Has anyone successfully set up a Qualtrics MCP in Claude Code?

Hey Amstrau, seems like you're running into some hurdles getting the Qualtrics Public API MCP server up and running. The server is definitely live in production (like in yul1), but connectivity issues—especially those 405 errors—usually stem from the client trying to use a GET method instead of the required POST JSON RPC calls at the /mcp endpoint. 

One big change to keep in mind is that we’ve moved away from Dynamic Client Registration for security reasons. Now, your Brand Admin needs to pre-register an OAuth client using the Authorization Code grant type in the OAuth Client Manager. Once that’s set up with the right scopes, you’ll use those credentials for the flow. We've seen great results with clients like Cursor and Claude, but some others, like the Windsurf IntelliJ plugin, are still catching up on full OAuth support and might throw "Failed to initialize" errors.

If you’ve double-checked your HTTP methods and confirmed your API permissions are active but things still aren't clicking, it might be time for a deeper look. I’d suggest logging into the Customer Success Hub to get some direct eyes on your configuration: https://support-portal.qualtrics.com/

Switching to a known-working client like Cursor is a solid bet for testing in the meantime while we continue to improve compatibility across the board!