Vapi

Vapi is a platform that helps developers build voice AI agents that can talk with people over the phone or inside apps. Instead of coding audio streaming, transcription, and text to speech from scratch, developers connect these pieces through Vapi and focus on the conversation logic.

It combines speech to text, a language model, and text to speech, and lets teams pick their preferred providers or bring their own keys. Agents can answer or place calls, use tools to look up data or take actions, and hand off between specialized assistants for more complex tasks.

Companies like Amazon Ring and Intuit use Vapi to power support, sales, and scheduling calls at scale.

• Real-time voice conversations with low latency

• Speech to text, language model, and text to speech in one platform

• Bring your own AI models and API keys

• Inbound and outbound phone call support

• Custom tools and webhook actions

• Multi-agent handoffs with Squads

• Call recordings and analytics dashboard

• SOC 2, HIPAA, and PCI compliance

• Full REST API and CLI access

• Embed voice calls inside web apps