When a Zapier MCP tool call fails, your AI client may not display the error details. You can find the full failure details on your MCP server.
Symptom
A tool call fails in your AI client, but no error details are shown.
Causes
Some AI clients do not pass MCP error details through to the user interface. The error is still recorded on the server side, where you can view the request, the values used, and the failure reason.
How to fix it
- Go to the Zapier MCP dashboard and select your server.
- Select the History tab.
- Select the failed tool call to view the error details, including the values used and the output.
Still need help?
If this article did not fix the issue:
- Ask in the Zapier Community for advice from experienced Zapier users.
- Contact the Zapier MCP team for feedback or help.
- Learn more about getting help and support with Zapier.