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OAuth and MCP client authentication

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MCP Connect Auth: Publish MCP Servers with OAuth Clients Can Actually Use

· 4 min read
Tony Lewis
MCPBundles
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TL;DR​

  • MCP Connect Auth gives every published /skills listing a tenant authorization server — DCR, PKCE, protected-resource metadata, and federation to your existing sign-in.
  • Path B (bundle URL): publish, configure federation, point Claude/Cursor/ChatGPT at https://mcp.mcpbundles.com/bundle/{slug}/ — no pip install on your MCP server.
  • Path A (vendor origin): add mcpbundles-mcp-connect when clients hit your own MCP URL.
  • Full reference: MCP Connect Auth integration doc.

If you've tried to publish a remote MCP server and stalled on OAuth, you're not alone. Certified MCP clients expect dynamic client registration, PKCE, protected-resource metadata, and a coherent authorization server. Rolling that stack while also shipping tools is a common reason listings sit at /skills with zero connections.