emerging · -1.4 personamarketcapability personadomainschemaaction

API Documentation

Score 21.9 / 100 23 providers +3 via APIs 9 APIs Search apis.io →
Business capabilities this tag reaches
Developer Platform & API Ecosystem Management 1

Providers using this tag (23)

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

Exemplar 5 Complete, well-documented, and agent-ready
RedoclyArtificial IntelligenceAPI CatalogArazzo4 APIs81.1ScalarAPI ClientAPI ReferenceCode Generation2 APIs70.3PostmanEnvironmentFlowSpecificationWorkspace21 APIs78.0StoplightAPI DesignAPI GovernanceAsyncAPI1 API74.8ArchbeeDocumentation PlatformKnowledge BaseTechnical Writing11 APIs68.2
Strong 6 Solid coverage with minor gaps
TheneoDeveloper PortalDeveloper ToolsDocumentation Platform1 API60.5RoutebaseAPI lifecycle managementAPI DesignOpenAPI1 API64.3ReadMeDocumentationDeveloper HubAPI ReferencePortal2 APIs61.6MintlifyDocumentationDeveloper PortalMCP1 API59.9Bump.shAPI ChangelogAPI HubAPI Governance1 API56.0SmartBearAPI DesignAPI TestingContract Testing1 API55.9
Developing 2 Usable, with meaningful gaps to close
SpecwayDeveloper ToolsAI IntegrationInteractive Docs1 API39.4SwytchcodeAI / Agent Toolingagentic middlewareAPI IntegrationAPI Orchestration1 API43.6
Thin 6 Limited public surface area
ReadMe.ioCompanyDocumentationDeveloper Experience3 APIs39.0FernAPI LifecycleSDK GenerationClient Library1 API34.2Saga LabsCompanyDeveloper ToolsSoftware-as-a-Service1 API32.1ReadMe MetricsAPI AnalyticsAPI LogsAPI Metrics1 API31.4Stoplight ElementsDeveloper ToolsDocumentationInteractive Docs1 API28.3VoidenAPI DesignAPI TestingDeveloper Tools1 API29.9
Emerging 3 Early or largely undocumented
ReDocDeveloper ToolsDocumentationOpenAPI1 API25.3SlateDeveloper ToolsDocumentationMarkdown1 API24.1KonfigSDK GenerationClient LibraryDeveloper Tools5 APIs12.1
Minimal 1 Almost no public developer surface
Developer ExperienceAPI DesignDeveloper ExperienceDeveloper Portal2.6

APIs with this tag (8)

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 4 Complete, well-documented, and agent-ready
Stoplight ElementsElements is an open-source toolkit for building beautiful, interactive API documentation from OpenAPI speci...74.8Stoplight PlatformStoplight Platform is a SaaS collaborative API design and documentation management tool providing a visual ...74.8Kong API Documentation APIThe API Documentation API from Kong — 3 operation(s) for api documentation.71.8Entur API Documentation APIOpenAPI specification endpoints.69.6
Developing 1 Usable, with meaningful gaps to close
Swytchcode Documentation & Agent SurfacesSwytchcode's publicly consumable surfaces: developer documentation and a published llms.txt. The primary in...43.6
Emerging 3 Early or largely undocumented
ReDocReDoc is an open-source API documentation renderer for OpenAPI specifications, originally created by Rebill...25.3SlateSlate is an open-source static site generator for creating beautiful, three-panel API documentation from Ma...24.1OpenAPI SpecificationThe OpenAPI Specification (OAS) defines a standard, language-agnostic interface to RESTful APIs which allow...16.3

Companies reaching this through an API (3)

These companies publish an API, specification or operation carrying “API Documentation” 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.

Entur Kong REST

Score breakdown

Frequency
41.6
log-scaled weighted occurrences
Breadth
0.5
spread across providers
Quality lift
48.9
mean composite of providers using it
Cohesion
10.7
strength of nearest seed neighbor

Where this tag sits

Documentation broader Developer Tools broader

Related tags

API Design 7 co-occurrences Developer Portal 9 co-occurrences OpenAPI 16 co-occurrences API Testing 5 co-occurrences Documentation 12 co-occurrences CI/CD 5 co-occurrences Testing 5 co-occurrences Workspace 5 co-occurrences

Where this tag comes from

Api tag9
Provider tag23
Openapi tag2
Openapi op tag8

Work with this as data

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

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

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