Developer Docs
Build on the Callingtap API
The API reference is a live OpenAPI document generated from the production backend — not a hand-maintained page that can drift from what the server actually does.
OpenAPI reference
The full machine-readable spec — every public route, its parameters and its responses — is served directly by the API. It is public and needs no sign-in, and it contains no secrets.
Open the OpenAPI spec (JSON)Served from the live API host. Import the URL into Postman, Insomnia or any OpenAPI client to explore it.
Widget & webhook quickstarts
Embed the website widget, create your first agent, connect a phone number, understand credits and wire up webhooks — the practical guides behind the reference.
Open documentationSee it working first
Before writing any integration code, talk to six demo agents — a recorded sample or live voice — and see what the platform actually does.
Open product tours