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by mcp-auth·50·Score 44

A Node.js SDK providing plug-and-play authentication for MCP servers using OAuth 2.1 and other RFC standards.

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Overview

MCP Auth Node.js SDK simplifies the implementation of authentication for MCP servers by handling the complex OAuth 2.1 and RFC compliance requirements. It allows developers to integrate trusted authentication providers with just a few lines of code, saving weeks of development time. The SDK maintains high code quality with comprehensive testing coverage and actively maintained documentation.

Try asking AI

After installing, here are 5 things you can ask your AI assistant:

you:Secure MCP servers by implementing OAuth 2.1 authentication without custom development
you:Quickly integrate with existing MCP-compatible authentication providers
you:Add authentication capabilities to Node.js-based MCP servers in minutes
you:What authentication providers are supported?
you:How does this compare to implementing OAuth 2.1 manually?

When to choose this

Choose MCP Auth when building Node.js MCP servers that need OAuth authentication and want to avoid implementing complex auth protocols from scratch.

When NOT to choose this

Don't choose this if you're not using Node.js, or if you need to implement custom authentication flows not supported by the SDK.

Comparable tools

auth0-mcppassport-mcpoauth2-serverkeycloak-mcp

Installation

npm install mcp-auth

For Claude Desktop integration, add the following to your claude_desktop_config.json:

{
  "mcpServers": {
    "mcp-auth-example": {
      "command": "node",
      "args": ["path/to/your/server.js"]
    }
  }
}

FAQ

What authentication providers are supported?
See the [MCP-compatible providers list](https://mcp-auth.dev/docs/provider-list) for a complete list of supported providers. The list includes a tool for real-time checking of provider compatibility.
How does this compare to implementing OAuth 2.1 manually?
Implementing OAuth 2.1 and other required RFCs manually typically takes weeks of development. MCP Auth provides a tested, standards-compliant implementation that can be integrated with just a few lines of code.

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