# TypeSpec OpenAPI Emitter

**Canonical:** https://apis.io/apis/typespec/typespec-openapi-emitter/  
**Provider:** TypeSpec — https://apis.io/providers/typespec/  
**Documentation:** https://typespec.io/docs/emitters/openapi3/reference

TypeSpec OpenAPI Emitter is one of 6 APIs that [TypeSpec](https://apis.io/providers/typespec/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Code Generation, OpenAPI, and REST API. The published artifact set on APIs.io includes API documentation and a GitHub repository.

The TypeSpec OpenAPI emitter converts TypeSpec definitions to OpenAPI 3.0 specifications. It supports HTTP operations, request/response bodies, security schemes, and API versioning decorators.

## Machine-readable artifacts (3)

- **Documentation** — https://typespec.io/docs/emitters/openapi3/reference
- **npm Package** — https://www.npmjs.com/package/@typespec/openapi3
- **GitHubRepository** — https://github.com/microsoft/typespec/tree/main/packages/openapi3

## Other TypeSpec APIs (5)

- [TypeSpec Compiler](https://apis.io/apis/typespec/typespec-compiler/)
- [TypeSpec JSON Schema Emitter](https://apis.io/apis/typespec/typespec-json-schema-emitter/)
- [TypeSpec Protobuf Emitter](https://apis.io/apis/typespec/typespec-protobuf-emitter/)
- [TypeSpec HTTP Library](https://apis.io/apis/typespec/typespec-http-library/)
- [TypeSpec REST Library](https://apis.io/apis/typespec/typespec-rest-library/)

## Tags

Code Generation, OpenAPI, REST API

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