API Docs, Specs & Portals – Public APIs Directory

About API Docs, Specs & Portals

Create and host beautiful docs, portals, and SDKs; many auto-surface rate limits from OpenAPI.

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API Docs, Specs & Portals

Swagger / OpenAPI — Industry spec for REST APIs
OpenAPI Generator — Generate SDKs from OpenAPI
Redocly — Docs & governance platform
ReadMe — Developer hubs with metrics & quotas
Mintlify — Modern docs with API refs
Slate — Clean static API docs
Docusaurus — Static docs with plugins for OpenAPI
GitBook — Docs & changelogs
Swagger Editor — Browser OpenAPI editor
Fern — API SDKs & docs from schemas
Speakeasy — SDK generation + portal