Vapi

Vapi is a developer platform for building voice agents. It gives you all the building blocks, like speech to text, AI models, and text to speech, and lets you plug in the providers you want.

What you can do with Vapi

• Build voice agents for phone and web calls
• Choose your own AI model, voice, and transcriber
• Connect agents to your tools with function calls
• Make and take phone calls at scale
• Monitor calls in real time
• Test agents automatically before launch

Who it's for

Vapi is aimed at developers and companies building custom voice AI products. It's more technical than no code voice tools.

Pricing

Vapi charges per minute, plus whatever the AI and voice providers you choose cost. You get free credit to start.

Alternatives to Vapi

Retell AI, Synthflow, and Bland are easier for non developers. ElevenLabs Agents is strong on voice quality.