Vapi

Vapi is a voice AI platform that gives developers the building blocks for real-time phone and in-app voice agents: low-latency speech recognition, model orchestration, natural interruption handling, telephony, and function calling into your own systems. Agents can book appointments, qualify leads, answer support calls and process orders in dozens of languages. Startups and enterprises use it to launch production voice assistants in days instead of assembling the stack themselves.