Messaging · SMS SMS API that delivers when every message matters.

OTPs, alerts, and marketing, with global delivery, carrier-grade routing, smart fallback, DLT compliance for India, and operator-level redundancy. Send a million messages or one. The same SLA either way. One integration covers SMS, WhatsApp, and RCS via the Unified Messaging API.

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Carrier-grade routing · DLT-compliant · 200+ countries · OTPs · Alerts · Marketing · Smart fallback
EnableX SMS API delivery anatomy: bulk and OTP, DLT-ready for India, sub-second delivery, RCS to WhatsApp to SMS cascade fallback
200+ countries
800+ carriers
<1s OTP delivery
DLT compliant for India

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.

Authentication

Sub-second OTP delivery

Tier-1 carrier routes for OTP and 2FA. Sub-second delivery on tier-1 corridors. Auto-fallback to voice OTP or WhatsApp if SMS fails.

Routing

Smart carrier-grade routing

Real-time route optimisation across 800+ carriers. Latency, cost, and deliverability scored per message. Auto-failover on carrier degradation.

Compliance

DLT for India, sender-ID worldwide

End-to-end DLT registration handled for India. Alphanumeric sender-IDs for 60+ countries. GDPR, DPDP, and HIPAA-grade controls.

Two-way

Inbound SMS & long codes

Receive SMS on dedicated long codes, short codes, and toll-free. Webhook on every inbound. Build STOP/HELP keyword automations in minutes.

Reporting

Real-time DLR & analytics

Per-message delivery receipts via webhook. Carrier-level deliverability dashboards. CSV and API exports for ops and finance.

Omnichannel

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.

BFSI

OTP & transaction alerts

Sub-second OTP for login and payment authentication. RBI-aligned alert flows for debit, credit, and balance updates.

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Insurance

Premium reminders & claims

Renewal reminders, policy issuance, and claim status updates with two-way reply for self-service confirmation.

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Retail / D2C

Order & delivery alerts

Order confirmation, dispatch, and out-for-delivery SMS at scale. Promotional broadcasts with DLT-approved templates.

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Logistics

Driver & rider notifications

Job assignment, ETA, and proof-of-delivery SMS for last-mile fleets. Two-way SMS for status updates from the field.

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Government

Citizen alerts & broadcasts

Aadhaar OTP-style flows, public-service alerts, and emergency broadcasts. On-prem deployment for sovereign requirements.

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Healthcare

Appointments & reminders

Visit reminders, prescription refills, and lab-result notifications. HIPAA-grade controls with audit trail.

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Spotlight · Smart routing & DLT

Guaranteed delivery globally, and fully compliant in India.

Most SMS APIs hand you a single route and hope. We score every message in real time across 800+ carriers, route on the path most likely to land, and handle the India DLT registration end-to-end, so your OTPs hit the inbox in under a second and your marketing isn't 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.
  • End-to-end India DLT: principal entity registration, header, content template, and consent, all handled by us.
  • Sender-ID registration in 60+ countries, with alphanumeric branding everywhere it's allowed.
  • SMS → WhatsApp → voice OTP fallback for guaranteed authentication delivery.
Talk to a routing specialist → See SMS pricing

Why EnableX SMS API vs Twilio, Plivo, or Kaleyra

Three things the messaging-only CPaaS players cannot match.

01

Carrier-grade routing & deliverability

Direct interconnects to tier-1 carriers across 200+ countries. Real-time route scoring. Sub-second OTP on India tier-1 corridors.

02

India DLT done for you

Principal entity, header, content template, and consent: we handle the full DLT stack. Most foreign vendors hand you a portal and a problem.

03

Full-stack: SMS + WhatsApp + RCS + Voice + Video

One platform, one bill, one SLA. Cascade automatically for omnichannel reach. On-prem deployment available for BFSI and government.

Built for SMS in
BFSI · DLT-compliant OTPs & alerts Insurance · Renewals & reminders Retail / D2C · National brands Logistics · Last-mile fleets Government · Citizen-services
Pricing

Pay-as-you-use SMS. No platform fee.

Per-message rates by destination and category. Volume discounts kick in automatically: the more you send, the less you pay. Free trial credits included, no credit card required.

See full SMS pricing → Start free trial
India transactionalFrom ₹0.12
India promotionalFrom ₹0.15
Global SMSFrom $0.005
Inbound long-codeFrom $1/month

SMS API FAQs

An SMS API lets businesses send and receive text messages programmatically via their software, apps, or CRM. It enables instant, automated communication without manual intervention, perfect for OTPs, alerts, reminders, and marketing.

The EnableX SMS API allows you to send bulk messages, OTPs, alerts, reminders, and marketing campaigns at scale, integrated into your existing workflows. Sub-second OTP delivery, smart carrier-grade routing, and DLT compliance for India are built in.

Yes. EnableX offers global SMS coverage across 200+ countries and 800+ carriers, with region-specific compliance support including DLT for India and sender-ID registration worldwide.

We use encrypted connections and comply with industry standards to ensure data privacy, message integrity, and regulatory compliance. India DLT, DPDP Act, GDPR, and HIPAA-grade controls are supported. Cloud, hybrid, and on-premise deployments are available.

Yes. Delivery receipts provide real-time updates on message status, so you know exactly when each SMS is delivered, failed, or pending. Webhooks push DLR events directly into your stack.

Pricing depends on your target regions, message volume, and message type (transactional vs. promotional). Refer to our SMS pricing page or contact our sales team for a custom quote with volume discounts.

Yes. EnableX's CPaaS platform supports SMS, WhatsApp, and RCS giving you a unified omnichannel strategy. Automatic failover means if RCS is not supported on a customer's device, messages cascade to WhatsApp or SMS to ensure reliable delivery.

EnableX is full-stack: SMS, WhatsApp, RCS, Voice, and Video on one platform with one bill. For India, EnableX manages end-to-end DLT registration and offers on-premise deployment for BFSI buyers under RBI and DPDP requirements. For APAC and Middle East buyers, EnableX is typically the stronger choice on price, support, and compliance posture.

Build with SMS API: Developer Docs

Prerequisite → SMS API → Regulations →

See EnableX in action.

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