What is Vapi?
Vapi is an API-native platform built for developers who need serious voice AI capabilities. Instead of a point-and-click bot builder, it exposes voice agents as programmable infrastructure, with thousands of configurations and integrations available to shape behavior. Teams from early-stage startups to Fortune 500 companies use it to ship voice products and run phone operations at scale.
Vapi is a developer platform for building and running voice agents. A production voice agent has to capture speech, understand it, and respond naturally within a live conversation, and Vapi provides that pipeline through a single API so developers don't have to assemble the pieces themselves. Its API-native design makes it best understood as infrastructure: you configure agent behavior, connect your own tools, and manage calls in code.
That makes it suitable both for embedding voice into products and for operating phone systems under real load.

