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 check the request, the values used, and the failure reason.How to fix it
1
Open your server
Go to the Zapier MCP dashboard and select your server.
2
Go to the History tab
Select the History tab.
3
Inspect the failed call
Select the failed tool call to check the error details, including the values used and the output.
Still need help?
- Ask in the Zapier Community for advice from experienced Zapier users.
- Contact the Zapier MCP team for feedback or help.