VAPI
Vapi helps developers build, test, and deploy voice agents at scale. We enable everything in between the raw models and production, including telephony, test suites, and real-time analytics.
JoinV
VAPI
Vapi helps developers build, test, and deploy voice agents at scale. We enable everything in between the raw models and production, including telephony, test suites, and real-time analytics.
JoinUnexpected Multi-LLM Usage Causing High Call Costs
Hi Vapi team,
We’ve noticed an issue where one of our assistant calls was unexpectedly routed through multiple LLM providers, which caused unusually high costs.
Details:...
How to Send Workflow Variables via API Request or Custom Tool to Server in Vapi.ai
I’m building a workflow with Vapi.ai. I have variables, but I can’t send them to my Node.js server using an API request. In the first node of the workflow, I capture a serviceName value. How can I send this serviceName to my server in the next node using an apiRequest? How should the properties inside the request body be structured?
Workflow JSON
{
"name": "apiRequest_1756210376400",...
Urgent - Unable to pass variable to API Request Tool
Hi,
I’m trying to pass dynamic parameters (for example organization_id and agency_id, these are catched in assistant-request hook) in the HTTP request made by the API Request tool.
The Liquid syntax is displayed, but the values are never resolved. The same variables, however, are correctly populated both in the prompt and in the welcome sentence.
...
