectClaimSide
  What acts.
• relationstring
  How the subject relates to the object, e.g. increases, decreases, associated_with, extends_lifespan, protects_against.
• objectClaimSide
  What is affected.
• organismstring or null
  Organism the finding is in.
• contextobject or null
  Conditions of the finding, as extracted. Keys: condition, form, sex, age, tissue, dose, duration, n, subject_type, object_type, primary, design, evidence_level, preprint; a key with no value is left out. Null when there are none.
• directionstring or null
  Direction of the effect.One of increase, decrease, no_change, mixed
• magnitudestring or null
  Effect size as reported, e.g. +14% median lifespan.
• evidencestring or null
  Supporting quote from the abstract. Null when there is none.
• confidencenumber or null
  Extraction confidence, 0 to 1.
• created_atdate-time
  When the claim was extracted (UTC).

ClaimSide

One end of a claim.

• textstring
  The subject or object as the paper states it.
• entityEntityRef or null
  The canonical entity, when it was resolved.

EntityRef

A pointer to an entity. Read it at /entities/{type}/{key}.

• typestring
  Entity type: intervention, gene, pathway (a biological process), component (a cell component), system (a body system), method, disease, biomarker, organism, tissue, phenotype, hallmark, dataset, population, organisation, person, theory or mesh (a MeSH heading).
• keystring
  Normalized key within the type: an ontology id when known.
• namestring
  Display name.

ClaimItem

A claim with its paper.

Every field of Claim, plus:

• paperClaimPaper
  The paper, in brief.

ClaimPaper

A paper, in brief.

• idstring
  AgingResearch.News paper id.
• titlestring
  Title.
• doistring or null
  DOI.
• journalstring
  Journal or preprint server.
• published_datedate or null
  Publication date.
• published_precisionstring or null
  How much of published_date its source gave: day, month or year (see Paper).One of day, month, year
• preprintboolean
  True for preprints.
• urlURL
  Where to read the paper.
• site_urlURL
  The paper on AgingResearch.News.
• integrityobject or null
  The paper's retraction, withdrawal, expression of concern or correction, from Retraction Watch, Crossref and the publishers; of several, the one that holds it back, else its latest correction.
• integrity.kindstring
  What the notice does to the paper: retraction, withdrawal, concern (an expression of concern not lifted), or correction. A retracted, withdrawn or concern paper is kept out of our feeds and evidence; check it before citing the paper as evidence.One of retraction, withdrawal, concern, correction
• integrity.datedate or null
  The notice's date, YYYY-MM-DD, when its source gives one.
• integrity.urlURL or null
  Where to read the notice.

Trial

A clinical trial we have read from ClinicalTrials.gov or another registry.

• nct_idstring
  The trial's number in its own registry: an NCT number for ClinicalTrials.gov, else e.g. ISRCTN12345678, ChiCTR2400080001, CTRI-2024-01-012345, CTIS2024-512345-12-00.
• registrystring
  The registry the trial is registered in: ctgov, ctis, isrctn, chictr, ctri, jrct, anzctr, drks, cris, irct, pactr, rebec, tctr and others.
• secondary_idsarray of string
  The trial's numbers in other registries.
• sourcestring
  The registry the record comes from: ctgov (ClinicalTrials.gov), ctis, isrctn, or ictrp (the WHO International Clinical Trials Registry Platform).
• attributionstring or null
  The credit the record's source asks for, to show with it: "Source: WHO ICTRP" for ictrp records. Null when none is asked.
• source_processedstring or null
  For ictrp records, the day WHO last processed the record (YYYY-MM-DD), to show with the attribution.
• titlestring
  Brief title.
• acronymstring or null
  Acronym, when the trial has one.
• phasesarray of string
  Phases as registered. Empty for most observational studies.
• phase_labelstring or null
  Display label for phases, e.g. Phase 1/2. Null when none is registered.
• statusstring
  Overall status code, e.g. RECRUITING, COMPLETED, TERMINATED.
• status_labelstring
  Display label for status.
• study_typestring or null
  INTERVENTIONAL, OBSERVATIONAL or EXPANDED_ACCESS.
• sponsorstring or null
  Lead sponsor.
• sponsor_classstring or null
  Lead sponsor's class: INDUSTRY, NIH, FED, OTHER_GOV, INDIV, NETWORK, OTHER, AMBIG or UNKNOWN.
• enrollmentinteger or null
  Participants, estimated or actual (see enrollment_type).
• enrollment_typestring or null
  ESTIMATED or ACTUAL.
• conditionsarray of string
  Conditions studied.
• interventionsarray of object
  Interventions tested.
• interventions[].typestring
  Intervention type, e.g. DRUG, BEHAVIORAL, DIETARY_SUPPLEMENT.
• interventions[].namestring
  Intervention name.
• first_postedstring
  When the trial was first posted: YYYY-MM-DD.
• last_update_postedstring
  When the registry last posted an update: YYYY-MM-DD. Lists are newest first by this; since filters on it.
• results_first_postedstring or null
  When results were first posted, YYYY-MM-DD.
• has_resultsboolean
  Whether the registry holds results.
• relevancenumber or null
  Aging relevance, 0 to 3, as judged. Null until judged.
• focusstring or null
  The trial's main connection to aging: intervention (Geroscience intervention), condition (Age-related condition), endpoint (Healthspan endpoint), biomarker (Aging biomarker), observational (Aging cohort), other (Aging-related). Null until judged.One of intervention, condition, endpoint, biomarker, observational, other
• focus_labelstring or null
  Display label for focus.
• latest_eventTrialEvent or null
  The latest change recorded. Null when none was.
• registry_urlURL
  The trial's record in its registry.
• site_urlURL
  The trial on AgingResearch.News.
• api_urlURL
  This trial's API URL.

TrialDetail

A trial with its registry detail.

Every field of Trial, plus:

• official_titlestring or null
  Official title.
• summarystring or null
  The registry's brief summary.
• primary_outcomesarray of string
  Primary outcome measures.
• keywordsarray of string
  The registry's keywords.
• collaboratorsarray of string
  Collaborating organizations.
• agesarray of string
  Age groups the trial enrolls.
• start_datestring or null
  Start date as registered: YYYY-MM-DD or YYYY-MM.
• primary_completion_datestring or null
  Primary completion date as registered: YYYY-MM-DD or YYYY-MM.
• completion_datestring or null
  Completion date as registered: YYYY-MM-DD or YYYY-MM.
• why_stoppedstring or null
  Why the trial stopped, when it did.
• newsworthinessnumber or null
  Newsworthiness for people who follow aging research, 0 to 3.
• judged_atdate-time or null
  When the trial was judged (UTC).
• eventsarray of TrialEvent
  Every change recorded, newest first.
• papersarray of TrialPaper
  Papers that cite the trial's registry number, newest first, at most 20.

TrialEvent

A change in a trial's registry record.

• kindstring
  What changed: registered, status, results (first results posted), phase, enrollment, completion (the completion date moved) or endpoint (the primary outcomes changed; from and to list them, one a line).
• fromstring or null
  The value before, in the registry's terms. Null for a registration or first results.
• tostring or null
  The value after.
• datestring
  The registry's post date of the change, YYYY-MM-DD.

TrialPaper

A paper that cites a trial.

• idstring
  AgingResearch.News paper id.
• titlestring
  Title.
• journalstring
  Journal or preprint server.
• story_headlinestring or null
  Our story's headline, when we published one.
• site_urlURL
  The paper on AgingResearch.News.
• api_urlURL
  The paper's API URL.

NewsStory

A news story: one event, in our words, with a link to each outlet.

• idinteger
  Story id: one per real-world event, however many outlets covered it.
• kindstring
  What the story is about.One of company, trial_result, regulatory, funding, research_news, policy, conference, other
• kind_labelstring
  Display label for kind, e.g. Funding.
• headlinestring
  Our headline.
• summarystring
  Our one-paragraph summary.
• first_seen_atdate-time
  When the first coverage appeared (UTC).
• last_seen_atdate-time
  When the latest coverage appeared (UTC). Lists are newest first by this.
• relevancenumber
  Aging relevance of the best coverage, 0 to 3.
• leadNewsLink
  The coverage the story is written from.
• linksarray of NewsLink
  Every outlet that covered the event, lead first, one link per outlet.
• papersarray of NewsPaper
  Papers the story reports on, at most 3.
• trialsarray of NewsTrial
  Trials the coverage cites by registry number, at most 4.

NewsLink

One outlet's coverage.

• sourcestring
  Outlet, e.g. STAT, GlobeNewswire, FDA.
• source_typestring
  Kind of outlet: pr_wire, longevity_outlet, aggregator (research news), regulator, science_news, trade_news, filing (SEC), newsletter, podcast, funder, conference or journal.
• urlURL
  The outlet's article.
• published_atdate-time
  When the outlet published it (UTC).
• paywallboolean
  True when the article is behind a paywall.

NewsPaper

A paper a news story reports on.

• idstring
  AgingResearch.News paper id.
• titlestring
  Our story's headline when we published one, else the paper's title.
• has_storyboolean
  Whether we published a story about the paper.
• site_urlURL
  The paper on AgingResearch.News.
• api_urlURL
  The paper's API URL.

NewsTrial

A trial a news story cites.

• nct_idstring
  The trial's registry number.
• site_urlURL
  The trial on AgingResearch.News.
• api_urlURL
  The trial's API URL.

Grant

A research grant judged to bear on aging.

• urlURL
  The award's record at its source.
• titlestring
  The grant's title as the funder publishes it.
• funderOrganisationRef or null
  Who pays.
• holderOrganisationRef or null
  The organization that holds it: the lead, for a grant several share.
• holdersinteger
  How many organizations hold it.
• peoplearray of OrganisationRef
  Its investigators, as person entities.
• amountnumber or null
  The whole award in currency, as a number: the sum of its holders' shares, never converted. Null when the source gives none.
• currencystring or null
  ISO 4217 code of amount: USD, EUR, GBP. Null when the source gives none: never assumed to be USD.
• awarded_ondate or null
  The day it was awarded (notice, signature or award date), else its start.
• startdate or null
  Start of the funded period.
• enddate or null
  End of the funded period.
• programmestring or null
  The funder's scheme or activity code, e.g. R01, ERC-ADG, Research Grant, Discovery Award.
• awardstring or null
  The award number papers cite: the NIH core project number, the CORDIS grant agreement, the UKRI reference.
• sourcestring
  The source's host: reporter.nih.gov, cordis.europa.eu, gtr.ukri.org or grantnav.threesixtygiving.org.
• attributionstring or null
  The credit the record's license asks for, to show with it: the Open Government Licence v3.0's line for gtr.ukri.org and fundingawards.nihr.ac.uk records. Null when none is asked.

OrganisationRef

An organization or person in our graph.

• typestring
  organisation or person.One of organisation, person
• keystring
  Its key: its page is /organisation/{key} or /person/{key} on the site.
• namestring
  Its name.

ConferenceEdition

One edition of a conference.

• conference_idstring
  The conference's id, e.g. gsa: its key for /conferences/{id}.
• short_namestring
  The conference's short name, e.g. GSA.
• conference_namestring
  The conference's full name.
• fieldstring
  What the conference is about: aging (the biology of aging), disease (an age-related disease), translation (the biology and tools around them), investor (a venue investors watch).One of aging, disease, translation, investor
• areastring
  Its disease area or discipline, e.g. Geroscience, Alzheimer's and dementia, Oncology.
• editionstring
  The edition's id within the conference, e.g. 2025, or 2026-asia when a conference holds two in a year.
• namestring
  The edition as readers know it, e.g. GSA 2025.
• start_datedate
  First day, YYYY-MM-DD.
• end_datedate
  Last day, YYYY-MM-DD.
• locationstring
  City, and the venue or country where it helps.
• statusstring
  upcoming before its first day, on from its first to its last day (UTC), past after.One of upcoming, on, past
• abstract_sourcesarray of string
  Where the edition's abstracts come from. Empty when none may be read.
• abstract_countinteger
  Abstracts we hold from the edition.
• visible_abstract_countinteger
  Of those, the ones in the visible band, which the site lists.
• published_abstract_countinteger
  Of those, the ones matched to the paper they were later published as.
• site_urlURL
  The edition's abstracts on AgingResearch.News.
• api_urlURL
  The edition's abstracts in the API.
• conference_api_urlURL
  The conference's API URL.

Conference

A conference with its editions and, when asked for, one edition's abstracts.

• idstring
  The conference's id, e.g. gsa.
• short_namestring
  Short name, e.g. GSA.
• namestring
  Full name.
• fieldstring
  What the conference is about (see ConferenceEdition.field).One of aging, disease, translation, investor
• areastring
  Its disease area or discipline.
• organiserstring
  Who holds it.
• websiteURL
  The conference's own site.
• site_urlURL
  The conference on AgingResearch.News.
• api_urlURL
  This conference's API URL.
• editionsarray of ConferenceEdition
  Every edition, newest first.
• editionstring or null
  The edition whose abstracts are listed, as asked with edition. Null without it.
• abstractsarray of ConferenceAbstract or null
  The edition's abstracts, the most relevant first.

ConferenceAbstract

An abstract presented at a conference.

• idstring
  AgingResearch.News paper id of the abstract. Read it in full from /papers/{id}.
• titlestring
  The abstract's title.
• numberstring or null
  The abstract's number in the meeting's program or supplement, e.g. 1234 or LB-12.
• formatstring or null
  How it was presented, when the meeting says.One of oral, poster, late-breaking, trial-in-progress, workshop, abstract
• sessionstring or null
  The session or track it was presented in, when the meeting says.
• visibilitystring or null
  Its visibility band (see judgement.visibility).One of out, matchable, searchable, visible, core
• published_paper_idstring or null
  AgingResearch.News paper id of the paper the abstract was later published as. Null when none has been matched.
• site_urlURL
  The abstract on AgingResearch.News.
• api_urlURL
  The abstract's API URL.

Asset

A drug or therapy program.

• keystring
  The asset's key: its name with code names' letters and digits joined (ubx1325).
• namestring
  Its main name: the international name when one is known, else the code name.
• namesarray of string
  Code, brand and former names.
• modalitystring or null
  The kind of therapy: small_molecule (Small molecule), antibody (Antibody), protein (Protein or enzyme), peptide (Peptide), oligonucleotide (Oligonucleotide (siRNA, antisense)), mrna (mRNA), gene_therapy (Gene therapy), gene_editing (Gene editing), cell_therapy (Cell therapy), vaccine (Vaccine), microbiome (Microbiome), blood_product (Plasma or blood product), device (Device), supplement (Supplement), other (Other).
• stagestring or null
  The furthest stage of any indication: approved (Approved), phase3 (Phase 3), phase2 (Phase 2), phase1 (Phase 1), human_trials (Clinical, no phase), veterinary (Animal health), preclinical (Preclinical), discontinued (Discontinued).One of approved, phase3, phase2, phase1, human_trials, veterinary, preclinical, discontinued
• stage_labelstring or null
  Display label for stage.
• mechanismstring or null
  How it works, in a line.
• kindstring or null
  What it is: a program (a company, university or institute develops it), repurposing evidence (others' trials of a molecule no one develops: an old generic's investigator trials) or a research compound (papers only). Pipeline counts read programs.One of program, repurposing, research
• academicboolean
  For a program: whether every developer is a university, hospital, institute or other academic body.
• lifecycleboolean
  For a program: whether it is an old drug's new form, combination or use (first approved 15 years ago or more).
• developer_knownboolean
  For a program: whether its developer is known. False for a sponsor's product no developer is known for (its trial run by a contract research organization): a program, developer not known.
• companyobject or null
  The company that develops it: its best supported developer's group, by its top company parent.
• company.keystring
  Organization key.
• company.namestring
  Name.
• company.moreinteger
  How many other companies develop it.
• company.site_urlURL
  The organization on AgingResearch.News.
• lead_indicationEntityRef or null
  The lead indication: the furthest, then the best supported by trials and approvals.
• stage_as_ofstring or null
  The day stage was read as of (YYYY-MM-DD).
• stage_sourceURL or null
  Where stage was read: a trial's or a regulator's record where one gives it.
• genericboolean
  Whether it is an old generic molecule: first approved 15 years ago or more and made by several companies (FDA's applications, generic makers' among them, or the EU's). Its trial sponsors are then makers of their own products, listed in products, not its developers.
• first_approvalstring or null
  A molecule's first approval anywhere: a day (YYYY-MM-DD), or a year (YYYY) where only the year is known. Null when none is known.
• originatorstring or null
  Who first had the molecule approved: its first new-drug or biologics application's holder, as the regulator names it. Null when none is known.
• developersarray of AssetOrganisation
  Who develops it.
• partnersarray of AssetOrganisation
  Who co-develops or commercializes it, with their role.
• licensed_fromarray of AssetOrganisation
  Who it was licensed or acquired from.
• targetsarray of object
  What it binds: the genes of its curated mechanism (ChEMBL) and what its developer states, else genes independent documents agree on. Each once.
• targets[].typestring
  gene or process.One of gene, process
• targets[].keystring
  Entity key.
• targets[].namestring
  Gene symbol or process name.
• targets[].actionstring or null
  How it acts: inhibitor, agonist, antagonist, degrader…
• acts_onarray of object
  The processes its stated mechanism acts on, in its developer's own words. Never one paper's downstream effect.
• acts_on[].typestring
  process.One of process
• acts_on[].keystring
  Entity key.
• acts_on[].namestring
  Process name.
• productsarray of object
  For an old generic molecule, its products and their makers: formulations, combinations and approved brands, then generic makers' products. Empty for any other asset.
• products[].keystring or null
  The product's asset key, when there is one.
• products[].namestring
  Brand, formulation or code name.
• products[].makersarray of AssetOrganisation
  Who develops or makes it.
• products[].holderstring or null
  The holder its approval names.
• products[].approved_onstring or null
  Its first approval (YYYY-MM-DD).
• products[].genericboolean
  Whether it is a generic maker's product (an FDA abbreviated application).
• interventionsarray of EntityRef
  The intervention entities it is a program of, whose pages hold the papers about them.
• indicationsarray of AssetIndication
  Each indication at its furthest stage, furthest first.
• hallmarksarray of object
  Hallmarks of aging it acts on.
• hallmarks[].keystring
  Hallmark key.
• hallmarks[].namestring
  Hallmark.
• age_linksarray of string
  How it bears on aging (see the paper's age_link).
• evidencearray of object
  Lifespan results for what it contains (NIA ITP, DrugAge).
• evidence[].linestring
  The result.
• evidence[].sourceURL
  Where it is from.
• newsarray of object
  News items that name it, newest first.
• news[].idinteger
  The news item's id.
• news[].urlURL
  The outlet's article.
• sourcesinteger
  How many documents its facts were read from.
• updated_atstring
  When something about it was last read (UTC).
• literatureobject or null
  Its published research.
• literature.totalinteger
  Papers found under its names and code names.
• literature.last_yearinteger
  Of them, papers published in the last 365 days.
• literature.by_yeararray of object
  Papers a year.
• literature.by_year[].yearinteger
  Year.
• literature.by_year[].ninteger
  Papers that year.
• literature.by_kindobject of integers
  Papers by kind: rct, trial, meta-analysis, review, case-report, preclinical, other.
• literature.speciesarray of string
  Who or what its papers studied, from their indexing.
• literature.latestarray of AssetPaper
  The newest papers, newest first (at most 10).
• literature.abstractsarray of AssetPaper
  Conference abstracts that present it (at most 10).
• literature.checked_atstring or null
  When its names were last searched (UTC).
• designationsarray of object
  Its designations and those of the intervention it is, newest first.
• designations[].agencystring
  The regulator: FDA, EMA, PMDA, MHRA, Health Canada, TGA or NMPA.
• designations[].kindstring
  orphan, breakthrough, fast-track, rmat, prime, priority-review, accelerated-approval or pediatric.
• designations[].indicationstring or null
  What it was designated for, as the regulator words it.
• designations[].datedate or null
  The day it was granted, YYYY-MM-DD.
• designations[].activeboolean or null
  Whether it still stands, when the record says.
• designations[].sourcestring
  The record or announcement it was read from.
• exclusivityobject or null
  The patents and exclusivity listed for an approved drug.
• exclusivity.patentsarray of object
  Listed patents.
• exclusivity.patents[].numberstring
  Patent number.
• exclusivity.patents[].expiresdate
  Expiry, YYYY-MM-DD.
• exclusivity.patents[].kindsarray of string
  What it claims.
• exclusivity.patents[].usestring or null
  The use it covers.
• exclusivity.exclusivitiesarray of object
  Regulatory exclusivities.
• exclusivity.exclusivities[].codestring
  The exclusivity's code.
• exclusivity.exclusivities[].labelstring
  What it is.
• exclusivity.exclusivities[].expiresdate
  Expiry, YYYY-MM-DD.
• exclusivity.last_expirydate or null
  The latest expiry of any patent or exclusivity listed.
• exclusivity.sourcestring
  Where it was read (the Orange Book, the Purple Book).
• statusobject or null
  Its development status.
• status.statusstring
  Where it stands, by a stated rule over its dated activity.One of active, inactive, discontinued, approved, unknown
• status.sincedate or null
  Since when it has stood so, YYYY-MM-DD.
• status.reasonsarray of string
  Why it stands so, the strongest first.
• status.last_activityobject or null
  Its newest dated activity.
• status.last_activity.datedate
  YYYY-MM-DD.
• status.last_activity.whatstring
  What it was: a trial update, a paper, a filing, news, a designation.
• status.countriesarray of object
  Its furthest stage in each country, from trial sites and approvals.
• status.countries[].countrystring
  ISO 3166-1 alpha-2 code.
• status.countries[].stagestring
  Its furthest stage there.
• next_catalystAssetEvent or null
• eventsarray of AssetEvent
  What companies' filings report and regulators publish about it, newest first (at most 10).
• api_urlURL
  This asset's API URL.
• unavailablearray of string
  The fields of this record that could not be read for this answer (the read failed or ran out of time): each is null or empty here for that reason, not because the record holds nothing, so ask again shortly. A null or empty field not named here is what the record holds. Empty when every field was read.

AssetPaper

A paper about an asset.

• refstring
  pmid:<n> or doi:<doi>.
• titlestring
  Title.
• journalstring or null
  Journal or meeting.
• datedate or null
  Publication day, YYYY-MM-DD; a year's first day when only the year is known.
• kindsarray of string
  What kind of paper it is.
• speciesarray of string
  Who or what it studied.
• urlURL
  AgingResearch.News's page for it when held, else its own record.

AssetEvent

A dated event about a drug: a catalyst ahead, a readout, a regulator's action, a program stopped.

• kindstring
  What happened or is due.One of pdufa, filing-accepted, advisory-committee, crl, approval, clinical-hold, hold-lifted, topline, readout-expected, discontinued, inactive, executive, patent-extension
• datedate
  The day it was reported or happened, YYYY-MM-DD.
• titlestring
  What it is, in a line.
• detailsarray of string
  Its details: the indication, the trial, the terms.
• duedate or null
  The day it is due, or the last day of the period its source names, YYYY-MM-DD.
• due_asstring or null
  How exactly the source states the day ahead.One of day, month, quarter, half, year
• due_wordsstring or null
  The day ahead in words: PDUFA Mar 12, 2027, Topline expected Q1 2027.
• sourcestring
  The filing or record it was read from.

AssetOrganisation

An organization behind an asset.

• keystring
  Organization key.
• namestring
  Name.
• countrystring or null
  Head office, ISO 3166 alpha-2, for a developer.
• rolestring or null
  A partner's role.
• kindstring or null
  How a partner partners: a license (licence) or a collaboration a deal records, or a co-development whose trials it shares. Null for a developer, a licensor or a maker.One of licence, co-development, collaboration
• site_urlURL
  The organization on AgingResearch.News.

AssetIndication

An indication and its stage, furthest first, then the best supported: the first with a disease is the lead indication.

• diseaseEntityRef or null
  The disease; null for an indication with none named, as in a trial in healthy volunteers.
• stagestring
  How far it has gone for this indication.One of approved, phase3, phase2, phase1, human_trials, veterinary, preclinical, discontinued
• stage_labelstring
  Display label for stage.
• phasestring or null
  The registry phase, when a trial is the source.
• statusstring or null
  The trial's status, when a trial is the source.
• trialstring or null
  The trial's NCT number, when a trial is the source.
• sourceURL
  Where the stage was read: a trial's or a regulator's record where one gives it.
• as_ofstring
  The day the stage was read as of (YYYY-MM-DD); for an approval, its first.
• supportinteger or null
  The distinct trials and regulators' approvals that give this stage (documents only where none do).

PipelineGroup

One group of the pipeline.

• keystring
  The group's key: a stage, modality, entity key, country code or organization key; unknown when not known.
• namestring
  The group's name.
• assetsinteger
  Assets in the group.
• stagesobject of integers
  Assets in the group by stage (unknown when none is known).

Stats

Corpus statistics.

• papersobject
  Paper counts.
• papers.totalinteger
  Every paper we have read.
• papers.judgedinteger
  Papers the classifier has judged.
• papers.aginginteger
  Papers the site shows: visibility visible or core.
• papers.coreinteger
  Of which core: aging itself is the object.
• papers.tangentialinteger
  Adjacent: relevance 1 or more, not shown.
• papers.preprintsinteger
  Preprints.
• papers.open_abstractsinteger
  Papers whose abstract is under CC BY, CC0 or public domain. Every paper's abstract is returned, whatever its license.
• storiesobject
  Story counts.
• stories.publishedinteger
  Published stories.
• knowledgeobject
  Knowledge-graph counts.
• knowledge.papers_extractedinteger
  Papers that have been through extraction.
• knowledge.entitiesinteger
  Entities.
• knowledge.claimsinteger
  Claims.
• by_study_typearray of object
  The papers the site shows, by study type.
• by_study_type[].study_typestring
  Study type.
• by_study_type[].labelstring
  Display label.
• by_study_type[].papersinteger
  Shown papers of this type.
• by_categoryarray of object
  The papers the site shows, by category. Every category is listed; a paper counts once, under its category.
• by_category[].categorystring
  Category slug.One of mechanisms, interventions, biomarkers, populations, ai-data, industry-policy
• by_category[].labelstring
  Display label.
• by_category[].papersinteger
  Shown papers whose category this is.
• by_topicarray of object
  Deprecated. The papers the site shows, by legacy topic, as /topics counts them.
• by_topic[].topicstring
  Topic slug.
• by_topic[].papersinteger
  Shown papers the topic filter matches.
• dailyarray of object
  The last 30 days, newest first.
• daily[].datedate
  UTC day.
• daily[].papersinteger
  Papers added.
• daily[].aginginteger
  Of which the site shows.
• daily[].preprintsinteger
  Of which preprints.
• coverageobject
  Date range of the corpus.
• coverage.first_indexeddate or null
  Earliest indexed_date in the corpus.
• coverage.last_indexeddate or null
  Latest indexed_date in the corpus.
• generated_atdate-time
  When these numbers were computed (UTC).

Pagination

Cursor pagination.

• next_cursorstring or null
  Pass as cursor to get the next page. Null on the last page.
• has_moreboolean
  Whether there is another page.
• limitinteger
  Page size used.

Error

Every error response has this shape.

• errorobject
  The error.
• error.statusinteger
  HTTP status.
• error.codestring
  Machine-readable code.One of missing_key, invalid_key, revoked_key, plan_required, rate_limited, invalid_parameter, not_found, unavailable, timeout, internal_error
• error.messagestring
  What went wrong, for a human.
• planstring
  On a 403 plan_required for the key's requests: the plan the key's owner is on now, such as free.
• ended_atdate-time or null
  On that 403: when the owner's paid plan (a trial, a gift or a subscription) ended; null if they never had one.
• upgrade_urlstring
  On that 403: where the owner pays for Plus (Pro, when Pro ended). The same key works again the moment they do. On a 429 for the daily allowance: where the plan with more requests is had. Absent where top_up_url is the next step.
• top_up_urlstring
  On that 403 or a 429 for the daily allowance, in place of upgrade_url where adding credit is the next step: where the owner adds credit. Past the allowance, the same key's requests then go on, paid from it (X-ARN-Credit: on).