canonical · 3.9

Research

Score 34.3 / 100 413 providers 239 APIs Search apis.io →

Variants seen in the corpus: Researchresearch

Providers using this tag (413)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 2 Complete, well-documented, and agent-ready

Plinth US Grants DataPhilanthropyGrantsNon-ProfitFoundations5 APIs70.5 Dun & BradstreetBusiness DataCompany DataD-U-N-S NumberCredit16 APIs67.9

Strong 9 Solid coverage with minor gaps

FactsetFinancialFinancial DataInvestment AnalyticsMarket Data460 APIs64.8 FactivaArtificial IntelligenceBusiness IntelligenceContent AggregationEnterprise Data11 APIs61.9 MetaAdvertisingAnalyticsArtificial IntelligenceMessaging19 APIs60.9 ExaArtificial IntelligenceSearchWeb SearchNeural Search19 APIs59.4 Google Quantum AIQuantum ComputingQuantumHardwareNISQ15 APIs59.3 University of WarwickUniversityHigher EducationEducation8 APIs58.3 University of Michigan-Ann ArborUniversityHigher EducationEducationPublic Research University7 APIs57.9 Sylvia APIRedditSocialDataSearch12 APIs57.5 Perplexity12 APIs56.3

Developing 57 Usable, with meaningful gaps to close

Thin 119 Limited public surface area

Emerging 155 Early or largely undocumented

Minimal 71 Almost no public developer surface

APIs with this tag (235)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 2 Complete, well-documented, and agent-ready

D&B Direct+ Research APIThe Research surface lets customers retrieve historical responses Direct+ has previously returned, supporti...67.9 Dun & Bradstreet Research APIRetrieve historical responses for audit and reconciliation.67.9

Strong 6 Solid coverage with minor gaps

Meta Ad Library APISearch and retrieve publicly visible ads across Meta platforms for transparency and research purposes via t...60.9 Meta Content Library APIProgrammatic access to the full public content archive from Facebook, Instagram, and Threads for qualified ...60.9 Exa Research APIThe Research API from Exa — 2 operation(s) for research.59.4 ReCirqReCirq is a research-grade collection of reproducible Cirq experiments and applications published by Google...59.3 WRAP OAI-PMH (Warwick Research Archive Portal)WRAP is the University of Warwick's institutional repository of research outputs, running EPrints 3.4.5 sel...58.3 Perplexity Responses APIThe Responses API (Agentic Research API) provides access to third-party frontier models from providers like...56.3

Developing 31 Usable, with meaningful gaps to close

UNSWorks Repository OAI-PMHOAI-PMH 2.0 metadata harvesting endpoint for UNSWorks. Fully anonymous. All six verbs were exercised live a...50.7 UNSWorks Repository REST API (DSpace 7.0)UNSWorks is the UNSW open-access institutional repository, running DSpace 7.0 on UNSW infrastructure and ad...50.7 Research APIAPI built on the Refinitiv Data Platform providing streamlined access to real-time and historical sell-side...50.6 S-Space OAI-PMH Repository InterfaceOAI-PMH 2.0 metadata harvesting for S-Space, the SNU Open Repository and Archive. Verified live and anonymo...50.6 Yutori Research APIThe Research API from Yutori — 2 operation(s) for research.50.1 Infoblox Dossier APIThreat research API that provides contextual information from multiple sources simultaneously for a given i...49.6 Tadeus Integration APIREST API to create interview templates and campaigns, invite participants singly or in bulk, create anonymo...49.1 ANU Open Research OAI-PMHOAI-PMH 2.0 metadata harvesting interface for ANU's Open Research institutional repository. Confirmed live:...48.8 TweetAPI Hosted MCP ServerHosted remote HTTP MCP server providing current TweetAPI docs and read-only live public-data tools. Uses OA...48.3 TweetAPI tw-v2 REST APIREST API for public Twitter/X data with X-API-Key auth, JSON responses, and 76 documented endpoints across ...48.3 Gemini Deep Research APIAgentic research capability powered by the Interactions API that autonomously plans, executes, and synthesi...46.0 Morningstar AI Insights APIAsynchronous generative summaries and insights over Morningstar data and research, available in Americas an...46.0 Morningstar Investment Analysis APIsDynamic Services investment-analysis endpoints - securities data (US and global ecint), screening, autocomp...46.0 Refinitiv News APIAccess to real-time and historical news headlines and stories from Reuters and other sources.42.9 GandalfGandalf is Lakera's free interactive game that teaches prompt injection by challenging players to extract a...42.1 Delphi Epidata APIPublic, anonymously accessible HTTP/JSON API operated by the Delphi research group at Carnegie Mellon Unive...41.9 UC Research Repository DSpace REST APIDSpace 7 REST API backing the UC Research Repository, providing programmatic access to communities, collect...41.8 UC Research Repository OAI-PMHOAI-PMH 2.0 metadata harvesting interface for the UC Research Repository, a DSpace 7 institutional reposito...41.8 Pure Research Portal OAI-PMHOAI-PMH metadata service for the EUR & Erasmus MC Research Information Portal, which runs on Elsevier Pure ...41.7 RePub OAI-PMH Metadata FeedOAI-PMH 2.0 metadata harvesting interface for RePub, the Erasmus University institutional repository. Verif...41.7 Health Research Data Catalogue APIRetrieve metadata about NHS health datasets suitable for publication in health research catalogues. Enables...41.6 EPFL Infoscience Institutional RepositoryInfoscience is EPFL's institutional repository and CRIS, self-hosted on EPFL infrastructure and running DSp...41.5 Tavily Research APIThe Research API from Tavily — 1 operation(s) for research.41.4 Tavily Web APIThe Tavily Web API offers a unified set of endpoints for AI agents to search the web, extract page content,...41.4 Adelaide Research & Scholarship REST APIDSpace 7.6.1 REST (HAL/JSON) API for the University of Adelaide institutional repository "Adelaide Research...41.3 Figshare OAI-PMH (Manara - HBKU Research)Figshare exposes an OAI-PMH v2.0 metadata harvesting endpoint that provides access to public article metada...41.0 UCSF Profiles JSON APIOpen, unauthenticated JSON API (v2) over UCSF Profiles, the research-networking platform run by UCSF CTSI, ...41.0 HIT Research Portal RSS FeedsRSS 2.0 feeds (with Dublin Core extensions) from the HIT Elsevier Pure research portal. The research output...40.6 ScholarBank@NUS DSpace REST APIThe HAL-style REST API of ScholarBank@NUS, the university's institutional repository — communities, collect...39.8 DiVA Institutional Repository (OAI-PMH)Stockholm University participates in DiVA (Academic Archive On-line), the shared Swedish publishing system ...39.5 Linkup Research APIThe Research API from Linkup — 2 operation(s) for research.39.5

Thin 75 Limited public surface area

Events.com Research APIThe Research API from Events.com — 2 operation(s) for research.39.2 Inflammatix Site Content APIThe public, anonymously-readable WordPress REST content API served by inflammatix.com. Alongside the standa...39.0 Taylor's e-Repository DSpace REST APIThe Taylor's e-Repository runs on DSpace CRIS (cris-2022.01.01) and exposes a HATEOAS HAL+JSON REST API at ...38.8 Deakin Research Online (DRO) OAI-PMHDeakin Research Online is the university's research repository, now hosted on the figshare platform. It exp...38.2 Moonshot Open-Weights ReleasesOpen-weight Kimi model releases (for example prior Kimi K1 / K2 checkpoints) published under the MoonshotAI...38.0 Reka Research APIResearch chat completions with web search.37.9 HAL Search / REST APIThe national HAL open-archive REST and Search API provides programmatic query access to publication metadat...37.4 HAL-ENS Open Archive (OAI-PMH)HAL-ENS is the open archive hosting the scientific production of ENS Paris researchers, teacher-researchers...37.4 Withings Advanced Research APIThe Withings Advanced Research API provides access to detailed and granular health biomarker data for acade...37.3 Utrecht University Repository OAI-PMHOAI-PMH metadata harvesting interface for the Utrecht University Library DSpace institutional repository, e...37.0 Utrecht University research APIThe research API from Utrecht University — 13 operation(s) for research.37.0 CityUHK Scholars OAI-PMHPublic OAI-PMH (Open Archives Initiative Protocol for Metadata Harvesting, version 2.0) endpoint for CityUH...36.6 Research Data Archive OAI-PMHOAI-PMH 2.0 metadata harvesting endpoint for the University of Bath Research Data Archive, an EPrints 3.4 i...36.5 Research Data Archive REST/FeedsEPrints REST/XML interface and Atom/RSS feeds for the University of Bath Research Data Archive, exposing da...36.5 Research Portal (Pure) OAI-PMHOAI-PMH 2.0 metadata harvesting interface for the University of Bath Open Access Repository, served by the ...36.5 TechPortRESTful web services to make NASA technology project data available in a machine readable format.36.5 Cristin Research Information APICristin is the Norwegian national Current Research Information System. NTNU's research output, persons, pro...36.4 NVA Nasjonalt Vitenarkiv APIThe National Research Archive (Nasjonalt vitenarkiv, NVA) is the Sikt operated open research archive that n...36.4 Pure OAI-PMH Metadata ServiceOAI-PMH metadata harvesting service for the Aarhus University Pure research portal, used to expose and harv...36.3 Chalmers Research OAI-PMHOAI-PMH 2.0 metadata harvesting interface for the Chalmers Research portal (research.chalmers.se), covering...36.2 Elsevier Engineering Village APIEngineering Village APIs provide programmatic access to engineering research literature, indexed publicatio...36.0 Elsevier SciVal APIThe SciVal API gives access to a comprehensive set of metrics for researchers (Scopus Author profiles) and ...36.0 Elsevier Scopus APIsScopus delivers a comprehensive view of the world of research, allowing tracking, analysis, and visualizati...36.0 Lund University Research Portal (LUCRIS / Pure)Public external interface to the LUCRIS research information system, built on Elsevier Pure, covering resea...36.0 Norse World REST-APIThe Norse World REST-API, part of the Norse World research infrastructure at Uppsala University's Departmen...35.8 King's Research Portal (Pure) OAI-PMHThe standards-based harvesting interface for the King's Research Portal, the front end of Pure — how King's...35.2 OSTI DOE PAGES APIThe DOE PAGES (Public Access Gateway for Energy and Science) REST API provides programmatic access to publi...35.2 eScholarship Repository and OAI-PMH (California Digital Library tenant)eScholarship is the University of California's open-access publishing platform and institutional repository...35.0 VU Research Portal OAI-PMHOAI-PMH 2.0 metadata harvesting endpoint for the Vrije Universiteit Amsterdam Repository, served by the ins...35.0 eCommons Institutional Repository (DSpace REST + OAI-PMH) — tenanteCommons is Cornell University Library's institutional repository: Cornell's content, Cornell's DOIs, Corne...34.7 Advantage Solutions Corporate Content API (WordPress REST)The publicly readable content API of the Advantage Solutions corporate site. youradv.com runs WordPress on ...34.4 CU Digital Repository OAI-PMHThe Charles University Digital Repository (Digitalni repozitar UK), a DSpace-based institutional repository...34.4 CU Research Publications Repository OAI-PMHThe Charles University Research Publications Repository is a DSpace-based institutional archive where staff...34.4 LINDAT NameTag APIPublic REST API for named-entity recognition and tokenization (NameTag) operated by the Institute of Formal...34.4 ACF Data and Research PortalACF's primary data and research portal providing access to program data, statistical reports, and research ...34.2 DTU Orbit Research Database (Pure)DTU Orbit is DTU's research information database (publications, projects, activities, researcher and depart...34.2 National Data Archive on Child Abuse and NeglectNDACAN is the central repository for datasets related to child abuse, neglect, and child welfare at Cornell...34.2 Goldman Sachs Content Services APIPart of the Marquee developer platform, the Content Services API lets institutional clients programmaticall...34.1 Goldman Sachs Data Services APIThe Data Services API integrates Goldman Sachs data and insights into client tools and processes, exposing ...34.1 TU/e Research Portal OAI-PMHOAI-PMH metadata-harvesting interface for the TU/e Research Portal, powered by Elsevier Pure. It exposes re...34.0 Research Repository UCD (DSpace OAI-PMH / REST)Research Repository UCD is the institution's green open-access scholarly repository, built on DSpace-CRIS. ...33.9 Padua@Research OAI-PMHPadua@Research (Padua Research Archive) is an EPrints-based institutional repository of the University of P...33.6 UG Research Portal OAI-PMH (Pure)OAI-PMH metadata-harvesting endpoint over the University of Groningen research portal, powered by Elsevier ...33.6 AACT DatabaseAACT (Aggregate Analysis of ClinicalTrials.gov) is a publicly available relational database of all Clinical...33.1 PURR OAI-PMH Metadata APIThe Purdue University Research Repository (PURR) exposes an OAI-PMH endpoint for harvesting research datase...33.1 Terminus Protein Prediction APITerminus is a UNIGE-developed prediction service for protein N-terminal modifications (initial methionine c...33.1 GT Digital Repository OAI-PMHPublic OAI-PMH 2.0 metadata harvesting interface for the Georgia Tech Digital Repository (DSpace 7), the in...33.0 GT Digital Repository REST APIDSpace 7 REST API for the Georgia Tech Digital Repository, providing programmatic access to communities, co...33.0 Queen's University Belfast Research Portal (Pure OAI-PMH)OAI-PMH metadata harvesting endpoint for the Queen's University Belfast Research Portal, the institutional ...32.5 ACM Digital Library Search APIThe ACM Digital Library search endpoint allows programmatic querying of computing literature across ACM's f...32.4 Pure Research Portal OAI-PMHOAI-PMH (Open Archives Initiative Protocol for Metadata Harvesting) endpoint for the University of St Andre...32.0 St Andrews Research Repository OAI-PMHOAI-PMH endpoint for the DSpace-based St Andrews Research Repository, the institution's open-access reposit...32.0 AmeriCorps Open Data SODA APIThe AmeriCorps Open Data portal provides programmatic access to AmeriCorps research, evaluation, and progra...31.8 CIONIC Research Platform APIThe collections service of the CIONIC research platform. Path-versioned REST endpoints under /c/v{version}/...31.7 TSpace DSpace REST API — tenant on ScholarisThe DSpace 8.4 HAL REST API serving TSpace. Verified live on 2026-08-19: the root document returns dspaceNa...31.3 TSpace Institutional Repository (OAI-PMH) — tenant on ScholarisOAI-PMH 2.0 harvesting endpoint for TSpace, the University of Toronto Libraries institutional research repo...31.3 Open Access Repository OAI-PMHOAI-PMH metadata harvesting feed for the Open Access Te Herenga Waka—Victoria University of Wellington rese...31.1 NCI Clinical Trials Search APIRESTful API that lets developers build applications, search tools, and digital platforms over NCI-supported...31.0 Messari Research APIThe Research API from Messari — 3 operation(s) for research.30.5 DRUM Institutional RepositoryDRUM (Digital Repository at the University of Maryland) is the UMD Libraries' DSpace-based institutional re...30.3 ePrints@IISc OAI-PMHePrints@IISc is the open-access institutional repository of IISc research publications, established in 2002...30.3 Dimensions Analytics APIThe Dimensions Analytics API provides programmatic access to the Dimensions research data platform via the ...30.2 Maastricht University Research Portal (Pure) OAI-PMHOAI-PMH metadata harvesting endpoint for the Maastricht University Pure (Elsevier) current research informa...30.0 LabVantage ELN (Electronic Lab Notebook) APILabVantage ELN (Electronic Lab Notebook) APIs enable experiment data capture, protocol management, research...29.3 KnightFrank Api v3The corporate search service behind knightfrank.com and knightfrank.co.uk, titled "KnightFrank Api v3" by i...29.1 You.com Finance Research APIThe Finance Research API specializes in financial intelligence, returning sourced answers to investment and...29.0 You.com Research APIThe Research API orchestrates multi-step web research to produce ranked, cited responses to complex questio...29.0 Boosted.ai API (Alfa)The Boosted.ai (Alfa) API delivers personalized, autonomous market insights and conversational investment r...28.6 QSpace Repository API (DSpace)QSpace is Queen's University Library's open-access institutional repository built on DSpace, hosting theses...28.6 Taylor & Francis Text and Data Mining APITaylor & Francis provides API-based text and data mining access to subscribed and open-access content for n...28.5 Bloomberg Intelligence Research APIAccess to Bloomberg Intelligence research reports, analyst insights, industry analysis, and company researc...28.2 Aladdin Studio Research APIInvestment research data and analyst ratings27.5 Researcher Metadata Database (RMD) APIPenn State University Libraries' faculty and research metadata service, maintained with OSVPR and West Aret...27.0 USGS ScienceBase Catalog APIThe USGS ScienceBase Catalog API provides access to USGS scientific data management infrastructure, enablin...27.0 Tobacco Research Datasets APIAccess tobacco prevention advertising and smokefree campaign research datasets examining advertising influe...26.8

Emerging 115 Early or largely undocumented

Minimal 6 Almost no public developer surface

Federal Administrative Adjudication DatabaseA joint project between ACUS and Stanford Law School, the Federal Administrative Adjudication Database prov...10.4 Vertex Clinical Trials Data SharingVertex Pharmaceuticals provides qualified researchers with access to clinical trial data through a formal d...10.0 National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)The National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS) supports research into th...8.4 BMS Study ConnectBMS Study Connect is a clinical trial recruitment and information platform enabling patients and caregivers...7.9 Visage 7 AI Open APIOpen API for integrating third-party and customer AI algorithms into the Visage 7 platform and Visage AI Ac...6.7 Aon InsightsAon Insights publishes research, reports, and the "On Aon" podcast across Trade, Technology, Weather, and W...4.6

Score breakdown

Frequency

76.0

log-scaled weighted occurrences

Breadth

11.3

spread across providers

Quality lift

29.4

mean composite of providers using it

Cohesion

44.2

strength of nearest seed neighbor

Where this tag comes from

Provider tag354

Api tag239

Openapi tag10

Openapi op tag30

Cohort brief

Auto-generated

The 413 providers in the APIs.io catalog tagged Research, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

413

all scored

Mean Kin Score

25.5

+4.8 vs catalog 20.7

Mean Agent Readiness

+3.3 vs catalog 9.7

Spread

2.2–70.5

median 22.9 · σ 13.9

How the 413 split by band

Exemplar 2Strong 9Developing 57Thin 119Emerging 155Minimal 71

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Contract Quality	26.8	17.5	+9.3	413
Operational Transparency	17.6	11.3	+6.3	413
Access Clarity	27.3	22.3	+5	413
Discoverability	64.9	60.4	+4.5	413
Contract Governance	7.3	6.4	+0.9	413
Developer Ergonomics	15.7	17.9	-2.2	413

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes

Artifact	This cohort	Catalog	Difference
MCP server (any)	8%	16%	-8
MCP server (first-party)	5%	7%	-2
Agent Skills	0%	0%	0
OAuth scopes	11%	9%	+2
Security	98%	88%	+10
Arazzo workflows	1%	2%	-1
Governance rules	31%	13%	+18

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for tags

7 MCP tools reach this

find_tagsBrowse and filter every tag in the catalog.
get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools

Call it yourself

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This tag

curl "https://apis.io/api/v1/tags/research"

All tags

curl "https://apis.io/api/v1/tags?limit=25"

As a scored cohort

curl "https://apis.io/api/v1/cohorts/tag/research"

The distribution (Pro)

curl "https://apis.io/api/v1/cohorts/tag/research/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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