> For the complete documentation index, see [llms.txt](/docs/llms.txt)

# OpenAPI Specification | FusionAuth Docs

Learn about the FusionAuth OpenAPI Specification, which allows you to use OpenAPI tooling to interact with FusionAuth.

# OpenAPI Specification

This OpenAPI Specification allows you to use FusionAuth with OpenAPI tooling. It supports OpenAPI version 3.

The [OpenAPI specification project](https://github.com/FusionAuth/fusionauth-openapi) contains the YAML file and a README with further information, including known issues.

The [current OpenAPI specification](https://raw.githubusercontent.com/FusionAuth/fusionauth-openapi/main/openapi.yaml) suitable for downloading and using.