APIs.io

APIs.io Ratings API

The APIs.io API rating system — a 0–100 composite score, five bands, a trend marker, and six weighted facets measuring how complete, governed, and integration-ready each provider's public API surface is. Rubric v0.3.

GitHub OpenAPI

Documentation

📖
Documentation
https://apis.io/developer/overview/
📖
Authentication
https://apis.io/developer/authentication/
📖
RateLimits
https://apis.io/developer/plans/

Specifications

⚙
OpenAPI
https://artifacts.apis.io/apis-io/openapi/apis-io-ratings-api-openapi.yml

Schemas & Data

📊
JSONSchema
https://artifacts.apis.io/apis-io/json-schema/apis-io-search-search-schema.json
📊
JSONSchema
https://artifacts.apis.io/apis-io/json-schema/apis-io-search-ap-is-json-schema.json

Other Resources

🔗
Overlay
https://apis.io/artifacts/overlays/apis-io-ratings-api-overlay.yaml
🔗
MCPServerCard
https://apis.io/.well-known/mcp/server-card.json
🔗
AgentSkills
https://apis.io/skills/
🔗
AgentSkills
https://apis.io/.well-known/agent-skills/index.json
🔗
PostmanCollection
https://www.postman.com/api-evangelist/apis-io-api-evangelist-engine/collection/hn8xpmd/apis-io-search-api
🔗
ChangeLog
https://apis.io/changelog/
🔗
StatusPage
https://www.postman.com/api-evangelist/apis-io/monitor/APIs-io-Search---Status~1ef6bc29-9da9-4040-b98b-cef03be1155e

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • 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.
All 92 tools →

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/apis-io:apis-io-ratings-api"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

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OpenAPI Specification

apis-io-ratings-api-openapi.yml Raw ↑