Messaging · SMS
SMS API and gateway for OTPs, alerts and campaigns.
Send OTPs, alerts, and marketing messages worldwide, with carrier-grade routing, smart fallback, sender registration handled per country, and operator-level redundancy. One integration covers SMS, WhatsApp, and RCS through the Unified Messaging API.
Send your first SMS in minutes
Authenticate with your App ID and Key, send one request, and it's delivered. Copy, paste, run.
curl -X POST https://api.enablex.io/sms/v1/messages/ \
-u APP_ID:APP_KEY \
-H "Content-Type: application/json" \
-d '{
"from": "+44999999999",
"to": ["+14155550100"],
"type": "sms",
"campaign_id": "your-campaign-id",
"template_id": "your-template-id",
"data_coding": "plain"
}'
const axios = require('axios');
const res = await axios.post(
'https://api.enablex.io/sms/v1/messages/',
{
from: '+44999999999',
to: ['+14155550100'],
type: 'sms',
campaign_id: 'your-campaign-id',
template_id: 'your-template-id',
data_coding: 'plain'
},
{ auth: { username: 'APP_ID', password: 'APP_KEY' } }
);
console.log(res.data);
import requests
from requests.auth import HTTPBasicAuth
res = requests.post(
"https://api.enablex.io/sms/v1/messages/",
auth=HTTPBasicAuth("APP_ID", "APP_KEY"),
json={
"from": "+44999999999",
"to": ["+14155550100"],
"type": "sms",
"campaign_id": "your-campaign-id",
"template_id": "your-template-id",
"data_coding": "plain"
}
)
print(res.json())
Everything a global SMS programme needs
Send SMS for OTP. Alerts. Marketing. Two-way SMS. One API, one bill, one SLA - from Mumbai to Manila to Manchester.
OTP delivery with fallback
Tier-1 carrier routes for OTP and 2FA, with auto-fallback to voice OTP or WhatsApp if SMS fails.
Smart carrier-grade routing
Real-time route selection across direct carrier routes scores latency, cost, and deliverability per message, with auto-failover on carrier degradation.
Compliance per country
Sender-ID and template registration handled per country, including India's DLT framework, with alphanumeric sender-IDs for 50+ countries and controls aligned with ISO 27001 and SOC 2 Type II.
Inbound SMS & long codes
Receive SMS on dedicated long codes, short codes, and toll-free, with a webhook on every inbound, and build STOP/HELP keyword automations in minutes.
Real-time DLR & analytics
Per-message delivery receipts arrive via webhook, alongside carrier-level deliverability dashboards and CSV and API exports for ops and finance.
Cascade to WhatsApp & RCS
One API call, three channels. Try RCS first, fall back to WhatsApp, fall back to SMS, or any cascade you define. Maximum reach, minimum cost.
Built for the SMS workloads that move money and people
BFSI, insurance, retail, logistics, government: the verticals where SMS is still the channel of record.
OTP & transaction alerts
OTP for login and payment authentication. Regulator-aligned alert flows for debit, credit, and balance updates.
Voice AI for bankingPremium reminders & claims
Renewal reminders, policy issuance, and claim status updates with two-way reply for self-service confirmation.
Voice AI for insuranceOrder & delivery alerts
Order confirmation, dispatch, and out-for-delivery SMS at scale. Promotional broadcasts with registered templates.
Retail and ecommerceDriver & rider notifications
Job assignment, ETA, and proof-of-delivery SMS for last-mile fleets. Two-way SMS for status updates from the field.
All solutionsCitizen alerts & broadcasts
Identity OTP flows, public-service alerts, and emergency broadcasts. On-prem deployment for sovereign requirements.
Talk to salesAppointments & reminders
Visit reminders, prescription refills, and lab-result notifications. HIPAA-ready controls with audit trail.
Voice AI for healthcareSmart routing globally, compliance handled per country.
Most SMS APIs hand you a single route and hope. We score every message in real time across direct carrier routes, route on the path most likely to land, and handle sender and template registration per country, so your OTPs are routed to arrive and your marketing is not filtered as spam.
- Real-time route scoring on latency, cost, and historical deliverability per corridor.
- Automatic failover: carrier degradation triggers re-route within seconds, no manual intervention.
- Registration per country handled by us. In India: principal entity, header, content template and consent under the DLT framework.
- Sender-ID registration in 50+ countries, with alphanumeric branding everywhere it's allowed.
- SMS → WhatsApp → voice OTP fallback so the authentication code still arrives.
Why teams build SMS on EnableX
What sets the EnableX SMS API apart.
Carrier-grade routing & deliverability
Direct interconnects to tier-1 carriers across 50+ countries, with real-time route scoring and automatic failover.
Compliance per country done for you
Sender-ID and template registration handled per country. In India, that means principal entity, header, content template and consent under DLT.
Full-stack: SMS + WhatsApp + RCS + Voice + Video
One platform, one bill, one SLA. Cascade automatically for omnichannel reach, with on-prem deployment available for BFSI and government.
Pay-as-you-use SMS. No platform fee.
SMS API FAQs
Build with SMS API: Developer Docs
See EnableX in action.
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