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 1 Complete, well-documented, and agent-ready

PostmanPostman is the single platform for collaborative API development used by 35+ million developers. It covers ...82.5

Strong 1 Solid coverage with minor gaps

InsomniaInsomnia is an open-source, cross-platform API development platform by Kong for designing, debugging, and t...57.5

Thin 4 Limited public surface area

GraphQL Tools APIA set of utilities for faster GraphQL development, enabling SDL-first schema building, type-safe resolver c...34.7 AmbassadorAmbassador offers a suite of products designed to deliver API developer experiences that fuel innovation. T...31.8 Ambassador Blackbird API Development PlatformBlackbird is an API development platform that helps developers design, build, test, and manage APIs with AI...31.8 MockoonMockoon ships as a desktop application, a CLI, and a serverless package for designing and running mock REST...31.2

Emerging 5 Early or largely undocumented

Mockito CoreThe core Mockito mocking framework for creating mock objects, stubbing methods, verifying invocations, and ...21.5 Mock Service WorkerMock Service Worker (MSW) is an open-source library for mocking REST, GraphQL, WebSocket, and Server-Sent E...17.6 mockAPImockAPI is a hosted platform for generating REST mock APIs. Users define resources, fields, and relationshi...17.0 PrismPrism is an open source HTTP mock and validation server from Stoplight that generates dynamic mock response...12.4 Jest Core APICore testing framework API for writing and running tests, including globals, expect assertions, mock functi...11.6

Minimal 1 Almost no public developer surface

JMock Core APICore library for creating mock objects and defining expectations in Java tests using an expressive DSL. Sup...10.5

Companies reaching this through an API (1)

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

Ambassador

Score breakdown

Frequency

38.6

log-scaled weighted occurrences

Breadth

0.3

spread across providers

Quality lift

31.2

mean composite of providers using it

Cohesion

8.5

strength of nearest seed neighbor

Where this tag sits

Testing broader

Where this tag comes from

Api tag12

Provider tag22

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7 MCP tools reach this

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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.

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Mocking

Providers using this tag (22)

APIs with this tag (12)