How to configure my Vapi API Request tool so that on every inbound call it automatically sends the real caller’s phone number (e.g. +14155551234) in the request body to my n8n webhook instead of the literal {{call.from}}? Context: I’m building an inbound voice assistant in Vapi that uses a custom API Request tool (get_customer_info) to POST to our n8n webhook and look up callers in our CRM. Goal: On every inbound call, I need Vapi to automatically inject the real caller’s phone number (e.g. +14155551234) into the JSON body of that API request—rather than sending the literal template {{call.from}}.

To send the real caller’s number in your Vapi API Request tool, use {{customer.number}} not {{call.from}} in the request body. Vapi auto-replaces it on live calls before sending the request to your n8n webhook..