CHANNEL API • From $0.0065/msg
SMS API
Send high-volume transactional and promotional SMS with direct SS7 carrier interconnects, smart Unicode encoding, and real-time delivery receipts (DLR).
Live SMS API Tester● Sandbox Mode
Key Capabilities & Compliance
Direct SS7 carrier interconnects in 220+ countries
Automatic GSM-7 and Unicode character encoding
Real-time delivery receipts (DLR) with sub-second callbacks
Smart long-message concatenation up to 1,600 characters
10DLC registration, Alphanumeric Sender IDs, and Toll-Free numbers
Built-in Opt-Out & Unsubscribe processing
Developer Quickstart
Integration Code Sample
const NexusComms = require('@nexuscomms/sdk');
const client = new NexusComms('nx_live_key');
async function sendSms() {
const message = await client.sms.send({
to: '+14155552671',
from: 'NEXUS',
body: 'Your verification code is 849201. Valid for 10 mins.'
});
console.log('Delivered in:', message.latencyMs, 'ms');
}Regional Delivery & Rate Benchmark
| Country / Region | Starting Rate | Avg DLR Latency | Telco Route Type |
|---|---|---|---|
| United States & Canada | $0.0065 / msg | 18ms | Direct AT&T / T-Mobile 10DLC |
| United Kingdom & EU | €0.0078 / msg | 24ms | Direct Vodafone SS7 |
| Singapore & Southeast Asia | $0.0085 / msg | 32ms | Singtel Direct Route |
| India & South Asia | ₹0.18 / msg | 22ms | DLT Approved Direct Route |
Frequently Asked Questions
How does 10DLC registration work?
NexusComms provides automated brand and campaign registration for US 10DLC directly inside the Developer Portal.
What is the maximum throughput?
Default tier supports 500 SMS/second. Enterprise tier scales up to 10,000 SMS/second.