niche · 0.0

Accessibility

Score 17.6 / 100 30 providers +12 via APIs 21 APIs Search apis.io →

Providers using this tag (30)

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

Strong 2 Solid coverage with minor gaps
BrowserStackAppiumApplicationAutomation1 API66.1LearnosityEducationAssessmentEdTechLearning12 APIs55.2
Developing 4 Usable, with meaningful gaps to close
Email on AcidEmail TestingEmail PreviewsEmail ClientSpam Testing1 API46.8VerbITCompanyAi Enterprise SoftwareTranscriptionCaptioning1 API46.6accessiBeCompanyWeb AccessibilityWCAG1 API45.4FreeTTSText-to-SpeechSpeech SynthesisAI-voiceAudio1 API42.6
Thin 5 Limited public surface area
VoiceittSpeech RecognitionSpeech-to-TextVoice1 API37.6Cypress.ioCompanyTestingEnd-to-End TestingTest Automation1 API37.3Friendly CaptchaCAPTCHABot DefensePrivacyProof of Work1 API35.9OlarkLive ChatCustomer-SupportChatbotsCustomer Engagement1 API31.1W3CStandardsWebWeb Standards1 API28.1
Emerging 13 Early or largely undocumented
Nutrient.ioDocumentsPDFDocument ProcessingE-Signature4 APIs24.9US AbilityOne CommissionFederal-GovernmentDisability EmploymentProcurementNon-Profit4 APIs22.5SkipprCompanyAi MlAI AgentsVoice Agents21.1EverlitAudioVideoSocialPodcasts2 APIs21.0U.S. Access BoardFederal-GovernmentDisabilityStandards20.9evincedCompanyTestingQuality Assurance20.3Angular MaterialAngularFrontendMaterial Design2 APIs19.7StarkCompanyComplianceDesign Tools19.6ReadSpeakerText-to-SpeechSpeechAudioVoice1 API17.8Design StandardsDesign StandardsDesign SystemsUX1 API14.4IncluyemeCompanyDisability InclusionEmploymentRecruiting14.0InstareadCompanyAudioText-to-SpeechPublishing12.7RyloCompanyConsumerCaptioning12.7
Minimal 6 Almost no public developer surface
NagishCompanyCaptioningTranscription9.1WisearCompanyNeural InterfaceBrain-Computer InterfaceWearables8.1Jade AutismCompanyEducationEdTechAutism7.4Echo LabsCompanyCaptioningAudio Description6.4User1stCompanyDigital AccessibilityWCAG6.2Right HearCompanyAssistive TechnologyIndoor Navigation5.0

APIs with this tag (21)

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 →

Strong 2 Solid coverage with minor gaps
BrowserStack Accessibility Testing APIThe BrowserStack Accessibility Testing API provides REST access to workflow analyzer, assisted tests, websi...66.1BrowserStack App Accessibility Testing APIThe BrowserStack App Accessibility REST API enables programmatic access to accessibility data for mobile ap...66.1
Developing 6 Usable, with meaningful gaps to close
Adobe Creative Suite Accessibility APIAuto-tag PDFs for accessibility compliance50.9Android Accessibility APIsFramework APIs for building accessible applications and custom accessibility services.49.8Architect of the Capitol Accessibility APIThe Accessibility API from Architect of the Capitol — 1 operation(s) for accessibility.47.2Webex Meeting Transcripts APIRetrieve and manage meeting transcripts including download endpoints for VTT and TXT transcript formats. Su...46.4accessFlow MCP ServerThe accessFlow Model Context Protocol server connects AI clients such as GitHub Copilot and Cursor directly...45.4FreeTTS REST APIREST/JSON API for text-to-speech synthesis, audio and SRT subtitle download, and voice listing. Uses x-api-...42.6
Thin 3 Limited public surface area
Panopto Accessibility APIAccessibility API35.6WAI-ARIAAccessible Rich Internet Applications (WAI-ARIA) is a W3C Recommendation defining a set of HTML attributes ...28.1Web Content Accessibility Guidelines (WCAG)WCAG is the international standard for web accessibility, providing guidelines for making web content more ...28.1
Emerging 10 Early or largely undocumented
Nutrient Accessibility APIAutomate PDF accessibility through cloud-based auto-tagging and validation to support compliance with WCAG ...24.9Anthology Ally REST APIREST API for Anthology Ally, the accessibility and learning effectiveness service.23.7Angular CDK APIThe Angular Component Dev Kit (CDK) provides behavior primitives for building custom accessible UI componen...19.7Angular Material Components APIAngular Material is a comprehensive UI component library implementing Material Design for Angular applicati...19.7Angular 14 CDK APIAngular 14 Component Dev Kit providing behavior primitives for building custom UI components including over...17.1Angular 15 CDK APIAngular 15 Component Dev Kit providing behavior primitives for building custom accessible UI components.17.1Angular 17 CDK APIAngular 17 Component Dev Kit providing behavior primitives for building custom accessible UI components.17.1Angular 18 CDK APIAngular 18 Component Dev Kit providing behavior primitives for building custom accessible UI components.17.1Angular 20 CDK APIAngular 20 Component Dev Kit providing behavior primitives for building custom accessible UI components wit...17.1BEP U.S. Currency Reader ProgramThe BEP U.S. Currency Reader Program provides free currency readers to blind and visually impaired individu...14.0

Companies reaching this through an API (12)

These companies publish an API, specification or operation carrying “Accessibility” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Adobe Creative Suite Android Angular 14 Angular 15 Angular 17 Angular 18 Angular 20 Architect of the Capitol Blackboard Bureau of Engraving and Printing Cisco Webex Meetings Panopto

Score breakdown

Frequency
46.5
log-scaled weighted occurrences
Breadth
0.8
spread across providers
Quality lift
28.6
mean composite of providers using it
Cohesion
0.0
strength of nearest seed neighbor

Related tags

WCAG 6 co-occurrences Captioning 5 co-occurrences

Where this tag comes from

Provider tag30
Api tag21
Openapi tag3
Openapi op tag4

Cohort brief

Auto-generated

The 29 providers in the APIs.io catalog tagged Accessibility, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers
29
all scored
Mean Kin Score
25.6
+1.6 vs catalog 24
Mean Agent Readiness
11.1
-1.3 vs catalog 12.4
Spread
5–66.1
median 21 · σ 15.9
How the 29 split by band
Exemplar 0Strong 2Developing 4Thin 5Emerging 12Minimal 6
Facet averages, against the whole catalog
FacetThis cohortCatalogDifferenceScored
Access Clarity 33 26.5 +6.5 29
Operational Transparency 18.6 14 +4.6 29
Developer Ergonomics 26.4 23.4 +3 29
Discoverability 63.4 61 +2.4 29
Contract Governance 7.4 6.5 +0.9 29
Contract Quality 16.8 20.1 -3.3 29

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
ArtifactThis cohortCatalogDifference
MCP server (any) 14% 10% +4
MCP server (first-party) 21% 13% +8
Agent Skills 0% 0% 0
OAuth scopes 0% 11% -11
Security 100% 96% +4
Arazzo workflows 0% 2% -2
Governance rules 10% 13% -3

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
  1. 1 BrowserStack 66.1
  2. 2 Learnosity 55.2
  3. 3 Email on Acid 46.8
  4. 4 VerbIT 46.6
  5. 5 accessiBe 45.4
  6. 6 FreeTTS 42.6
  7. 7 Voiceitt 37.6
  8. 8 Cypress.io 37.3
  9. 9 Friendly Captcha 35.9
  10. 10 Olark 31.1
Top by Agent Readiness
  1. 1 BrowserStack 44.1
  2. 2 accessiBe 44.1
  3. 3 Olark 42.1
  4. 4 US AbilityOne Commission 32.5
  5. 5 VerbIT 25.9
  6. 6 Email on Acid 22.3
  7. 7 Voiceitt 20.3
  8. 8 W3C 20
  9. 9 Friendly Captcha 19.8
  10. 10 Cypress.io 11.2
All 30 members of this roster resolve to a scored provider in the catalog.Generated from the catalog build of 20 September 2026, across 27620 providers, using the same computation served by the APIs.io cohort API. Briefs are published for rosters of 5 or more scored providers; below that a distribution is not meaningful.

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

curl for this page
This tag 
curl "https://apis.io/api/v1/tags/accessibility"
All tags 
curl "https://apis.io/api/v1/tags?limit=25"
As a scored cohort 
curl "https://apis.io/api/v1/cohorts/tag/accessibility"
The distribution (Pro) 
curl "https://apis.io/api/v1/cohorts/tag/accessibility/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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