OAuth Server FAQs

Question 1

What is mcp-oauth-server?

Accepted Answer

mcp-oauth-server is an OAuth 2.1 Authorization Server implementation designed to be fully compliant with the MCP Authorization Specification, providing core functionality for secure authentication and authorization within the Model Context Protocol ecosystem.

Question 2

Which OAuth 2.1 specifications does it support?

Accepted Answer

It fully supports OAuth 2.1, Dynamic Client Registration (RFC 7591), Authorization Server Metadata (RFC 8414), and Protected Resource Metadata (RFC 9728), all in line with the MCP Authorization Spec.

Question 3

How does mcp-oauth-server handle data storage?

Accepted Answer

The server offers flexible storage options, including in-memory storage for development and an extensible OAuthServerModel interface that allows you to implement custom storage backends (like databases) for production environments.

Question 4

Can I integrate mcp-oauth-server with my Express application?

Accepted Answer

Yes, it provides convenient Express middleware, including `mcpAuthRouter` for setting up all OAuth 2.1 endpoints (authorization, token, registration) and `requireBearerAuth` for validating bearer tokens on protected resources.

Question 5

Does it offer enhanced compatibility for MCP clients?

Accepted Answer

Yes, mcp-oauth-server includes enhanced compatibility features for MCP clients that might not fully adhere to the spec, such as those missing resource indicators or requested scopes, ensuring broader integration and smoother operations.

OAuth Server

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