# FastApps Documentation

## Docs

- [Authentication](https://docs.fastapps.org/auth/index.md): OAuth 2.1 authentication for FastApps widgets and tools with built-in JWT verification.
- [All posts](https://docs.fastapps.org/blog/index.md): Explorations, updates, and deep dives into MCP tooling and FastApps development.
- [Inside the ChatGPT Apps SDK: How It Actually Works](https://docs.fastapps.org/blog/inside-the-chatgpt-apps-sdk-how-it-actually-works.md): Dive deep into the technical architecture of the OpenAI Apps SDK, exploring MCP servers, widgets, and the window.openai bridge that powers ChatGPT apps.
- [What Are Apps in ChatGPT and Why They're the Future of Software](https://docs.fastapps.org/blog/what-are-apps-in-chatgpt-and-why-they-are-the-future-of-software.md): Learn what Apps in ChatGPT are and how OpenAI's Apps SDK powers a new generation of conversational, AI-driven software.
- [Deploy FastApps Server](https://docs.fastapps.org/deployment/index.md): Deploy your first FastApps server using FastApps Cloud commands.
- [FastApps Quick Start](https://docs.fastapps.org/quickstart/index.md): Spin up your first FastApps project and run a widget in under five minutes.
- [Tool Basics](https://docs.fastapps.org/server/basics/index.md): Learn the fundamentals of creating mcp server tools with FastApps.
- [Set up your server](https://docs.fastapps.org/server/index.md): Build your MCP server and expose widgets as tools to ChatGPT.
- [MCP Integration](https://docs.fastapps.org/server/mcp-integration/index.md): Integrate other MCP servers as APIs using Metorial
- [How ChatGPT apps work](https://docs.fastapps.org/what-is-fastapps/index.md): Understand how ChatGPT apps work, and how to build one with FastApps
- [Widget Basics](https://docs.fastapps.org/widgets/basics/index.md): Learn the fundamentals of creating widgets with FastApps
- [Building Widgets](https://docs.fastapps.org/widgets/index.md): Create interactive React components that is rendered inside ChatGPT.
- [React Hooks](https://docs.fastapps.org/widgets/react-hooks/index.md): Complete guide to FastApps React hooks for managing states.
- [Templates](https://docs.fastapps.org/widgets/templates/index.md): Create widgets quickly using pre-built templates

## Optional

- [Website](https://www.fastapps.org/)
- [Community](https://discord.gg/x83WSGpg)