One API. Four channels - SMS, Email, WhatsApp, Voice. Built for transactional scale across 200+ countries with smart failover and real-time delivery receipts.
Stop stitching three vendors. SMSUpDates routes across SMS, Email, WhatsApp, and Voice from a single endpoint with the same auth, the same DLRs, and the same dashboard.
Sub-second delivery across 800+ carriers in 200+ countries. DLT, 10DLC, and TRAI handled for you.
Learn moreTransactional email with 99.4% inbox placement. Templates, suppression lists, and bounce handling included.
Learn moreWhatsApp Business API with template approval, two-way replies, and rich media without the Meta paperwork.
Learn moreVoice OTP, automated reminders, and IVR flows. Multilingual TTS, call recording, and DTMF capture.
Learn moreIdiomatic SDKs in five languages. A Postman collection that actually works. Documentation that does not make you guess.
import { SMSUpDates } from "smsupdates";
const client = new SMSUpDates(process.env.SMSU_KEY);
await client.send({
to: "+91 98100 12345",
channel: "sms",
fallback: ["whatsapp", "voice"], // smart failover
template: "otp_login",
variables: { code: "384291" },
});{
"id": "msg_01HXR4P2K3JZQF",
"status": "queued",
"channel": "sms",
"fallback": ["whatsapp", "voice"],
"to": "+91 98100 12345",
"cost": { "amount": 0.18, "currency": "INR" },
"created": "2026-05-06T14:22:08Z"
}The boring infrastructure that keeps OTPs landing, alerts firing, and your on-call quiet without you owning a single carrier contract.
200+ countries, 800+ direct carrier routes, with regional pinning for India, UAE, EU, and the US.
Webhooks fire the instant a carrier confirms delivery. Event log, retries, and signed payloads.
DLT, TRAI DND, GDPR, India DPDP, opt-in and opt-out flows, IP whitelisting, and role-based access.
Define a channel ladder. If SMS fails, WhatsApp tries; if that fails, Voice. All in one API call.
End-to-end TLS, AES-256 at rest, ISO 27001, SOC 2 Type II in flight, SAML SSO, audit logs.
Multi-region, active-active. Public status page, real-time incident updates, refund-backed SLAs.
From a fintech doing 4M OTPs a day to a state utility broadcasting power-cut alerts, SMSUpDates handles the channel ladder, the compliance, and the carrier work.
Sub-second OTPs, transaction alerts, KYC reminders. DLT-compliant, audit-trailed, RBI-aware.
Power outages, bill reminders, meter readings at the scale of state utilities. SMS + Voice fallback.
Order confirmations, dispatch, OOS, returns. WhatsApp-first with SMS fallback for non-WA users.
Appointment confirmations, prescription pickups, follow-up surveys. HIPAA-aware data handling.
Government broadcasts, welfare updates, election info. Multi-lingual, regional scripts, offline-friendly.
Driver assignment, ETA updates, delivery OTPs, COD reminders. Voice for areas with patchy data.
Per-message pricing with volume tiers. No platform fee, no minimums, no surprise carrier surcharges.
No credit card. 1,000 free credits. Live API key the moment you sign up.