# PrefID Documentation

## Docs

- [Agent Hints](https://prefid.in/docs/api-reference/agent-hints.md): Get AI-optimized preference hints
- [Authentication](https://prefid.in/docs/api-reference/authentication.md): OAuth 2.0 token endpoints
- [Domains](https://prefid.in/docs/api-reference/domains.md): List and explore available preference domains
- [API Introduction](https://prefid.in/docs/api-reference/introduction.md): PrefID REST API Reference
- [Preferences](https://prefid.in/docs/api-reference/preferences.md): Get and update user preferences
- [Core Concepts](https://prefid.in/docs/concepts.md): Understand the architecture and key concepts of PrefID
- [Vercel AI SDK](https://prefid.in/docs/cookbook/ai-sdk.md): Integrate PrefID with Vercel AI SDK
- [Custom Agents](https://prefid.in/docs/cookbook/custom-agents.md): Build custom AI agents with PrefID
- [LangChain](https://prefid.in/docs/cookbook/langchain.md): Integrate PrefID with LangChain agents
- [Preference Domains](https://prefid.in/docs/guides/domains.md): Deep dive into each preference domain
- [Examples](https://prefid.in/docs/guides/examples.md): Real-world integration examples
- [Profile Catalog](https://prefid.in/docs/guides/profile-catalog.md): Complete reference of all PrefID preference profiles
- [Security](https://prefid.in/docs/guides/security.md): Security best practices and data privacy
- [MCP Integration](https://prefid.in/docs/integration/mcp.md): Use PrefID with Claude Desktop, Cursor, and MCP-enabled tools
- [OAuth Integration](https://prefid.in/docs/integration/oauth.md): Implement secure user authentication with OAuth 2.0 + PKCE
- [SDK Integration](https://prefid.in/docs/integration/sdk.md): Use the PrefID SDK for quick integration
- [Introduction](https://prefid.in/docs/introduction.md): Welcome to PrefID - The Identity Layer for AI
- [Quick Start](https://prefid.in/docs/quickstart.md): Get PrefID integrated in 5 minutes

## OpenAPI Specs

- [openapi](https://prefid.in/docs/api-reference/openapi.json)

## Optional

- [GitHub](https://github.com/prefid)
- [Developer Portal](https://pref-id.vercel.app/developer)