Implementing OAuth Authentication for MCP Servers with a Gateway Solution
By
pmig
Baker's choice. Dense with flavour, light on filler.
Summary
This technical blog post explains how to build an MCP Server Gateway that adds OAuth authentication and authorization capabilities to MCP (Model Context Protocol) servers without requiring code changes. The author, an engineer at Hypr MCP, describes creating a reverse proxy solution that enables dynamic client registration, authorization server metadata, and secure authentication for MCP servers, similar to Supabase's approach. The article focuses on implementing the MCP specification's authorization framework to allow LLMs to securely interact with internal applications and systems.
Key quotes
· 3 pulledThe Model Context Protocol (MCP) has emerged as the de-facto standard way for Large Language Models (LLMs) to interact with other systems.
I want to show you how and why we built an MCP Server Gateway that acts as a reverse proxy for one or more upstream MCP servers while adding support for the authorization framework provided by the MCP specification.
How to add authentication, dynamic client registration, authorization server metadata to MCP servers support without any code changes.
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