niche · 0.3 capability

Anthropic

Score 18.1 / 100 10 providers +10 via APIs 10 APIs Search apis.io →

Providers using this tag (10)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 1 Complete, well-documented, and agent-ready

AnthropicLLMArtificial IntelligenceClaude5 APIs87.5

Developing 2 Usable, with meaningful gaps to close

PydanticAIArtificial IntelligenceAgentsPythonLLM2 APIs54.1 UnifyLLMArtificial IntelligenceLLM RoutingModel Gateway1 API43.6

Thin 5 Limited public surface area

tokenusage-devCompanyToken UsageArtificial IntelligenceAnalytics1 API36.8 osmAPIArtificial IntelligenceGatewaysLLM4 APIs28.7 AI CertificatesEducationArtificial IntelligenceCertificationPractice Exams1 API28.0 Model Context Protocol (MCP)MCPAI AgentsToolsResources17 APIs26.8 Robin AILegalLegal TechContract ReviewContract Analysis1 API37.6

Emerging 2 Early or largely undocumented

Claude NewsNewsArtificial IntelligenceReal-Time2 APIs16.6 FastMCPMCPPythonFrameworkOpen Source6 APIs18.2

APIs with this tag (10)

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

Claude Managed Agents on Cloudflare APIClaude Managed Agents on Cloudflare is a partnership offering announced May 19, 2026 that exposes Anthropic...82.8

Developing 1 Usable, with meaningful gaps to close

Mercado Pago MCP ServerModel Context Protocol server exposing Mercado Pago APIs as tools for AI agents and IDE assistants. Enables...41.8

Thin 7 Limited public surface area

cheapestinference-com api APIcheapestinference-com api API as documented publicly: 36 operations. Contract generated from the documentat...38.1 Ollama Anthropic Compatibility APIOllama provides compatibility with the Anthropic Messages API, enabling tools like Claude Code to work with...38.0 CalypsoAI Anthropic APIThe Anthropic API from CalypsoAI — 1 operation(s) for anthropic.34.9 RunAPI Anthropic APIThe Anthropic API from RunAPI — 1 operation(s) for anthropic.34.2 LiteLLM Anthropic Messages APIProvides Anthropic-compatible /v1/messages and /v1/messages/count_tokens endpoints for native Anthropic API...34.1 Anthropic Tool Use APIThe Anthropic Tool Use API allows AI agents built on Claude to call client-defined functions or Anthropic-p...28.2 Open WebUI Anthropic APIThe Anthropic API from Open WebUI — 1 operation(s) for anthropic.27.3

Emerging 1 Early or largely undocumented

HumanloopHumanloop was a development platform for LLM applications, describing itself as having been "the first deve...20.6

Companies reaching this through an API (10)

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

Agent Skills CalypsoAI cheapestinference-com Cloudflare Evals LiteLLM Mercado Pago Ollama Open WebUI RunAPI

Score breakdown

Frequency

34.5

log-scaled weighted occurrences

Breadth

0.1

spread across providers

Quality lift

45.3

mean composite of providers using it

Cohesion

2.7

strength of nearest seed neighbor

Where this tag comes from

Api tag9

Provider tag10

Openapi tag3

Openapi op tag6

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Tools for tags

7 MCP tools reach this

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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.

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