# OpenFGA

> OpenFGA is a CNCF open source authorization system for fine-grained, relationship-based access control.

Use product documentation for current behavior and the OpenAPI specification for exact HTTP request and response shapes.

## Start Here

- [Introduction to OpenFGA](https://openfga.dev/docs/fga.md)
- [Getting Started](https://openfga.dev/docs/getting-started.md)
- [Set Up OpenFGA](https://openfga.dev/docs/getting-started/setup-openfga/overview.md)
- [Get Started with Modeling](https://openfga.dev/docs/modeling/getting-started.md)

## FAQs and Concepts

- [Authorization Concepts](https://openfga.dev/docs/authorization-concepts.md)
- [OpenFGA Concepts](https://openfga.dev/docs/concepts.md)
- [Fine-Grained Authorization](https://openfga.dev/docs/learn/fine-grained-authorization.md)
- [Relationship-Based Access Control](https://openfga.dev/docs/learn/rebac.md)
- [RBAC vs. ReBAC](https://openfga.dev/docs/learn/rbac-vs-rebac.md)
- [ABAC vs. ReBAC](https://openfga.dev/docs/learn/abac-vs-rebac.md)
- [Policy Engines](https://openfga.dev/docs/learn/policy-engine.md)
- [Zanzibar](https://openfga.dev/docs/learn/zanzibar.md)

## API

- [OpenFGA API reference](https://openfga.dev/docs/api/service)
- [OpenFGA API specification](https://raw.githubusercontent.com/openfga/api/refs/heads/main/docs/openapiv3/apidocs.openapi.json)
- [Relationship Queries](https://openfga.dev/docs/interacting/relationship-queries.md)
- [Install SDK Client](https://openfga.dev/docs/getting-started/install-sdk.md)
- [OpenFGA CLI](https://openfga.dev/docs/getting-started/cli.md)

## Documentation Indexes

- [Complete documentation index](https://openfga.dev/docs/llms.txt)
- [Complete documentation bundle](https://openfga.dev/docs/llms-full.txt)

## Website

- [OpenFGA homepage](https://openfga.dev/index.md)
- [OpenFGA Project](https://openfga.dev/project.md)
- [OpenFGA Community](https://openfga.dev/community.md)
- [OpenFGA Blog](https://openfga.dev/blog)
- [Website content bundle](https://openfga.dev/llms-full.txt)

The website bundle contains Home, Project, and Community content, not a second copy of the product documentation.

## Optional

- [OpenFGA source repository](https://github.com/openfga/openfga)
- [OpenFGA SDK repositories](https://github.com/orgs/openfga/repositories?q=topic%3Asdk)