---
title: "build custom ai voice agents using vapi for your business"
url: https://zinnhub.com/zinns/build-custom-ai-voice-agents-using-vapi-for-your-business/
description: "Proof of concept AI voice agent so you can understand what it will sound like with your workflow | AI Web Development Expert With Over 30 AI Projects Experience"
published: 2025-11-18T13:48:17+00:00
modified: 2026-01-16T18:36:35+00:00
language: en-GB
---

# build custom ai voice agents using vapi for your business

Transform your business with cutting-edge AI voice agents powered by Vapi and FastAPI! Zinn Digital® specialises in creating intelligent voice solutions that can handle customer enquiries, book appointments, qualify leads, and automate phone interactions 24/7.

What you get:

- Custom AI voice agent built with Vapi platform
- Robust FastAPI backend for seamless integrations
- Natural conversation flows and voice personality
- Real-time webhook integrations with your systems
- Phone number setup and call routing
- Knowledge base training with your business data
- Complete deployment and testing

Perfect for:

- Customer service automation
- Lead qualification and booking
- Appointment scheduling
- Support ticket routing
- Sales calls and follow-ups

Based in London, England, Zinn Digital® has 5+ years of AI and custom software development experience. We have extensive experience working with Vapi, FastAPI, and voice AI technologies. Each voice agent is custom-built for your specific use case with natural conversation abilities and seamless system integrations.

Ready to revolutionise your phone communications? Let’s build your AI voice agent today!

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### This Zinn Will Include (Proof of Concept)

Proof of concept AI voice agent so you can understand what it will sound like with your workflow

**Delivery:** 3 days

**Revisions:** 0

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### Upgrade Options

Choose an upgrade addon to get more features:

| Feature | Basic | Boost Upgrade | Premium Upgrade |
| --- | --- | --- | --- |
| **Delivery** | 3 days | 14 days | 30 days |
| **Revisions** | 0 | 1 | 1 |