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Building Supabase-Like OAuth Authentication for MCP Servers
How to add authentication, dynamic client registration, authorization server metadata to MCP servers support without any code changes.
After discovering these issues, we made it our goal to build an easy-to-use component that would help MCP server implementers by providing everything explained in the rest of this blog post in a ready-to-use package. Dex is a flexible OIDC provider that, while not natively supporting all the required OAuth2 extensions, offers a GRPC API that allows us to implement the missing functionality ourselves. For code examples in this blog post, we will use Go, which provides excellent built-in support for HTTP proxying and comes with a mature ecosystem of OAuth2 and JWT-related libraries.
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