WhatsApp API for your own software

The WaBaCRM API lets other software send messages from your WhatsApp number: an online shop sending order updates, a CRM sending reminders, or tools like n8n, Make and Zapier.

Messages go out through your WhatsApp Web tab. Keep WhatsApp Web open on a computer with WaBaCRM logged in. When the tab is closed, requests return 501 and nothing is sent.

Turn on the API

1. In WhatsApp Web, open API from the WaBaCRM menu (or More tools). The Configure API window opens.
2. Click Generate Token and switch Enable/Disable API on.
3. Copy the token with the copy button. It starts with wat_ and goes in the address of every request.

Important: Anyone with the token can send messages from your number. Keep it private, and generate a new one if it leaks.

Send a text message

Send a POST request with the phone number and the message:

POST https://login.waba-crm.com/ws-whatsapp-api/api/send-text/YOUR_TOKEN
Content-Type: application/json

{ "phone": "919876543210", "message": "Your order #1024 has shipped." }

Tools that can only open a link can use GET instead:

https://login.waba-crm.com/ws-whatsapp-api/api/send-text/YOUR_TOKEN?phone=919876543210&message=Hello

Phone numbers are the full number with country code, digits only: 919876543210 for India.

Everything the API does

Endpoint	What it does
send-text	Send a text message
send-image, send-video	Send an image or video, with an optional caption
send-document	Send any file as a document, such as a PDF invoice
send-audio	Send audio as a voice message
Labels	List labels, and add or remove them on numbers
Notes	Save a note on a contact
status	Check that WhatsApp Web is online

Files are sent as a base64 data URL, up to 40 MB each.

Full documentation

The interactive API documentation lists every endpoint with examples, in English, Hindi, Spanish and Portuguese. Use Try it out to send a test message with your token. Open Documentation in the extension's API screen opens the same page.

Official WhatsApp API

This API works through WhatsApp Web. If you need the official Meta Cloud API, with approved templates and no browser, use the Official API button in the extension, which opens MeAPI.