GRIN Gia MCP Server
GRIN's hosted remote Model Context Protocol server for Gia, its AI agent for creator marketing. GRIN documents that "Gia connects to Claude, ChatGPT, and other assistants that support MCP", and the endpoint answers live: every path returns HTTP 401 with an RFC 9728 challenge naming https://mcp.grin.co/.well-known/oauth-protected-resource, which in turn names the resource https://mcp.grin.co/mcp and the authorization server https://auth.grin.co/. The tool manifest is OAuth-gated, so tools/list could not be read anonymously.