---
title: "The CallWhiz AI API, SDK and webhooks"
description: "Everything the CallWhiz AI console does is an API call: manage agents, place calls, read call records, use the Web SDK for browser calling, and receive webhooks before and after every call."
url: "https://callwhiz.ai/docs/api"
updated: "2026-09-21"
---


# The CallWhiz AI API, SDK and webhooks

The CallWhiz AI API covers everything the console does, with bearer-token auth and a published OpenAPI description. Webhooks fire before a call to look the caller up and after it to file the result.

**In short:** Everything the console does is an API call, and every call can push events to your systems.

## Definitions

- **Webhook:** An HTTP call CallWhiz AI makes to your systems: before a call, so you can look the caller up, and after it, so you can file the result.
- **Signed token:** A short-lived credential the Web SDK uses for browser calling, restricted by a domain allow-list.
- **OpenAPI description:** The published, machine-readable description of the API.

## What it does

- Create and manage agents, place calls and read call records programmatically.
- Web SDK with signed tokens and domain allow-listing for browser calling.
- Webhooks before a call (to look the caller up) and after it (to file the result).
- Published OpenAPI description; bearer-token auth.

## Related questions

**Is there an API?** Everything the CallWhiz AI console does is an API call: create and manage agents, place calls and read call records programmatically. There is a Web SDK with signed tokens and domain allow-listing for browser calling, webhooks before a call (to look the caller up) and after it (to file the result), a published OpenAPI description and bearer-token auth.

**Can the agent connect to my calendar, CRM or internal systems?** CallWhiz AI agents call your systems mid-conversation: booking against a calendar, looking up a customer, an order or a balance, creating or updating a CRM record while the call is still running, or calling any internal API you give the agent as an action. Sensitive actions can sit behind a read-back-and-confirm gate.

## Related

- [How CallWhiz AI agents take actions mid-call](https://callwhiz.ai/docs/actions)
- [CallWhiz AI on the web, WhatsApp and mobile](https://callwhiz.ai/docs/channels)
- [Running CallWhiz AI as SaaS, in your cloud or on-premise](https://callwhiz.ai/docs/deployment)