API Testing
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
36 providers
Exemplar 2 66.5+ Reference-quality API operations across every facet.
1
Checkly Exemplar agent ready Commercial Testing & Quality Platforms
Checkly is a code-first reliability platform for synthetic monitoring, uptime monitoring, alerting and AI-assisted incident investigation. Engineering teams ...
Composite
74.0
Agent
60.0
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 74.0/100 · exemplar
Contract Quality
15.0 / 25
Developer Ergonomics
15.7 / 20
0 / 0
Operational Transparency
11.3 / 13
0 / 0
Discoverability
7.5 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
6.8 / 15
Agent readiness — 60/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility documented
2.4 / 6
MCP Server
12.0 / 12
Machine-Readable Auth served
9.0 / 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
6 / 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
Delegated User Identity
6.0 / 6
Protected Resource Metadata
5.0 / 5
Registration Without a Human
6 / 6
Agentic Commerce Well-Known Document
0 / 5
2
Tricentis Exemplar agent ready Commercial Testing & Quality Platforms
Tricentis is an enterprise continuous testing and quality engineering company, founded in Austria in 2007 and headquartered in Vienna with US operations in A...
Composite
68.5
Agent
44.6
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 68.5/100 · exemplar
Contract Quality
14.1 / 25
Developer Ergonomics
17.1 / 20
0 / 0
Operational Transparency
7.9 / 13
0 / 0
Discoverability
8.0 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
6.8 / 15
Agent readiness — 45/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
0 / 6
MCP Server
12.0 / 12
Machine-Readable Auth bearer
3.5 / 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
5 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
Strong 1 54.3 – 66.4 Solid contracts, transparent operations, and an easy start.
3
Artillery Strong agent aware Load & Performance Testing
Artillery is an open source load testing and performance testing platform for APIs, microservices, and web applications. Built with Node.js and available as ...
Composite
57.4
Agent
11.5
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 57.4/100 · strong
Contract Quality
0.0 / 25
Developer Ergonomics
15.2 / 20
0 / 0
Operational Transparency
8.9 / 13
0 / 0
Discoverability
7.3 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
5.3 / 15
Agent readiness — 12/100 · agent aware
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
MCP Server
0 / 12
Machine-Readable Auth bearer
3.5 / 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
4 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
Developing 6 39.3 – 54.2 Real signal across most facets with visible, nameable gaps.
4
Assertible Developing agent ready Commercial Testing & Quality Platforms
Assertible provides a reliable first line of defense against web service failures by providing simple and powerful assertions to test and monitor APIs. It en...
Composite
48.2
Agent
34.7
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 48.2/100 · developing
Contract Quality
6.8 / 25
Developer Ergonomics
11.8 / 20
0 / 0
Operational Transparency
2.4 / 13
0 / 0
Discoverability
6.4 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
3.7 / 15
Agent readiness — 35/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
0 / 6
MCP Server
0 / 12
Machine-Readable Auth bearer
3.5 / 10
Idempotency documented
4.5 / 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 derived
1.3 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
5
SmartBear Developing agent aware Commercial Testing & Quality Platforms
SmartBear is a software company that provides AI-powered tools for API lifecycle management including design, testing, documentation, and governance. Their p...
Composite
43.7
Agent
22.9
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 43.7/100 · developing
Contract Quality
13.4 / 25
Developer Ergonomics
8.6 / 20
0 / 0
Operational Transparency
3.1 / 13
0 / 0
Discoverability
5.7 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
3.2 / 15
Agent readiness — 23/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
0 / 6
MCP Server documented
4.8 / 12
Machine-Readable Auth bearer
3.5 / 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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
6
APIToolkit (Monoscope) Developing agent aware Commercial Testing & Quality Platforms
APIToolkit (now Monoscope) is an open-source-friendly API observability and monitoring platform that helps teams find and fix production issues before custom...
Composite
42.8
Agent
25.8
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 42.8/100 · developing
Contract Quality
14.2 / 25
Developer Ergonomics
9.8 / 20
0 / 0
Operational Transparency
4.4 / 13
0 / 0
Discoverability
5.7 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
2.5 / 15
Agent readiness — 26/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
6 / 6
MCP Server
0 / 12
Machine-Readable Auth bearer
3.5 / 10
Idempotency
9 / 9
Stable Error Semantics
0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling
7.0 / 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
4 / 4
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
7
Nuclei Developing agent ready Security Testing Scanners
Nuclei is an open source vulnerability scanner from ProjectDiscovery that uses YAML-based templates to find security issues in APIs, web apps, and infrastruc...
Composite
41.8
Agent
30.9
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 41.8/100 · developing
Contract Quality
11.9 / 25
Developer Ergonomics
8.1 / 20
0 / 0
Operational Transparency
1.4 / 13
0 / 0
Discoverability
6.0 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
3.4 / 15
Agent readiness — 31/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
0 / 6
MCP Server
12.0 / 12
Machine-Readable Auth bearer
3.5 / 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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
8
Apache JMeter Developing agent aware Load & Performance Testing
Apache JMeter is an open-source Java application designed for load testing functional behavior and measuring performance. It supports web applications, REST ...
Composite
41.4
Agent
22.3
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 41.4/100 · developing
Contract Quality
11.5 / 25
Developer Ergonomics
4.3 / 20
0 / 0
Operational Transparency
4.8 / 13
0 / 0
Discoverability
5.7 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
3.1 / 15
Agent readiness — 22/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
0 / 6
MCP Server
0 / 12
Machine-Readable Auth
0 / 10
Idempotency
0 / 9
Stable Error Semantics
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
9
Selenium Developing agent aware Browser & End-to-End Frameworks
Selenium is the open-source browser automation project behind the W3C WebDriver and WebDriver BiDi standards. It drives real browsers through a vendor-neutra...
Composite
39.6
Agent
27.9
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 39.6/100 · developing
Contract Quality
11.2 / 25
Developer Ergonomics
14.6 / 20
0 / 0
Operational Transparency
3.4 / 13
0 / 0
Discoverability
7.1 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
2.5 / 15
Agent readiness — 28/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
0 / 6
MCP Server
0 / 12
Machine-Readable Auth bearer
3.5 / 10
Idempotency
0 / 9
Stable Error Semantics documented
4.0 / 8
Request/Response Examples
0 / 7
Rate-Limit Signaling documented
3.5 / 7
Typed Event Surface
6 / 6
Agent Skills derived
1.3 / 5
Well-Known Catalog
0 / 4
Consent & Bot Identity
0 / 3
A2A Agent Card
0 / 8
Dry-Run / Simulate Mode
0 / 4
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
Thin 14 26.2 – 39.2 Limited machine-readable signal beyond documentation a human can read.
10
Cypress.io Thin agent aware Browser & End-to-End Frameworks
Cypress.io, Inc. builds Cypress, an open-source, JavaScript-based end-to-end and component testing framework that runs tests directly in the browser with tim...
Composite
37.8
Agent
14.7
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 37.8/100 · thin
Contract Quality
0.0 / 25
Developer Ergonomics
14.3 / 20
0 / 0
Operational Transparency
6.2 / 13
0 / 0
Discoverability
7.5 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
2.9 / 15
Agent readiness — 15/100 · agent aware
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
MCP Server
12.0 / 12
Machine-Readable Auth bearer
3.5 / 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
Delegated User Identity
0 / 6
Protected Resource Metadata
5.0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
11
Beeceptor Thin agent ready Mocking & Service Virtualization
Beeceptor is an API mocking, HTTP debugging, and proxy platform that lets developers create mock servers instantly without any coding. It supports REST, SOAP...
Composite
37.7
Agent
42.8
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 37.7/100 · thin
Contract Quality
12.9 / 25
Developer Ergonomics
10.0 / 20
0 / 0
Operational Transparency
3.1 / 13
0 / 0
Discoverability
6.0 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
1.8 / 15
Agent readiness — 43/100 · agent ready
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
0 / 6
MCP Server
12.0 / 12
Machine-Readable Auth bearer
3.5 / 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
Delegated User Identity
0 / 6
Protected Resource Metadata
5.0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
12
OWASP ZAP Thin agent aware Security Testing Scanners
OWASP ZAP (Zed Attack Proxy) is an open source web application security scanner for finding vulnerabilities in APIs and web applications during development a...
Composite
37.6
Agent
22.9
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 37.6/100 · thin
Contract Quality
9.1 / 25
Developer Ergonomics
6.7 / 20
0 / 0
Operational Transparency
4.8 / 13
0 / 0
Discoverability
6.6 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
2.6 / 15
Agent readiness — 23/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
6 / 6
MCP Server
0 / 12
Machine-Readable Auth bearer
3.5 / 10
Idempotency
9 / 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
4 / 4
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
13
MockServer Thin agent aware Mocking & Service Virtualization
MockServer enables easy mocking of any system you integrate with via HTTP or HTTPS (e.g. services, web sites, etc) with clients in Java, JavaScript, and Ruby...
Composite
33.8
Agent
17.3
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 33.8/100 · thin
Contract Quality
9.2 / 25
Developer Ergonomics
4.3 / 20
0 / 0
Operational Transparency
4.8 / 13
0 / 0
Discoverability
6.4 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
1.8 / 15
Agent readiness — 17/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
14
Pact Thin agent aware Contract Testing & Test Frameworks
Pact is an open source contract testing framework that verifies API consumer-provider interactions with support for Ruby, Java, .NET, JavaScript, Go, and Pyt...
Composite
33.2
Agent
19.8
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 33.2/100 · thin
Contract Quality
10.7 / 25
Developer Ergonomics
5.7 / 20
0 / 0
Operational Transparency
3.4 / 13
0 / 0
Discoverability
5.5 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
1.8 / 15
Agent readiness — 20/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
0 / 6
MCP Server
0 / 12
Machine-Readable Auth bearer
3.5 / 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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
15
Mockoon Thin agent aware Mocking & Service Virtualization
Mockoon is the easiest and quickest way to design and run mock REST APIs. Available as a free, open-source desktop application and CLI, it lets developers bu...
Composite
32.6
Agent
17.3
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 32.6/100 · thin
Contract Quality
10.4 / 25
Developer Ergonomics
4.8 / 20
0 / 0
Operational Transparency
3.4 / 13
0 / 0
Discoverability
6.4 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
1.6 / 15
Agent readiness — 17/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
16
Speedscale Thin human only Commercial Testing & Quality Platforms
Speedscale is an API traffic replay and performance testing platform that captures production API traffic and replays it in test environments for load testin...
Composite
32.1
Agent
3.8
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 32.1/100 · thin
Contract Quality
7.1 / 25
Developer Ergonomics
7.1 / 20
0 / 0
Operational Transparency
1.4 / 13
0 / 0
Discoverability
7.3 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
1.6 / 15
Agent readiness — 4/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
17
WireMock Thin agent aware Mocking & Service Virtualization
WireMock is an open source tool for mocking HTTP services and APIs. It enables developers to build stable, predictable development environments by creating m...
Composite
32.0
Agent
19.8
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 32.0/100 · thin
Contract Quality
12.2 / 25
Developer Ergonomics
6.7 / 20
0 / 0
Operational Transparency
1.7 / 13
0 / 0
Discoverability
6.4 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
1.6 / 15
Agent readiness — 20/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
18
Schemathesis Thin human only Contract Testing & Test Frameworks
Schemathesis is a property-based API testing tool that automatically generates test cases from OpenAPI and GraphQL schemas to find bugs and specification vio...
Composite
31.7
Agent
3.8
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 31.7/100 · thin
Contract Quality
6.1 / 25
Developer Ergonomics
2.4 / 20
0 / 0
Operational Transparency
4.8 / 13
0 / 0
Discoverability
5.7 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
1.6 / 15
Agent readiness — 4/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
19
K6 Thin agent aware Load & Performance Testing
k6 is an open source load testing tool by Grafana Labs for testing the performance and reliability of APIs using JavaScript-based test scripts.
Composite
30.7
Agent
22.9
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 30.7/100 · thin
Contract Quality
12.3 / 25
Developer Ergonomics
4.8 / 20
0 / 0
Operational Transparency
3.4 / 13
0 / 0
Discoverability
3.9 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
1.8 / 15
Agent readiness — 23/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
6 / 6
MCP Server
0 / 12
Machine-Readable Auth bearer
3.5 / 10
Idempotency
9 / 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
4 / 4
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
20
Microcks Thin agent aware Mocking & Service Virtualization
Microcks is an open source, cloud-native tool for API mocking and testing. It provides a platform for importing API contracts (OpenAPI, AsyncAPI, Postman Col...
Composite
29.1
Agent
28.3
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 29.1/100 · thin
Contract Quality
11.6 / 25
Developer Ergonomics
7.1 / 20
0 / 0
Operational Transparency
1.4 / 13
0 / 0
Discoverability
5.7 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
3.2 / 15
Agent readiness — 28/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
0 / 6
MCP Server documented
4.8 / 12
Machine-Readable Auth negotiable
7.5 / 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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
21
REST Assured Thin human only Contract Testing & Test Frameworks
REST Assured is a Java library for simplifying the testing and validation of RESTful APIs. It provides a fluent domain-specific language (DSL) built on the g...
Composite
28.9
Agent
3.8
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 28.9/100 · thin
Contract Quality
8.3 / 25
Developer Ergonomics
4.3 / 20
0 / 0
Operational Transparency
4.8 / 13
0 / 0
Discoverability
5.7 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
1.6 / 15
Agent readiness — 4/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
22
GoReplay Thin human only Load & Performance Testing
GoReplay is an open source network traffic capture and replay tool, distributed as a single `gor` binary under LGPL-3.0, that records live HTTP traffic on a ...
Composite
28.0
Agent
2.5
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 28.0/100 · thin
Contract Quality
0.0 / 25
Developer Ergonomics
7.1 / 20
0 / 0
Operational Transparency
2.4 / 13
0 / 0
Discoverability
6.4 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
2.2 / 15
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
23
Hoverfly Thin agent aware Mocking & Service Virtualization
Hoverfly is an open source API simulation tool for creating realistic mock services and capturing-replaying HTTP traffic for testing.
Composite
26.5
Agent
17.3
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 26.5/100 · thin
Contract Quality
9.7 / 25
Developer Ergonomics
3.3 / 20
0 / 0
Operational Transparency
3.8 / 13
0 / 0
Discoverability
3.9 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
0.9 / 15
Agent readiness — 17/100 · agent aware
Machine-Readable Contract
18 / 18
Agentic Access Contract derived
2.5 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
Emerging 13 11 – 26.1 More than an index entry but still mostly links rather than artifacts.
24
Locust Emerging human only Load & Performance Testing
Locust is an open source load testing tool written in Python that lets you define user behavior with code and swarm your system with millions of simultaneous...
Composite
25.1
Agent
2.5
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 25.1/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
5.7 / 20
0 / 0
Operational Transparency
4.8 / 13
0 / 0
Discoverability
6.4 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
0.9 / 15
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
25
SuperTest Emerging human only Contract Testing & Test Frameworks
SuperTest is a Node.js library for testing HTTP servers by providing a high-level abstraction for HTTP assertions with a fluent API built on SuperAgent. Main...
Composite
24.2
Agent
2.5
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 24.2/100 · emerging
Contract Quality
4.5 / 25
Developer Ergonomics
1.9 / 20
0 / 0
Operational Transparency
3.4 / 13
0 / 0
Discoverability
5.7 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
0.7 / 15
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
26
Vegeta Emerging human only Load & Performance Testing
Vegeta is an open source HTTP load testing tool and library written in Go for generating constant request rates to measure API performance and reliability un...
Composite
22.9
Agent
3.8
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 22.9/100 · emerging
Contract Quality
4.6 / 25
Developer Ergonomics
1.9 / 20
0 / 0
Operational Transparency
3.4 / 13
0 / 0
Discoverability
5.7 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
0.7 / 15
Agent readiness — 4/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
27
Optic Emerging human only Contract Testing & Test Frameworks
Optic is an MIT-licensed command-line tool for OpenAPI linting, diffing and testing. It compares two versions of an OpenAPI document with behaviour-aware dif...
Composite
21.0
Agent
2.5
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 21.0/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
8.1 / 20
0 / 0
Operational Transparency
3.8 / 13
0 / 0
Discoverability
6.4 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
2.5 / 15
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
28
Mock Service Worker Emerging human only Mocking & Service Virtualization
Mock Service Worker (MSW) is an industry-standard, open-source API mocking library for the browser and Node.js. MSW intercepts outgoing requests at the netwo...
Composite
20.1
Agent
3.8
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 20.1/100 · emerging
Contract Quality
3.3 / 25
Developer Ergonomics
5.7 / 20
0 / 0
Operational Transparency
1.7 / 13
0 / 0
Discoverability
5.7 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
1.6 / 15
Agent readiness — 4/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
29
Dredd Emerging human only Contract Testing & Test Frameworks
Dredd is a language-agnostic, MIT-licensed open source command-line tool that validates a running HTTP API against its own API description document. It compi...
Composite
19.2
Agent
2.5
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 19.2/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
8.1 / 20
0 / 0
Operational Transparency
2.4 / 13
0 / 0
Discoverability
5.7 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
1.6 / 15
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
30
Karate Emerging human only Contract Testing & Test Frameworks
Karate is an open source API test automation framework combining API testing, mocks, and performance testing in a single tool using BDD syntax.
Composite
19.2
Agent
2.5
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 19.2/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
0.0 / 20
0 / 0
Operational Transparency
4.8 / 13
0 / 0
Discoverability
3.9 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
0.9 / 15
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
31
mockAPI Emerging human only Mocking & Service Virtualization
mockAPI.io is a hosted mock API service that lets developers create custom REST endpoints, define resource schemas, and generate fake data for testing and pr...
Composite
19.0
Agent
2.5
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 19.0/100 · emerging
Contract Quality
1.7 / 25
Developer Ergonomics
4.3 / 20
0 / 0
Operational Transparency
1.7 / 13
0 / 0
Discoverability
6.4 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
1.6 / 15
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
32
Step CI Emerging human only Contract Testing & Test Frameworks
Step CI is an open source API testing and monitoring framework that uses YAML-based workflows to define and run automated API test scenarios. It supports RES...
Composite
18.9
Agent
2.5
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 18.9/100 · emerging
Contract Quality
2.7 / 25
Developer Ergonomics
2.9 / 20
0 / 0
Operational Transparency
3.4 / 13
0 / 0
Discoverability
5.7 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
1.6 / 15
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
33
Gatling Emerging human only Load & Performance Testing
Gatling is an open source load and performance testing framework for web applications and APIs with a Scala-based DSL and detailed HTML reports. The Gatling ...
Composite
17.0
Agent
5.0
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 17.0/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
4.3 / 20
0 / 0
Operational Transparency
1.4 / 13
0 / 0
Discoverability
5.5 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
2.5 / 15
Agent readiness — 5/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
MCP Server
0 / 12
Machine-Readable Auth bearer
3.5 / 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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
34
Newman Emerging human only Contract Testing & Test Frameworks
Newman is the open source command-line companion for Postman that runs Postman collections from the CLI for automated API testing in CI/CD pipelines.
Composite
15.1
Agent
2.5
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 15.1/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
1.9 / 20
0 / 0
Operational Transparency
2.7 / 13
0 / 0
Discoverability
3.9 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
0.9 / 15
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
35
Prism Emerging human only Mocking & Service Virtualization
Prism is an open source HTTP mock and validation server from Stoplight that generates dynamic mock responses and validates requests against OpenAPI specifica...
Composite
14.9
Agent
2.5
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 14.9/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
0.5 / 20
0 / 0
Operational Transparency
3.4 / 13
0 / 0
Discoverability
3.9 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
0.9 / 15
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5
36
Portman Emerging human only Contract Testing & Test Frameworks
Portman is an open source CLI tool that auto-generates Postman collections with contract and variation tests from OpenAPI specifications, supporting OpenAPI ...
Composite
12.4
Agent
2.5
Kin Score
How this is scored →scored 2026-10-03 · rubric v0.23.0
Composite quality — 12.4/100 · emerging
Contract Quality
0.0 / 25
Developer Ergonomics
1.9 / 20
0 / 0
Operational Transparency
3.8 / 13
0 / 0
Discoverability
4.8 / 10
Regulatory · Horizontal (data, software, accessibility, platform)
0.0 / 15
Agent readiness — 3/100 · human only
Machine-Readable Contract
0 / 18
Agentic Access Contract
0 / 10
Documented Reversibility
0 / 6
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
Delegated User Identity
0 / 6
Protected Resource Metadata
0 / 5
Registration Without a Human
0 / 6
Agentic Commerce Well-Known Document
0 / 5