Vapi

Vapi is a developer platform for creating advanced voice AI agents that can handle inbound and outbound calls. It provides sub-second latency, tool calling, and full control over models and prompts. Core capabilities include unified orchestration, real-time monitoring, configurable conversation flows, telephony integration, and enterprise-grade security. The platform supports multi-lingual agents, integrates API-first, and offers built-in guardrails to prevent hallucinations. Vapi fits developers and enterprises needing scalable voice automation for customer support, lead qualification, appointment scheduling, and more. Typical use cases include inbound support, outbound sales, healthcare call management, and staffing. It is trusted at scale, with over 1 billion calls supported and 99.9% uptime.