getmcpauth: OAuth 2.1 for MCP servers

What it does

Hosted OAuth 2.1 authorization server for MCP servers, with RFC 7591 Dynamic Client Registration and RFC 8414 discovery built in. Drop in the npm SDK and clients like Claude can register and authenticate automatically — no auth server to build yourself. We checked 87 real public MCP servers from Glama, PulseMCP, Smithery, and mcp.so — 9 (10%) had zero authentication. getmcpauth closes that gap. Free tier included, no sales call.

Add real OAuth to your MCP server in 10 minutes. Full OAuth 2.1 + RFC 7591 Dynamic Client Registration, hosted or self-serve. No CIAM platform required.

Drop-in OAuth 2.1 authorization server and SDK for MCP servers. Implements Dynamic Client Registration (RFC 7591) out of the box. import express from "express"; import { mcpAuth } from "getmcpauth"; const app = express(); app.use( "/mcp", mcpAuth({ registrationSecret: process.env.MCPAUTH_SECRET }) ); // Unauthenticated or invalid requests never reach this handler. app.post("/mcp", handleMcpRequest); 56,000+ MCP servers indexed on LobeHub 8.5% of MCP servers use OAuth ~40% of public MCP servers have no auth at all 53% use bare static API keys or PATs MCP auth is broken today The MCP spec expects clients to register themselves dynamically via Dynamic Client Registration (RFC 7591) — a client…from getmcpauth.dev

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