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Vapi

Developer platform for phone voice agents

Vapi preview

About

Ship a phone agent without building the stack

In Vapi, an assistant is a configurable pipeline of transcriber, model and voice, and squads hand calls between specialised assistants while keeping context. It includes phone numbers, SIP and Twilio or Telnyx transport, call simulation and monitoring. A CLI and a hosted MCP server connect Vapi to coding agents and other MCP clients.

Features

  • Mix any STT, LLM and TTS provider
  • Squads for multi-assistant handoffs
  • Phone numbers, SIP and call testing
  • CLI and hosted MCP server

Install

  • Claude Code
  • Codex
  • Cursor
  • Grok Bot

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