"GoHighLevelMCPCredential or its authenticationSession not found" All GoHighLevel native tools failing with the same error on every call: "GoHighLevelMCPCredential or its authenticationSession not found" Affects all 4 tool types: contact get, contact create, calendar availability check, calendar create event. Already tried: - Reconnecting GHL integration with fresh API key - Connecting GHL MCP via OAuth through marketplace - Recreating all 4 tools from scratch - Same auth error every single time Org ID: 069b3179-d24a-4aaa-a615-9079a27056b0 Call IDs: 019d7414-5522-7119-afab-96e3a804ef3d, 019d740f-3e3d-788e-8dfa-0f578e981402 Has anyone found a working fix for this? Saw similar threads from February still marked unsolved. Is there a proper OAuth connection step I'm missing or is this a backend issue on Vapi's side?

Hi, Unfortunately both the integration related to GHL are having issues. Our team is actively working on it. Thank you. Regards, Oshi

I have a working fix for this and that's through making use of external integration tools like make.com pending the time that vapi will fix the issue... If you are interested in this we can hop on the call and fix it together Thanks

That error usually means the MCP auth session isn’t actually being attached at runtime, even if the OAuth flow “looks” connected super frustrating when every tool fails like that. I’d double check if the MCP connection is scoped to the same org/project the tools are running in, and confirm the auth session is being passed in the tool call context (this is where it often breaks). Also worth forcing a full disconnect → revoke → reconnect from marketplace to refresh the session binding, not just the API key. I’ve helped fix this exact issue before, happy to take a quick look with you. Are your tools running under the same workspace where the MCP OAuth was completed? @Jan

This is incorrect @Matt