Send your first message in 5 minutes

Sign up for a free WSAPI account using your email, Google, or GitHub credentials. No credit card is required to start your 14-day trial.

After registering, you'll be taken directly to the pairing page. Scan the QR code with your phone to connect your WhatsApp account; the pairing guide covers re-pairing and session expiry. You can also access this anytime from the /dashboard.

Copy your Instance ID from the instance detail page. Then generate your API Key in /app/settings. These two values authenticate every API request.

x-api-key: YOUR_API_KEY
x-instance-id: YOUR_INSTANCE_ID

Use the following cURL command to send a text message. Replace the placeholder values with your actual credentials and the recipient phone number (including country code, no + or spaces). The quickstart in the docs runs the same flow with the response payloads spelled out.

curl -X POST https://api.wsapi.chat/messages/text \
  -H "Content-Type: application/json" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "x-instance-id: YOUR_INSTANCE_ID" \
  -d '{
    "to": "1234567890",
    "text": "Hello from WSAPI!"
  }'