BigRadarDocs
Dashboard
Guides›Get started›Quickstart
Guides

Quickstart

An API key and one request — from zero to a delivered WhatsApp message.

  1. Generate an API key

    In the dashboard, go to Settings → API & webhooks and create a key. Copy it now — the full value is only shown once.

  2. Send a message

    to is the recipient's number in international format, no +. Swap in a real number and your key:

    POST /api/public/v1/messages
    bash
    curl -X POST 'https://api.bigradar.io/api/public/v1/messages' \ -H 'Authorization: Bearer YOUR_API_KEY' \ -H 'Content-Type: application/json' \ -d '{ "to": "919876543210", "text": "Hi from BigRadar!" }'

  3. Check the response

    A 200means BigRadar accepted and queued the message — not that it's delivered yet. conversation_id is the thread this message started or joined in your inbox.
    200 OK
    json
    { "success": true, "message": "Message sent successfully", "data": { "message_id": "wamid.HBgM...", "conversation_id": "a1b2c3d4-...", "to": "919876543210", "status": "queued", "timestamp": "2026-06-25T12:30:45Z" } }

Where to go next

Send media and templates cover richer message types — templates in particular let you message someone outside the 24-hour reply window. To receive replies and delivery events back, see Set up incoming message webhooks.