For AI agents: The complete documentation index is available at /docs/llms.txt. A markdown version of this page is available at /docs/get-started/quickstarts/api.md.

API

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.NET API

QuickStart integration of .NET Web API with FusionAuth.

Golang API

QuickStart integration of a Golang API application using FusionAuth as a resource server.

Laravel API

QuickStart integration of a Laravel API application using FusionAuth.

Node.js/Express.js API

QuickStart integration of a JavaScript Express.js API application action as a resource server with FusionAuth.

Ruby on Rails API

QuickStart Integration of a Ruby on Rails API with FusionAuth.

Spring Boot API

QuickStart integration of a Spring Boot API application action as a resource server with FusionAuth.

Related

APIs

Authenticate with our APIs

Learn how the FusionAuth APIs authenticate requests.

api authenticationfusionauth apirest api
APIs

Hosted Backend API

Learn about the APIs that you to perform OAuth2 Authorization Code Flow login, logout, and refresh for applications.

fusionauth apirest apibackend api
APIs

User Action API

Learn about the APIs for invoking a User Action on a User.

fusionauth apirest api
APIs

Create an API Key API

API documentation for the FusionAuth Create an API Key API.

fusionauth apirest api