configuring-better-authlisted

# Better Auth OAuth/OIDC Implement centralized authentication with Better Auth - either as an auth server or SSO client. ## MCP Server Setup Better Auth provides an MCP server powered by Chonkie for guided configuration: ```bash claude mcp add --transport http better-auth https://mcp.chonkie.ai/better-auth/better-auth-builder/mcp ``` Or in `settings.json`: ```json { "mcpServers": { "better-auth": { "type": "http", "url": "https://mcp.chonkie.ai/better-auth/better-auth-builder/mcp" } } } ``` ### When to Use the MCP | Task | Use MCP? | |------|----------| | Initial Better Auth setup | Yes - guided configuration | | Adding OIDC provider plugin | Yes - generates correct config | | Troubleshooting auth issues | Yes - can analyze setup | | Understanding auth flow | Yes - explains concepts | | Writing custom middleware | No - use patterns below | --- ## Architecture Overview ``` ┌─────────────────┐ │ Better Auth SSO │ ← Central auth server (auth-server-setup.md) │ (Auth Server) │ └────────┬────────┘ │ ┌────┴────┐ ▼ ▼ ┌───────┐ ┌───────┐ │ App 1 │ │ App 2 │ ← SSO clients (sso-client-integration.md) └───────┘ └───────┘ ``` --- ## Quick Start: Auth Server Setup ```bash npm install better-auth @better-auth/oidc-provider drizzle-orm ``` ### Core Configuration ```typescript // src/lib/auth.ts import { betterAuth } from "better-auth"; import { drizzleAdapte