APIs.io

Read-only discovery over the APIs.io catalog of API providers, their APIs, and the machine-readable artifacts each publishes. Searching the catalog, reading a provider or an API, and browsing tags, taxonomy and artifacts are free and need no key. Synthesis across the catalog — ratings, cohorts, capabilities, gap analysis, stack design — is paid.

Skills

• Search the API catalog
  Federated search across API providers, APIs and tags in one call, with match counts. Filter by tag, artifact type, industry, region or rating band. Free, no key required.
  discoverysearchfree
• Read a provider or an API
  Everything APIs.io holds about one provider: its APIs, artifacts, onboarding path, capabilities and evidence. Free, no key required.
  discoveryproviderfree
• Rate and compare providers
  The Kin Score: a published rubric over contract quality, developer ergonomics, commercial clarity, operational transparency, governance and discoverability, plus a standalone agent-readiness score. Compare providers or whole cohorts. Paid.
  ratingbenchmarkingpaid
• Find what to fix on a listing
  For a provider improving its own score: the ranked remediation list, which band gate is unmet, and what a given fix would move. Paid.
  remediationproviderpaid
• Report that the catalog is wrong
  Tell APIs.io its record about a provider is incorrect. Free and unmetered, always: correcting our own error is not a paid feature. Also reachable over REST at POST /v1/providers/{slug}/correction.
  correctionfeedbackfree

How to call

https://apis.io/mcp

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