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 3 Complete, well-documented, and agent-ready

Kong API Documentation APIThe API Documentation API from Kong — 3 operation(s) for api documentation.73.2 Stoplight ElementsElements is an open-source toolkit for building beautiful, interactive API documentation from OpenAPI speci...71.8 Stoplight PlatformStoplight Platform is a SaaS collaborative API design and documentation management tool providing a visual ...71.8

Developing 2 Usable, with meaningful gaps to close

AMCS Group API Documentation APIThe API Documentation API from AMCS Group — 1 operation(s) for api documentation.44.1 Swytchcode Documentation & Agent SurfacesSwytchcode's publicly consumable surfaces: developer documentation and a published llms.txt. The primary in...43.1

Thin 1 Limited public surface area

ReDocReDoc is an open-source API documentation renderer for OpenAPI specifications, originally created by Rebill...26.8

Emerging 2 Early or largely undocumented

SlateSlate is an open-source static site generator for creating beautiful, three-panel API documentation from Ma...25.6 OpenAPI SpecificationThe OpenAPI Specification (OAS) defines a standard, language-agnostic interface to RESTful APIs which allow...17.8

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.

AMCS Group Kong REST

Score breakdown

Frequency

41.2

log-scaled weighted occurrences

Breadth

0.5

spread across providers

Quality lift

58.8

mean composite of providers using it

Cohesion

8.8

strength of nearest seed neighbor

Where this tag comes from

Api tag8

Provider tag21

Openapi tag2

Openapi op tag7

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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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/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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API Documentation

Providers using this tag (21)

APIs with this tag (8)