The embeddable widget is how your agents reach the world: a dependency-free script that boots a live call, binds it for metering, and hides every provider detail behind your brand.
Plain script, no framework, no build step, runs anywhere.
Every widget call is a real, billed session tied to your account.
Native Vapi WebRTC, plus an event hook for any other engine.
Origin allow-lists and short-lived tokens keep it yours.
No infrastructure to run, the platform provisions the agent on your chosen engine.
Pick the agent and the domains allowed to use it.
One <script> tag with your widget key.
Drop it on a landing page, app, or a client's site.