API Reference — WhatsApp Business API

WhatsApp Business API · OpenAPI 3.1 · Draft

Every endpoint, schema and webhook in one reference

Send any WhatsApp message type through one endpoint and receive signed delivery events. The interactive reference documents every request, response and webhook payload, and lets you build a request in your browser.

Authenticate with a scoped API key in the X-INFIQ-API-KEY header.
POST /messages takes the same body as Meta’s WhatsApp Cloud API and returns Meta’s response plus an InfiQ_traceid.
Send an Idempotency-Key on writes so a retry never sends twice.
Every webhook delivery is signed — verify the X-InfiQ-Signature header.

Download the OpenAPI spec

The viewer is a large download, so it loads only when you open it.

What happens next

We get back to youThe InfiQ team reaches out within one working day.
A demo around your use caseThe templates, flows and pricing that fit how you sell.
Live on the official APIMost teams send their first campaign the same day they sign up.