Vapi is a developer platform for building and operating voice AI agents. The current docs highlight realtime conversations, phone and web integration, squads for multi-assistant handoffs, knowledge bases, call recording, testing, and MCP-based control.
Features
- Realtime voice conversations with natural turn-taking and sub-second response targets
- Phone-number management for inbound and outbound calls plus web voice embedding
- Squad orchestration for multi-assistant handoffs with shared conversation context
- Knowledge bases and custom retrieval backends for grounded answers
- Call recording, analysis, concurrency controls, voice testing, and MCP server support
So agents can…
- Run phone-based support, qualification, scheduling, and routing workflows
- Hand conversations between specialized voice agents without losing context
- Blend telephony, retrieval, and backend tool calls into one production voice stack
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