Quickstart Guide

Send your first SMS message in just a few minutes.

Step 1: Get Your API Key

Sign up at sendly.live and navigate to the API Keys page to create your first key.

• Test keys (sk_test_*) - For sandbox testing, no real messages sent
• Live keys (sk_live_*) - For production, sends real SMS

Step 2: Send Your First Message

curl -X POST https://sendly.live/api/v1/messages \
  -H "Authorization: Bearer sk_live_YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "to": "+15551234567",
    "text": "Hello from Sendly!",
    "messageType": "transactional"
  }'

Step 3: Check the Response

{
  "id": "msg_abc123",
  "to": "+15551234567",
  "text": "Hello from Sendly!",
  "status": "sent",
  "createdAt": "2026-01-22T12:00:00.000Z"
}

Message Types

Next Steps

• Install an SDK for your language
• Set up webhooks for delivery status
• Test in sandbox with magic phone numbers