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Vapi
Developer platform for building, testing, and deploying voice AI agents over phone and web
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About Vapi
Vapi is an API platform for voice agents. It handles the real-time pipeline of speech-to-text, LLM, and text-to-speech so you can focus on the agent's behavior.
What it does
- Inbound and outbound phone calls, plus web voice widgets
- Choose your own transcriber, model, and voice providers
- Tool calling and workflows to connect agents to your systems
- Testing, call logs, and analytics
Used for appointment booking, support lines, lead qualification, and other phone workflows.
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