API Evangelist Trend Report
The State of API Documentation
29 API documentation vendors and projects scored — the market whose entire job is making APIs legible, measured on whether its own products are. Developer ergonomics is the cohort's weakest facet at 25.6, in the market that sells developer experience. Four vendors sell MCP servers and AI search to their customers; none of the 29 runs one. One provider in 29 clears the Exemplar line, by three tenths of a point.
Read the report →
$500
· PDF + Word + AI data bundle, instant download
API Documentation
Grouped by Kin Score band and ranked by composite score within each, with the separate agent-readiness score alongside. Click the scores on any row to open the full facet and dimension breakdown behind both numbers, and click again to close it.
search
29 providers
Strong 3 56 – 65.9 Solid contracts, transparent operations, and an easy start.
1
ReadMe Strong agent aware Hosted Documentation Platforms
ReadMe is a developer hub platform that helps companies design, document, and operate their APIs. The platform combines hosted API reference (OpenAPI-driven)...
Composite
58.7
Agent
32.0
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 58.7/100 · strong
Contract Quality
16.3 / 25
Developer Ergonomics
13.0 / 20
Commercial Clarity
12.1 / 20
Operational Transparency
5.5 / 13
Governance
4.5 / 12
Discoverability
7.2 / 10
Agent readiness — 32/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface derived
1.5 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
2
SwaggerHub Strong agent aware Hosted Documentation Platforms
SwaggerHub is SmartBear's enterprise collaborative API design and documentation platform built around the OpenAPI specification. It provides tools for design...
Composite
57.9
Agent
30.6
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 57.9/100 · strong
Contract Quality
16.3 / 25
Developer Ergonomics
11.3 / 20
Commercial Clarity
12.1 / 20
Operational Transparency
3.8 / 13
Governance
7.0 / 12
Discoverability
7.4 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
3
Mintlify Strong agent ready Hosted Documentation Platforms
Mintlify is an AI-native intelligent documentation platform designed for the next generation of technical documentation, combining beautiful out-of-the-box d...
Composite
57.2
Agent
35.1
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 57.2/100 · strong
Contract Quality
13.4 / 25
Developer Ergonomics
9.6 / 20
Commercial Clarity
13.7 / 20
Operational Transparency
7.2 / 13
Governance
7.0 / 12
Discoverability
6.3 / 10
Agent readiness — 35/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
5 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
Developing 8 42 – 55.9 Real signal across most facets with visible, nameable gaps.
4
Document360 Developing agent aware Hosted Documentation Platforms
Document360 is a SaaS knowledge base platform that allows teams to create, manage, and publish self-service knowledge bases and documentation portals. It sup...
Composite
52.2
Agent
30.6
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 52.2/100 · developing
Contract Quality
18.1 / 25
Developer Ergonomics
7.8 / 20
Commercial Clarity
11.1 / 20
Operational Transparency
1.7 / 13
Governance
7.0 / 12
Discoverability
6.5 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
5
Theneo Developing agent ready Hosted Documentation Platforms
Beautiful, up-to-date docs without the effort. Theneo is an AI-native API documentation and developer portal platform that auto-generates interactive docs fr...
Composite
52.0
Agent
37.8
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 52.0/100 · developing
Contract Quality
18.5 / 25
Developer Ergonomics
6.5 / 20
Commercial Clarity
9.5 / 20
Operational Transparency
3.1 / 13
Governance
7.0 / 12
Discoverability
7.4 / 10
Agent readiness — 38/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
8.0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
6
Bump.sh Developing agent ready Hosted Documentation Platforms
Bump.sh is "the modern API doc platform" — automatic, diff-aware documentation for OpenAPI and AsyncAPI specifications, plus a managed Model Context Protocol...
Composite
50.9
Agent
46.4
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 50.9/100 · developing
Contract Quality
16.8 / 25
Developer Ergonomics
6.5 / 20
Commercial Clarity
7.9 / 20
Operational Transparency
5.8 / 13
Governance
5.7 / 12
Discoverability
8.2 / 10
Agent readiness — 46/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
8.0 / 8
Request/Response Examples partial
3.5 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
6 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
7
Archbee Developing agent ready Hosted Documentation Platforms
Archbee is a documentation platform for software teams that enables creating, managing, and publishing technical documentation, API references, and knowledge...
Composite
47.7
Agent
44.1
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 47.7/100 · developing
Contract Quality
6.1 / 25
Developer Ergonomics
7.8 / 20
Commercial Clarity
13.7 / 20
Operational Transparency
3.8 / 13
Governance
8.3 / 12
Discoverability
8.2 / 10
Agent readiness — 44/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
8.0 / 8
Request/Response Examples
7.0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
8
Redocly Developing human only Hosted Documentation Platforms
Redocly is a company that specializes in API documentation and governance tooling. Their platform helps organizations create, manage, and publish API documen...
Composite
45.2
Agent
3.2
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 45.2/100 · developing
Contract Quality
6.1 / 25
Developer Ergonomics
5.7 / 20
Commercial Clarity
12.1 / 20
Operational Transparency
7.2 / 13
Governance
7.0 / 12
Discoverability
7.2 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
9
Scalar Developing agent ready API Reference Renderers
Scalar is an open-source API platform built around the OpenAPI standard. It provides API documentation (API References), an offline-first API client, a centr...
Composite
45.1
Agent
39.4
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 45.1/100 · developing
Contract Quality
13.8 / 25
Developer Ergonomics
5.2 / 20
Commercial Clarity
6.8 / 20
Operational Transparency
3.8 / 13
Governance
8.3 / 12
Discoverability
7.2 / 10
Agent readiness — 39/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
8.0 / 8
Request/Response Examples documented
1.8 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
10
GitBook Developing agent aware Hosted Documentation Platforms
GitBook is a platform that allows users to create, publish, and share online books and documentation. It provides a simple and user-friendly interface for wr...
Composite
42.5
Agent
32.0
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 42.5/100 · developing
Contract Quality
20.7 / 25
Developer Ergonomics
2.6 / 20
Commercial Clarity
5.3 / 20
Operational Transparency
1.7 / 13
Governance
5.7 / 12
Discoverability
6.5 / 10
Agent readiness — 32/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface derived
1.5 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
11
Stoplight Developing human only Hosted Documentation Platforms
Stoplight is a collaborative, design-first API platform providing a visual editor for OpenAPI specifications, interactive hosted documentation, automatic moc...
Composite
42.2
Agent
3.2
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 42.2/100 · developing
Contract Quality
3.2 / 25
Developer Ergonomics
8.3 / 20
Commercial Clarity
12.1 / 20
Operational Transparency
5.1 / 13
Governance
7.0 / 12
Discoverability
6.5 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
Thin 9 28 – 41.9 Limited machine-readable signal beyond documentation a human can read.
12
Doctave Thin agent aware Hosted Documentation Platforms
Doctave is a platform for building modern technical documentation sites. Bring your guides, your API references and SDK documentation, and build developer po...
Composite
41.0
Agent
30.6
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 41.0/100 · thin
Contract Quality
17.2 / 25
Developer Ergonomics
4.3 / 20
Commercial Clarity
5.3 / 20
Operational Transparency
1.7 / 13
Governance
7.0 / 12
Discoverability
5.6 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
13
Stoplight Elements Thin agent aware API Reference Renderers
Stoplight Elements is an open-source API documentation component library for rendering OpenAPI specifications interactively. It provides embeddable React and...
Composite
40.7
Agent
21.6
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 40.7/100 · thin
Contract Quality
15.7 / 25
Developer Ergonomics
5.2 / 20
Commercial Clarity
3.2 / 20
Operational Transparency
3.8 / 13
Governance
7.0 / 12
Discoverability
5.9 / 10
Agent readiness — 22/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
14
Zudoku Thin agent ready API Reference Renderers
Zudoku is an open-source, developer-first platform for creating clean, consistent API documentation built on a modern stack including React, TypeScript, and ...
Composite
40.4
Agent
34.2
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 40.4/100 · thin
Contract Quality
16.6 / 25
Developer Ergonomics
5.2 / 20
Commercial Clarity
3.2 / 20
Operational Transparency
1.0 / 13
Governance
7.0 / 12
Discoverability
7.4 / 10
Agent readiness — 34/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
4 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
15
DeveloperHub Thin agent aware Hosted Documentation Platforms
DeveloperHub is a hosted developer documentation platform that enables teams to create beautiful API references, user guides, and knowledge bases. It feature...
Composite
39.1
Agent
30.6
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 39.1/100 · thin
Contract Quality
13.8 / 25
Developer Ergonomics
5.2 / 20
Commercial Clarity
12.1 / 20
Operational Transparency
1.7 / 13
Governance
0.0 / 12
Discoverability
6.3 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
MCP Server
0 / 12
Machine-Readable Auth
10 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
16
RapiDoc Thin agent aware API Reference Renderers
RapiDoc is a web component that allows developers to easily integrate interactive documentation for their APIs. It provides a user-friendly interface for exp...
Composite
38.0
Agent
24.8
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 38.0/100 · thin
Contract Quality
16.7 / 25
Developer Ergonomics
3.9 / 20
Commercial Clarity
3.2 / 20
Operational Transparency
1.0 / 13
Governance
8.3 / 12
Discoverability
5.0 / 10
Agent readiness — 25/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples partial
3.5 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
17
Fumadocs Thin agent aware Docs-as-Code Static Site Generators
Fumadocs is a modern documentation framework built on Next.js for building developer documentation sites. It provides a complete set of composable packages f...
Composite
33.8
Agent
28.8
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 33.8/100 · thin
Contract Quality
15.1 / 25
Developer Ergonomics
2.2 / 20
Commercial Clarity
2.6 / 20
Operational Transparency
1.4 / 13
Governance
7.0 / 12
Discoverability
5.6 / 10
Agent readiness — 29/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
8.0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
18
Slate Thin human only API Reference Renderers
Slate is an open-source tool for creating beautiful, three-panel API documentation from Markdown. Built on Ruby and Middleman, Slate renders a left-side navi...
Composite
31.6
Agent
4.7
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 31.6/100 · thin
Contract Quality
4.4 / 25
Developer Ergonomics
6.1 / 20
Commercial Clarity
3.2 / 20
Operational Transparency
3.8 / 13
Governance
8.3 / 12
Discoverability
5.9 / 10
Agent readiness — 5/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples documented
1.8 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
19
ReDoc Thin agent aware API Reference Renderers
ReDoc is an open-source API documentation renderer for OpenAPI specifications by Redocly. It generates a responsive three-panel documentation layout from Ope...
Composite
31.2
Agent
10.4
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 31.2/100 · thin
Contract Quality
4.4 / 25
Developer Ergonomics
7.0 / 20
Commercial Clarity
3.2 / 20
Operational Transparency
3.8 / 13
Governance
7.0 / 12
Discoverability
5.9 / 10
Agent readiness — 10/100 · agent aware
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
8.0 / 8
Dry-Run / Simulate Mode
0 / 4
20
Nextra Thin human only Docs-as-Code Static Site Generators
Nextra is an open-source, Next.js-based documentation framework for building fast, modern, and beautifully styled documentation sites. It extends Next.js wit...
Composite
30.0
Agent
3.2
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 30.0/100 · thin
Contract Quality
5.7 / 25
Developer Ergonomics
3.9 / 20
Commercial Clarity
3.2 / 20
Operational Transparency
3.8 / 13
Governance
7.0 / 12
Discoverability
6.5 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
Emerging 8 13 – 27.9 More than an index entry but still mostly links rather than artifacts.
21
ApiNotes Emerging human only Hosted Documentation Platforms
ApiNotes is an interactive API documentation tool that generates developer portals with live endpoint testing, code examples in multiple languages, and share...
Composite
24.9
Agent
3.2
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 24.9/100 · emerging
Contract Quality
5.7 / 25
Developer Ergonomics
2.2 / 20
Commercial Clarity
3.2 / 20
Operational Transparency
1.0 / 13
Governance
7.0 / 12
Discoverability
5.9 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
22
Apiary Emerging human only Hosted Documentation Platforms
Apiary is an API design and documentation platform, now part of Oracle Cloud Infrastructure. With 486,000+ users and 591,000+ APIs managed, it uses API Bluep...
Composite
24.8
Agent
3.2
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 24.8/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
3.0 / 20
Commercial Clarity
12.1 / 20
Operational Transparency
3.8 / 13
Governance
0.0 / 12
Discoverability
5.9 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
23
Swagger Emerging human only API Reference Renderers
Swagger is an open-source framework by SmartBear for designing, building, documenting, and consuming RESTful APIs using the OpenAPI Specification. Originally...
Composite
24.6
Agent
3.2
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 24.6/100 · emerging
Contract Quality
3.2 / 25
Developer Ergonomics
3.0 / 20
Commercial Clarity
3.2 / 20
Operational Transparency
1.7 / 13
Governance
7.0 / 12
Discoverability
6.5 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
24
VitePress Emerging human only Docs-as-Code Static Site Generators
VitePress is a Vite and Vue powered static site generator widely used for developer documentation. It converts Markdown content into fast, beautiful document...
Composite
24.5
Agent
3.2
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 24.5/100 · emerging
Contract Quality
2.0 / 25
Developer Ergonomics
1.7 / 20
Commercial Clarity
3.2 / 20
Operational Transparency
1.7 / 13
Governance
8.3 / 12
Discoverability
7.6 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
25
MkDocs Emerging human only Docs-as-Code Static Site Generators
MkDocs is a fast, simple, and beautiful static site generator designed for building project documentation from Markdown source files. Written in Python, it r...
Composite
18.6
Agent
0.0
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 18.6/100 · emerging
Contract Quality
2.0 / 25
Developer Ergonomics
3.9 / 20
Commercial Clarity
0.0 / 20
Operational Transparency
0.7 / 13
Governance
7.0 / 12
Discoverability
5.0 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
0 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
26
Docusaurus Emerging human only Docs-as-Code Static Site Generators
Docusaurus is an open-source static site generator built by Meta for creating documentation websites. Powered by React, it supports MDX, versioning, internat...
Composite
15.9
Agent
3.2
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 15.9/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
3.0 / 20
Commercial Clarity
3.2 / 20
Operational Transparency
3.8 / 13
Governance
0.0 / 12
Discoverability
5.9 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
27
DapperDox Emerging human only API Reference Renderers
DapperDox is an open-source API documentation generator that creates beautiful, customizable reference documentation from OpenAPI specifications. It supports...
Composite
15.8
Agent
3.2
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 15.8/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
1.7 / 20
Commercial Clarity
3.2 / 20
Operational Transparency
3.8 / 13
Governance
1.2 / 12
Discoverability
5.9 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
28
Zeroheight Emerging human only Hosted Documentation Platforms
The zeroheight REST API can be used to automate your design system workflow, make use of your content in new ways and, leverage external tools to empower you...
Composite
13.6
Agent
3.2
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 13.6/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
3.0 / 20
Commercial Clarity
4.7 / 20
Operational Transparency
1.7 / 13
Governance
0.0 / 12
Discoverability
4.1 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
0 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
Minimal 1 0 – 12.9 Index entry only; little beyond a description and a link.
29
Docsify Minimal agent aware Docs-as-Code Static Site Generators
Docsify is a lightweight, no-build documentation site generator that turns Markdown files into a website on the fly using client-side JavaScript rendering.
Composite
12.0
Agent
7.7
Kin Score
How this is scored →scored 2026-08-17 · rubric v0.11.0
Composite quality — 12.0/100 · minimal
Contract Quality
0.0 / 25
Developer Ergonomics
3.0 / 20
Commercial Clarity
3.2 / 20
Operational Transparency
1.7 / 13
Governance
0.0 / 12
Discoverability
4.1 / 10
Agent readiness — 8/100 · agent aware
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
0 / 6
Agent Skills
5 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4