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

Xquik Docs MCP ServerRead-only hosted MCP server for searching Xquik documentation.92.3 Veeva Vault MCPVeeva ships two first-party Model Context Protocol servers. The Vault Documentation MCP at https://docs.vee...75.0 Matomo ApiReference APIThe Matomo ApiReference API exposes 3 operations of the Matomo Reporting API (module `ApiReference`). Reads...67.3

Strong 18 Solid coverage with minor gaps

EGYM Documentation MCP ServerOfficial hosted Model Context Protocol server published by EGYM at developer.egym.com/mcp and documented on...66.0 GitLab Wikis APIThe GitLab Wikis API provides programmatic access to manage project wiki pages. It supports listing, creati...65.3 Factset Documentation APIThe Documentation API from Factset — 2 operation(s) for documentation.64.8 PostmanPostman is the single platform for collaborative API development used by 35+ million developers. It covers ...64.5 FieldPulse Docs MCP ServerFieldPulse serves an anonymous, publicly reachable Model Context Protocol server from its documentation hos...64.3 SmartLead Documentation MCP ServerSmartLead's remote Model Context Protocol server. tools/list answers anonymously with three documentation t...63.6 Dotdigital Marketing Developer Hub MCP ServerA remote MCP server that exposes the Dotdigital OpenAPI corpus and the developer-hub documentation to AI co...63.4 Hootsuite Developer Documentation MCPA remote Model Context Protocol endpoint served from Hootsuite's own ReadMe-hosted developer documentation ...63.3 Seekr Documentation MCP ServerA hosted, anonymous, read-only MCP server that gives an AI assistant direct access to the SeekrFlow documen...61.3 Autodesk ACC Photos APIThe ACC Photos API enables retrieval of project photos and videos, with querying and filtering capabilities...60.2 Autodesk Build Photos APIProvides a single, unified place to view and manage photos and videos in Autodesk Build. This is useful for...60.2 Criteo MCP ServersCriteo operates two remote Model Context Protocol servers. The documentation server at developers.criteo.co...59.0 emnify Documentation MCP ServerPublic MCP server for emnify documentation. Connect Claude Code, Cursor, or any MCP-aware client to query e...58.7 Decart Documentation MCP ServerA hosted, unauthenticated Model Context Protocol server at docs.platform.decart.ai/mcp that exposes the Dec...57.6 Tiger Docs MCP ServerA publicly reachable, anonymous Model Context Protocol server (server name pg-aiguide) serving hybrid seman...57.2 Knownwell documentation APIThe documentation API from Knownwell — 1 operation(s) for documentation.55.9 Treblle API DocumentationTreblle API Documentation automatically generates real-time API documentation from live API traffic and SDK...55.1 Amazon API Gateway Documentation APIOperations for managing API documentation54.5

Developing 29 Usable, with meaningful gaps to close

Optus SMS Suite SMS Gateway REST API v2High-volume asynchronous SMS API using UUID-based message tracking, mandatory delivery-receipt (DLR) callba...54.0 Sweep APISweep's public REST API — the contract behind the Sweep agentic workspace. 698 operations across 591 paths ...52.9 Semble Clinical APIGraphQL surface for clinical documentation and care pathways — consultations, clinical pathways, clinical r...52.2 Constructor Documentation MCP ServerRemote, anonymously reachable Model Context Protocol server published by Constructor that exposes documenta...51.4 MintlifyMintlify is a developer documentation platform that helps product and engineering teams create, maintain, a...51.1 Speakeasy DocsMDGenerate beautiful API documentation from OpenAPI specs. Automatic synchronization keeps docs current with ...51.0 Windmill documentation APIThe documentation API from Windmill — 1 operation(s) for documentation.50.6 Figment Documentation MCP ServerHosted Model Context Protocol server served from Figment's own documentation host at docs.figment.io/mcp, e...50.5 Dimension Labs Documentation MCPModel Context Protocol endpoint served from the Dimension Labs documentation host. Answers JSON-RPC 2.0; to...50.1 Emotive Knowledge Base MCP ServerAnonymous remote MCP server published by Emotive's Mintlify knowledge base. Three tools — documentation sea...50.0 Google Flutter Documentation APIPackage documentation endpoints49.5 Quadratic Documentation APIOpenAPI spec and Scalar viewer.49.0 Artlist Developer Docs MCP ServerHosted Model Context Protocol server for the Artlist Enterprise API documentation. Exposes a single anonymo...48.0 Xentral Documentation APIGet documentation about our data catalog, tables and columns.47.9 Umbra Canopy Documentation MCP ServerAnonymous, hosted Model Context Protocol server published by Umbra on the Canopy documentation host. Expose...46.8 AlgoSeek Documentation APIThe Documentation API from AlgoSeek — 5 operation(s) for documentation.45.4 Happyrobot Docs MCP ServerA hosted documentation-search MCP server on the docs host, discovered via RFC 9728 protected-resource metad...43.5 Trellix API ExplorerInteractive API documentation and testing tool for Trellix security products formerly under the FireEye bra...43.5 DreamFactory System APIThe DreamFactory System API provides administrative management capabilities for DreamFactory instances. It ...42.7 RapidAPI Documentation APIEndpoints for generating and managing API documentation from project definitions and endpoint configurations.42.0 Sideko Documentation APIPublish and manage API documentation sites generated from OpenAPI specifications, including on-brand themes...41.8 Nhost documentation APIAPI documentation41.4 GroundTruth Documentation MCP ServerModel Context Protocol endpoint served on the GroundTruth developer documentation host. It answers MCP JSON...41.2 Medusa Docs MCP ServerRemote Model Context Protocol server exposing the Medusa documentation to LLM-powered coding assistants - l...40.7 Scalar API ReferencesScalar API References renders modern, interactive API documentation from OpenAPI and Swagger specifications...40.3 Scalar DocsScalar Docs enables teams to create and publish developer documentation that stays in sync with their API a...40.3 Backstage Documentation APIThe Documentation API from Backstage — 2 operation(s) for documentation.40.0 AlayaCare Forms APIThe Forms API from AlayaCare — 1 operation(s) for forms.39.7 Ambassador Edge Stack Developer PortalThe Ambassador Edge Stack Developer Portal automatically detects and publishes API documentation, serving a...39.3

Thin 28 Limited public surface area

Hex.pm Documentation APIHexDocs package documentation.39.1 CNH Developer PortalThe CNH Developer Portal at develop.cnh.com hosts onboarding, authentication guidance, API guides, Postman ...39.0 Redocly RealmRedocly Realm is the comprehensive API lifecycle management platform that unifies Redoc, Revel, and Reef in...38.9 Redocly RedocRedoc is the open-source engine that renders API reference documentation from OpenAPI definitions with a th...38.9 Redocly ReuniteRedocly Reunite is the Git-connected collaboration and deployment surface for Realm. It prepares, deploys, ...38.9 Redocly RevelRedocly Revel is the external developer hub product. It renders Markdown, Markdoc, and React pages with mul...38.9 Keboola Documentation APIThe Documentation API from Keboola — 9 operation(s) for documentation.38.8 Kinetica Docs MCP ServerRead-only Model Context Protocol server over the published Kinetica documentation site, advertised from htt...38.7 Superscale Documentation MCP ServerAn anonymous Model Context Protocol server served from Superscale's own documentation host, providing searc...38.3 ReadMe API (v2)The current ReadMe API for managing your project programmatically — API keys, API definitions, reference/gu...37.2 FernFern transforms a single API source of truth (OpenAPI, AsyncAPI, Protobuf, OpenRPC, or the Fern Definition ...36.0 man.sr.ht GraphQL APIGraphQL API for creating and managing wiki and manual pages hosted on SourceHut using git-backed Markdown c...35.9 Dead Drop Documentation APIThe Documentation API from Dead Drop — 2 operation(s) for documentation.35.4 DeveloperHub Documentation APIThe Documentation API from DeveloperHub — 1 operation(s) for documentation.34.4 DeveloperHub Documentation PlatformDeveloperHub provides a hosted platform for creating developer documentation including API references auto-...34.4 Quantum Art Documentation APIThe Documentation API from Quantum Art — 1 operation(s) for documentation.33.6 what3words API Docs and OpenAPI RepositoryPublic repository hosting the OpenAPI specification, LLM files, and reference material for the what3words P...33.0 BNSF Waybill Management APIThe BNSF Waybill Management API enables customers to submit bills of lading with transit details and retrie...32.3 The Root Network Documentation MCP ServerRemote, unauthenticated Model Context Protocol server on the documentation host exposing three tools — docu...31.8 Context7 CLIThe Context7 CLI (ctx7) is a command-line tool for querying the Context7 index from the terminal. It provid...31.3 Stainless Docs PlatformThe Stainless Docs Platform combines your API reference, usage examples, and narrative guides into a single...31.2 Zudoku Configuration APIZudoku is an open-source, developer-first API documentation framework built by Zuplo. It uses a file-based ...31.2 Princess Beef Heavy IndustriesAt Princess Beef Heavy Industries (or as we call it pb33f), we build beautifully designed heavy-duty and en...31.0 Isometric MCP ServerIsometric ships a hosted Model Context Protocol (MCP) server that makes the Isometric Standard, proprietary...30.2 Service Cloud Knowledge APIAPI for managing knowledge articles, categories, and knowledge base operations.29.8 SlateSlate is an open-source static site generator for creating beautiful, three-panel API documentation from Ma...27.8 FumadocsFumadocs is an open-source documentation framework built on Next.js and React for creating fast, modern dev...27.7 Aerospike Documentation APIBuilt-in interactive documentation and OpenAPI specification26.3

Emerging 34 Early or largely undocumented

ReDocReDoc is an open-source API documentation renderer for OpenAPI specifications, originally created by Rebill...25.3 API BlueprintAPI Blueprint is a high-level API design language created by Apiary for designing and documenting web APIs....23.5 Apiary APIThe Apiary API provides programmatic access to manage API projects, documentation, and team collaboration. ...23.5 NextraNextra is the core Next.js plugin and library that provides MDX compilation, file-system page mapping, stat...23.5 Nextra Blog ThemeThe Nextra Blog Theme (`nextra-theme-blog`) provides a minimal, clean blog layout built on Nextra. It suppo...23.5 Nextra Docs ThemeThe Nextra Docs Theme (`nextra-theme-docs`) is a full-featured documentation theme built on top of the Next...23.5 Helium Documentation RepositorySource repository for docs.helium.com, covering the Mobile and IoT networks, tokens, wallets, and network-d...22.7 BookStack REST APIThe BookStack REST API provides programmatic access to manage the full content hierarchy of a BookStack ins...22.6 Cardless Docs MCP ServerA remote Model Context Protocol server published by Cardless at docs.cardless.com/mcp (Mintlify-hosted). It...22.5 OSPO GuidesA comprehensive collection of 23+ practitioner guides covering all aspects of running Open Source Program O...22.1 Semgrep DocumentationSource for the Semgrep product documentation site, including CLI reference, rule-writing guides, AppSec Pla...20.8 VacuumVacuum is the world's fastest OpenAPI linter written in Go. It processes API specifications at lightning sp...19.0 VitePress Runtime APIThe VitePress Runtime API provides Vue composition functions and helper utilities for use in custom themes,...19.0 VitePress Site ConfigurationThe VitePress site configuration system exported from .vitepress/config.[js|ts]. Defines all settings contr...19.0 University Library Data-Mining APIs GuideThe University of Bern Library publishes curated guidance on Application Programming Interfaces for text an...18.9 ApiNotesApiNotes generates interactive REST API documentation from OpenAPI or Swagger specifications with live endp...18.3 Swagger UISwagger UI renders OpenAPI specifications as interactive API documentation, allowing developers to explore ...18.2 Carepatron Notes and Documentation API (Modeled)Modeled product-area API for clinical notes, forms, intakes, templates, and AI-assisted documentation (the ...18.0 Booking APIsSuite of pre-booking, booking, and post-booking APIs covering rate requests, booking creation, amendments, ...17.7 Tempo DocumentationOfficial documentation for using Tempo - prompts and generation, working with the canvas, code editing, int...17.3 Handlebars.jsHandlebars provides the power necessary to let you build semantic templates effectively with no frustration...17.0 ExplainShell APIAPI for parsing and explaining shell commands in natural language.16.2 Almanac APIAlmanac API V1 (private beta) for programmatic access to an Almanac workspace — import and move files and f...16.1 DocusaurusDocusaurus is an open-source static site generator for documentation sites with React, MDX, versioning, i18...15.4 DapperDoxDapperDox is an open-source API documentation generator that renders beautiful, customizable reference docs...15.3 Rafay Product DocumentationRafay product documentation hub covering Kubernetes Operations Platform, MLOps, GPU PaaS, AI workloads, Tok...14.8 TherapyNotes Clinical Documentation API (Modeled)Modeled capability area for interactive clinical note templates - intake, progress notes, treatment plans, ...14.1 OpenAPI SpecificationThe OpenAPI Specification (OAS) defines a standard, language-agnostic interface for HTTP APIs. OpenAPI 3.x ...13.6 Zeroheight APIThe zeroheight REST API can be used to automate your design system workflow, make use of your content in ne...13.5 Konfig SDK Generation Platform (Sunset)Konfig's developer platform for generating, validating, and publishing SDKs, API reference documentation, a...13.2 CONTRIBUTING.md FormatThe CONTRIBUTING.md format is an unstructured Markdown convention that documents how to contribute to a pro...12.3 CHAOSS Metrics CatalogThe CHAOSS Metrics catalog is a community-maintained, structured reference of community-health metrics orga...12.1 DocsifyDocsify is a lightweight, no-build documentation site generator that turns Markdown files into a website on...11.9 FTC Developer PortalThe FTC Developer Portal is the central hub for developer documentation, data dictionaries, and access prog...11.8

Minimal 1 Almost no public developer surface

JoggrJoggr is a documentation platform purpose-built for software teams, helping engineering teams create and ma...10.1

Score breakdown

Frequency

64.0

log-scaled weighted occurrences

Breadth

4.5

spread across providers

Quality lift

42.3

mean composite of providers using it

Cohesion

12.1

strength of nearest seed neighbor

Where this tag comes from

Provider tag89

Api tag115

Openapi tag18

Openapi op tag44

Cohort brief

Auto-generated

The 164 providers in the APIs.io catalog tagged Documentation, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

164

all scored

Mean Kin Score

+14.3 vs catalog 20.7

Mean Agent Readiness

19.9

+10.2 vs catalog 9.7

Spread

3.2–92.3

median 35.8 · σ 17.6

How the 164 split by band

Exemplar 3Strong 20Developing 45Thin 39Emerging 46Minimal 11

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Contract Quality	37.5	17.5	+20	164
Developer Ergonomics	32.8	17.9	+14.9	164
Access Clarity	35.6	22.3	+13.3	164
Operational Transparency	24.3	11.3	+13	164
Discoverability	68.3	60.4	+7.9	164
Contract Governance	14.1	6.4	+7.7	164

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)	31%	16%	+15
MCP server (first-party)	22%	7%	+15
Agent Skills	0%	0%	0
OAuth scopes	16%	9%	+7
Security	93%	88%	+5
Arazzo workflows	6%	2%	+4
Governance rules	43%	13%	+30

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 Xquik 92.3
2 veeva 75
3 Matomo 67.3
4 EGYM 66
5 GitLab 65.3
6 Factset 64.8
7 Postman 64.5
8 FieldPulse 64.3
9 Confluence 63.7
10 Smartlead 63.6

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/documentation"

All tags

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

As a scored cohort

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

The distribution (Pro)

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

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no email required.

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A second provider on the same verified email joins the account you already have.

Documentation

Providers using this tag (164)

APIs with this tag (113)