better-auth-mcp-server MCP Server

What is better-auth-mcp-server?

better-auth-mcp-server is an MCP (Model Context Protocol) server for authentication management. It provides enterprise-grade tools to set up, test, migrate, and monitor authentication systems, supporting OAuth2, SAML, and LDAP protocols with AES-256 encryption and real-time threat detection.

How to use better-auth-mcp-server?

Install via Smithery (npx -y @smithery/cli install @nahmanmate/better-auth-mcp-server --client claude) or manually configure it in Claude Desktop’s claude_desktop_config.json. Set environment variables BETTER_AUTH_PROJECT_ID and BETTER_AUTH_API_KEY (required). Use its tools (e.g., setup_better_auth, analyze_project) to manage authentication flows.

Key features of better-auth-mcp-server

• Secure credential management with AES-256 encryption
• Multi-protocol authentication (OAuth2, SAML, LDAP)
• Real-time threat detection and prevention
• Tools for analyzing, setting up, and migrating auth systems
• Resources for inspecting current config and logs
• OWASP-aligned security testing and monitoring

Use cases of better-auth-mcp-server

• Analyze an existing project and get auth setup recommendations
• Configure Better-Auth providers with project ID and API key
• Detect current Auth.js/NextAuth implementations and generate migration plans
• Test login, registration, 2FA, and password reset flows
• Run security checks and monitor authentication logs in real time

FAQ from better-auth-mcp-server

What runtime or dependencies does better-auth-mcp-server require?

It requires Node.js to run, and uses environment variables (BETTER_AUTH_PROJECT_ID, BETTER_AUTH_API_KEY) for configuration. It communicates over stdio via the MCP protocol.

How does better-auth-mcp-server compare to alternatives like Auth.js?

It offers migration tools (analyze_current_auth, generate_migration_plan) specifically for moving from Auth.js/NextAuth to Better-Auth, and provides enterprise features like AES-256 encryption and multi‑protocol support.

What transportation mechanism does better-auth-mcp-server use?

It uses stdio-based MCP transport, suitable for integration with Claude Desktop and other MCP clients. Debugging is supported via the MCP Inspector (npm run inspector).

Where do authentication logs and configuration data live?

Logs and configuration are accessible through MCP resources (better-auth://logs and better-auth://config). The server reads from the Better-Auth system; actual data storage is external to this server.

Is there any rate limiting or access control built in?

The README recommends implementing rate limiting, IP allowlists, and the principle of least privilege as best practices, but these are not built into the server itself; they must be configured at the infrastructure level.