VAPI•2mo ago

error when calling my agent

im getting thise error when i try to talk with my agent, i tried to switch m cluster to "weekly" instead of daily in my org settings and the changes wont stick, is it an issue with vapi or me?

Vapi Support BotAPP•11/11/25, 7:17 PM

Thank you for sharing the error details. The error code call.in-progress.error.vapifault-anthropic-400-bad-request-validation-failedcall.in-progress.error.vapifault-anthropic-400-bad-request-validation-failed typically points to a validation issue in the Vapi processing pipeline, which can be caused by misconfigurations or invalid input values according to the documentation I have found.

To help narrow down the cause, could you please confirm if any other changes (such as assistant ID, phone number, or prompt settings) were made around the same time as switching your cluster from "daily" to "weekly"? This will help determine if the issue is related to the cluster setting or another configuration.

Source:

Vapi Call Ended Reason Documentation

⤵️ Mention @Vapi Support Bot for follow-ups 🐥

cold-orangeOP•11/11/25, 11:12 PM

there were changes made to the prompt, but the issue is my cluster doesnt actually change frm daily to weekly too, i tried to switch it and it always jsut switches back to daily after i close the page

cold-orangeOP•11/12/25, 4:37 PM

where would the invalid input values be do you think? because i can talk with the agent if i swap the model off of Anthropic, but the issue is that Anthropic works best with this current agent

KyleAPP•11/18/25, 4:27 AM

I sincerely apologize for the delayed response to your support request.
We implemented better tracking for support tickets to ensure timely responses going forward, but due to a technical limitation, this only applies to tickets created after this past week.
I'm closing this older ticket, but if your issue still needs attention, please:
Reply with 'REOPEN' or
Email support@vapi.ai with any updates
I'll personally ensure your new request gets prompt attention.
Thank you for your patience.
Best regards,
Vapi Support Team

error when calling my agent

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