Get Started in 5 Minutes

Step 1: Download the App

First, download and install the Group SMS app on your Android phone. This app will act as your SMS gateway.

Step 2: Create an Account

Open the app and create your account using phone number verification.

1. 1.Open the Group SMS app
2. 2.Tap "Get Started" and enter your phone number
3. 3.Enter the verification code sent to your phone

Step 3: Generate API Key

Generate your API key from the app settings. This key will authenticate your API requests.

1. 1.In the app, tap the menu icon (☰) in the top-left
2. 2.Navigate to Settings > Developer API
3. 3.Tap "Generate API Key"
4. 4.Copy and securely store your API key

Step 4: Make Your First API Call

Try sending a test SMS using cURL. Replace YOUR_API_KEY_HERE with your actual API key and update the phone number.

curl -X POST https://api-2ue64mzmvq-du.a.run.app/api/v1/developer/send \
  -H "X-API-Key: YOUR_API_KEY_HERE" \
  -H "Content-Type: application/json" \
  -d '{"recipients":[{"phone":"+821012345678","message":"Test message from Group SMS API!"}]}'

{
  "success": true,
  "batchId": "batch_1736416234_a1b2c3",
  "totalCount": 1,
  "estimatedDeliveryTime": "2-5 minutes"
}

Step 5: Verify Delivery

Check that your message was sent successfully.

1. 1.Check your test phone - you should receive the SMS within 2-5 minutes
2. 2.In the Group SMS app, go to "Messages" tab to see sent messages
3. 3.Use the batch ID from the response to check status via the /status endpoint