Authentication

Every API request must include your API key in the Authorization header.

Create an API key

1. Go to Settings → API Keys
2. Click Create API Key
3. Give it a name (e.g. "Zapier Integration" or "My App")
4. Select which WhatsApp connection it should use for sending
5. Copy the key — you can only see it once

Use the key

Add it to every request as a Bearer token:

Authorization: Bearer YOUR_API_KEY

Example request

curl -X POST https://app.salesbyte.in/api/v1/messages \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"to": "+919876543210", "text": "Hello from the API!"}'

Key security

• Store your API key as an environment variable — never hard-code it
• Each key is linked to one WhatsApp connection
• You can revoke a key any time from Settings → API Keys
• Set an expiry date on keys for extra security

Error responses