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Tutorial · AI, actually!

How to Build a Voice Agent with Vapi (Integrated with Your Backend)

Build an inbound voice agent for a mock nail salon, connect it to backend APIs, and debug a real booking flow.

Published 16:35

Watch on YouTube ↗

My contribution

I build and explain the integration, test it by phone, and debug the API requests on screen.

In this video

  • Connect a voice agent to FAQs, service pricing, availability, and booking endpoints.
  • Expose a local backend with ngrok and configure the agent’s tools.
  • Use call logs to diagnose failed requests, then test a successful booking.