# OpenAPI Initiative

**Canonical:** https://apis.io/apis/test-specifications/openapi-initiative/  
**Provider:** Test Specifications — https://apis.io/providers/test-specifications/  
**Base URL:** https://spec.openapis.org/oas/v3.1.0  
**Documentation:** https://www.openapis.org/

OpenAPI Initiative is one of 8 APIs that [Test Specifications](https://apis.io/providers/test-specifications/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include REST, Specification, and Standards. The published artifact set on APIs.io includes API documentation.

The OpenAPI Specification (OAS) is the de-facto standard for describing RESTful APIs. OpenAPI documents serve as machine-readable test specifications that tools such as Dredd, Schemathesis, and Postman use to auto-generate and validate test suites against live API implementations.

## Machine-readable artifacts (3)

- **Documentation** — https://spec.openapis.org/oas/v3.1.0
- **GitHubOrg** — https://github.com/OAI/OpenAPI-Specification
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/test-specifications/refs/heads/main/apis.yml

## Other Test Specifications APIs (7)

- [AsyncAPI Initiative](https://apis.io/apis/test-specifications/asyncapi-initiative/)
- [JSON Schema](https://apis.io/apis/test-specifications/json-schema/)
- [Gherkin / Cucumber BDD](https://apis.io/apis/test-specifications/gherkin-cucumber-bdd/)
- [Pact Contract Testing](https://apis.io/apis/test-specifications/pact-contract-testing/)
- [Swagger Editor](https://apis.io/apis/test-specifications/swagger-editor/)
- [Optic API](https://apis.io/apis/test-specifications/optic-api/)
- [Spectral](https://apis.io/apis/test-specifications/spectral/)

## Tags

REST, Specification, Standards

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/test-specifications/openapi-initiative/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/test-specifications/.