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OpenAPI Initiative
OpenAPI
Cloud & APIsWeb platform
WHY YOU NEED THIS
OpenAPI 3.1 is the de-facto REST API contract format — spec versions published at spec.openapis.org.
What It Is
Linux Foundation project maintaining the OpenAPI Specification (OAS) for describing HTTP APIs — paths, operations, schemas, security.
Taxonomy
By OAS version: 3.0 · 3.1 · 2.0 (Swagger)
Top-Level Categories
OpenAPI 3.1OpenAPI 3.0Swagger 2.0 (legacy)
Master Catalog
Sub-Indexes & Guides
Related Registry Sources
openapiswaggerrestapi-contract