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Convo is a WhatsApp Business API platform that lets you programmatically send messages to customers, manage contacts, run marketing and transactional campaigns, and receive real-time event notifications via webhooks. Whether you’re building a CRM integration, sending order updates, or running broadcast campaigns, Convo provides the API surface to do it all.

Quick Start

Make your first API call and send a WhatsApp message in minutes

Authentication

Learn how to authenticate your API requests with Convo

Send Messages

Send text, images, videos, documents, and interactive messages

API Reference

Explore the full REST API with request/response examples

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What You Can Build

Messaging

Send template messages, rich media, and interactive flows to your customers

Campaigns

Create API-driven campaigns and track delivery, read rates, and replies

Contacts

Manage your contact list with custom attributes, tags, and opt-in controls

Webhooks

Receive real-time notifications for message events and contact updates

Catalogues

Showcase your products with WhatsApp-native catalogue and shopping messages

Templates

Submit and manage WhatsApp Business Message Templates for approval

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Get Started in 3 Steps

1

Get your API credentials

Log into your Convo dashboard, navigate to Settings, and copy your Project API Password (X-API-WA-Project-API-Pwd). You’ll use this header on every API call.
2

Create or find your Project ID

Every WhatsApp number on Convo is associated with a Project. Find your Project ID in the dashboard — it’s required as a path parameter for most API calls.
3

Send your first message

Call POST /project/{project_id}/messages with a recipient phone number and a text body. See the Quick Start guide for a complete working example.
Convo operates on top of the WhatsApp Business Platform. All outbound messages to users who haven’t messaged you first must use an approved Message Template. See Templates for details.