Developer-first transactional messaging platform. Deliver alerts, OTPs, and critical notifications to 180+ countries with enterprise reliability.
curl -X POST https://api.landomas.com/v1/sms \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"to": "+1234567890",
"message": "Your order has shipped!",
"callback_url": "https://your-app.com/webhook"
}'
// Response
{
"message_id": "msg_abc123xyz",
"status": "queued",
"cost": 0.0045
}Trusted by fintech, e-commerce, logistics, and enterprise platforms
Transaction alerts, fraud warnings, OTP authentication, balance notifications
Real-time tracking updates, delivery confirmations, driver assignments
Order confirmations, shipping updates, return processing, inventory alerts
Booking confirmations, reminders, cancellations, rescheduling notifications
System alerts, sensor triggers, maintenance notifications, threshold warnings
Employee OTPs, access codes, security alerts, system status updates
Appointment reminders, prescription alerts, test results, emergency notifications
Account activity, usage limits, billing updates, system maintenance alerts
Enterprise-grade reliability with simple integration
Clean, predictable API design with comprehensive documentation. HTTPS-only with JWT/HMAC authentication.
Multi-country carrier partnerships with A2P-compliant direct connections and intelligent routing.
Enterprise-grade security with full GDPR and DPA compliance. Encrypted transmission and storage.
Intelligent retry logic and message queueing ensure delivery even during carrier issues.
Comprehensive dashboard for API management, analytics, and message monitoring.
Official SDKs and code examples for faster integration in your preferred language.
Get started in minutes with our comprehensive documentation
POST https://api.landomas.com/v1/sms
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json
{
"to": "+1234567890",
"message": "Your OTP is 123456",
"callback_url": "https://example.com/hook"
}import requests
response = requests.post(
'https://api.landomas.com/v1/sms',
headers={
'Authorization': 'Bearer YOUR_API_KEY',
'Content-Type': 'application/json'
},
json={
'to': '+1234567890',
'message': 'Your delivery arrives today!'
}
)
print(response.json()){
"message_id": "msg_abc123xyz",
"status": "queued",
"to": "+1234567890",
"cost": 0.0045,
"segments": 1,
"created_at": "2025-10-28T10:30:00Z"
}const axios = require('axios');
const sendSMS = async () => {
const response = await axios.post(
'https://api.landomas.com/v1/sms',
{
to: '+1234567890',
message: 'Your order #12345 has shipped!'
},
{
headers: {
'Authorization': 'Bearer YOUR_API_KEY'
}
}
);
console.log(response.data);
};
sendSMS();Track message delivery in real-time
GET /v1/sms/{message_id}
Check remaining credits and usage
GET /v1/account/balance
Receive real-time delivery callbacks
POST your-domain.com/webhook
No hidden fees. No monthly commitments. Pay only for messages sent.
per SMS segment (160 characters)