Agent Skills

20 skills that teach an agent how to work the apis.io catalog — find an API, read its spec, onboard a provider, check whether it is agent-ready, score your own API, and research a whole market. Each one is backed by the apis.io v1 API and the MCP server.

Install all 20 in Claude Code

The plugin bundles every skill below and connects the apis.io MCP server. 

/plugin marketplace add api-search/network
/plugin install apis-io@apis-io

Or fetch any SKILL.md directly. Manifest: /skills/index.json · /.well-known/agent-skills/index.json

Orientation

Start here — how the catalog works, and how to turn a company into a catalog record.

discover-apis-io

Learn how to read the apis.io API catalog — the v1 REST API, the MCP server, and the markdown mirror of every page — so other skills can find APIs without scraping HTML. Use this first when the user mentions apis.io or asks to discover APIs across a catalog.

resolve-provider

Turn a domain, URL, company name, or GitHub org into an apis.io provider slug, with its quality band and composite score. Use first whenever the user names a company rather than a catalog slug — which is almost always.

Discovery

Find APIs, providers, specs, and every other artifact the catalog holds.

search-apis

Search the apis.io catalog for APIs, providers, and tags by keyword, capability, tag, or provider. Use when the user asks what APIs exist for something, which providers offer a capability, or wants to filter the catalog.

find-api

Find the right API for a task — search the apis.io catalog, inspect the strongest candidates, and recommend one with its spec and links. Use when the user asks what API to use for something, or whether an API exists for a job.

fetch-api-spec

Fetch and parse the OpenAPI, AsyncAPI, GraphQL, or Postman description for an API in the apis.io catalog, given its aid or its apis.io URL. Use to inspect operations, summarize endpoints, or generate code from a real spec.

find-artifact

Search the apis.io catalog for any artifact type beyond OpenAPI — Arazzo workflows, Spectral rules, pricing plans, FinOps, rate limits, GraphQL, Postman collections, JSON Schemas, examples, and more. Use when the user wants governance, commercial, or workflow artifacts rather than an API contract.

integrate-provider

Onboard an API provider end-to-end — pull its signup, authentication, base URLs and OpenAPI from the apis.io catalog and produce concrete, runnable first-integration steps. Use when a provider is chosen and the user wants to actually wire it up.

Agent readiness

Whether an API can be driven by an agent — and what it publishes for one.

agent-readiness-scan

Check whether an API provider is ready for autonomous AI agents — machine-readable contracts, MCP servers, agent skills, llms.txt, agent-native access controls, and the operational signals an agent needs. Use when asked if an API is agent-ready, or to compare providers on agent readiness.

discover-mcp-servers

Find providers in the apis.io catalog that publish an MCP server, with the endpoint and install method, so you can plug real tools into an agent. Use when the user wants agent-ready tools rather than raw REST.

discover-agent-skills

Search the apis.io catalog for Agent Skills published by API providers — packaged SKILL.md files you can adopt directly. Use when the user wants ready-made skills for a vendor or capability rather than writing integration code.

verify-provenance

Check where an apis.io provider record's evidence came from — which artifacts the provider published first-party versus which apis.io derived — before citing a score or an artifact as fact. Use when accuracy matters, or when a provider disputes their rating.

Scoring your own API

The provider side: what you score, why, and what to publish next.

score-my-api

Read a provider's apis.io quality score and the Kin Score rubric, then turn it into a ranked, do-this-next punch list of what to publish to move up a band. Use when someone wants to know how their own API rates and how to improve it.

benchmark-against-peers

Benchmark one API provider against its closest peers facet by facet — score, artifact coverage, and where it leads or trails. Use for competitive positioning or to justify an API investment. Pro tier, with a free fallback.

Deciding and monitoring

Choose between vendors, audit an estate, and watch it over time.

shortlist-vendors

Turn one capability into a scored, compared vendor shortlist from the apis.io catalog, with a clear recommendation. Use for a buy decision on a single capability. Pro tier.

assemble-api-stack

Design a capability stack from the apis.io catalog — the best-rated provider per capability — and export it as an adoptable APIs.json. Use when the user needs several APIs at once, not one. Pro tier.

audit-api-estate

Inventory, score, and gap a set of API providers from the apis.io catalog — what they publish, how they rate, and what they are missing. Use to assess a vendor portfolio. Pro tier.

watch-providers

Set up ongoing monitoring of the apis.io catalog using saved searches and lists — track a vendor set, get only what is new since last check, and watch for rating movement. Use for recurring vendor monitoring rather than one-off queries. Pro tier, with a free fallback.

track-api-changes

Monitor the apis.io catalog for providers added or updated and for rating movement, across a chosen set or the whole network. Use for ongoing vendor monitoring. Pro tier.

Market research

Whole markets, from the supply side and the demand side.

explore-cohort

Explore any slice of the API market as a scored cohort — an industry, topic area, region, or tag — with its members, their Kin Scores and agent readiness. Use to size a market, find the leaders in a category, or research a sector.

company-readiness

Read the demand side of the API market — what technologies a company is investing in, where it is thin, and which catalog providers are already in its stack. Use for account research, sales targeting, or to find where demand outruns supply.

Free and Pro

Discovery is free — search, specs, artifacts, onboarding, MCP servers, agent skills, provenance, the scoring rubric, and cohort membership. Ratings detail, comparison, gaps, scopes, security, saved searches, and export are Pro or Business. A gated call returns HTTP 402 with a machine-readable body; every skill here handles that and falls back to what it can do free.

Skills published by providers

These are apis.io's own skills. The catalog also indexes the Agent Skills that API providers publish across the network — browse them at /agent-skills/, or search them through /api/v1/skills with the discover-agent-skills skill.