REST API
Resource-oriented HTTP API over standard verbs.
A RESTful HTTP interface with predictable resources, verbs, and status codes. Still the default integration surface and the one with the broadest client and tooling support.
183 API providers on the APIs.io network offer rest api. The highest-rated are HubSpot, Salesforce, LaunchDarkly, BigCommerce, Cloudflare.
Providers
Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.
Exemplar 39 Complete, well-documented, and agent-ready
Strong 28 Solid coverage with minor gaps
Developing 65 Usable, with meaningful gaps to close
Thin 38 Limited public surface area
Emerging 13 Early or largely undocumented
What Providers Actually Declared
This feature is a canonical term. These are the free-text strings
providers wrote in their own apis.yml that map onto it.
Showing 40 of 161 declared variants
Work with this as data
Every feature here is available over the APIs.io API and to AI agents over MCP. Features is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.