Show HN: OAuth 2.0 framework for MCP servers

Category: security

Tags: oauth-2.0, mcp, authorization-server

Score: 7.0/10 (Innovation: 7, Technical: 7, Documentation: 8, Utility: 6)

mcp-authflow is an OAuth 2.0 authorization server framework specifically designed for MCP (Model Context Protocol) servers, enabling secure token management and tool access control. It integrates multiple RFC standards (PKCE, device authorization grant, private_key_jwt) with async-first Starlette design and PostgreSQL/memory storage. This project is interesting because it fills a specific need for authentication in the emerging MCP ecosystem, combining proven OAuth patterns with a focused niche.

Target audience: backend devs

Repository: https://github.com/brooksmcmillin/mcp-authflow · Python · MIT · 4 stars

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