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SMSGo.lk

The #1 SMS Gateway Sri Lanka for Bulk SMS & OTP

Launch high-speed SMS marketing Sri Lanka campaigns, deliver instant OTPs, transactional alerts, and WhatsApp business notifications at the lowest SMS gateway price.

Premium SMS Gateway Sri Lanka Solutions

Reach and engage millions of customers across the island with our robust SMS gateway APIs and marketing tools.

OTP Verification API

Deliver secure 2FA One-Time Passwords within 2 seconds. Protect logins, checkouts, and signups.

Transactional Alerts

Trigger instant alerts for order updates, bank alerts, school notices, and booking details.

WhatsApp Business API

Engage customers with rich media templates, interactive quick reply buttons, and chatbot flows.

Sender Mask Approvals

Register and approve your custom brand sender mask (e.g. 'SMSGo') with all Sri Lankan operators in 24 hours.

Our Gateway Server Infrastructure

Learn how our high-performance nodes and direct routing servers power reliable messaging solutions.

E-Commerce automated alerts success case study visual

E-Commerce Gateway Servers

High-throughput SMPP servers dispatching transactional notifications and order alerts.

SMPP v3.4 Server Link

High-throughput direct connection

99.99%

Server SLA Uptime

< 2s

Avg. Delivery Speed

Instant OTP Verification success case study visual

Secure OTP Gateway Servers

OTP routing servers utilizing direct telecom channel binds for fast verification.

OTP Routing Node

Dynamic multi-route failover

100%

Secure SSL Encryption

Direct

Operator Gateway Binds

Promotional Bulk Campaigns success case study visual

Bulk Promotional Servers

Load-balanced message queues optimized for high-volume promotional delivery.

Load-Balanced Queue

Unthrottled carrier transmission

10K+

SMS per Second Speed

99.9%

Smart Queue Routing

Experience SMSGo.lk in Action

See how SMSGo.lk has supercharged real-world conversions and security metrics.

Custom Sender Masks

Custom Sender Masks
Developer-Friendly REST APIs

Developer-Friendly REST APIs

Enterprise-Grade Security

Enterprise-Grade Security

Real-Time Reports

Real-Time Reports

99.9% Uptime SLA

99.9% Uptime SLA

AI technology showcase dashboard visualization

Campaign Scheduler

Cheapest SMS Gateway Price & Pricing Plans

Compare our transparent SMS gateway pricing in Sri Lanka. Buy credits on a pay-as-you-go model with zero setup fees.

Starter

Perfect for small business alerts.

2,500 one-time

  • 5,000 free SMS included
  • LKR 0.50 per additional SMS rate
  • 1 Custom Sender Mask approved
  • Real-time delivery reports & REST API
Start free

Pro

Popular

Full access for growing brands.

10,000 one-time

  • 25,000 free SMS included
  • LKR 0.40 per additional SMS rate
  • Unlimited Custom Sender Masks
  • WhatsApp API sandbox & Dedicated Manager
  • 24/7 SLA support

Enterprise

Custom Direct SMPP. Tailored high-volume enterprise pipelines.

35,000 one-time

  • 100,000 free SMS included
  • LKR 0.35 per additional SMS rate
  • Unlimited Custom Sender Masks
  • Dedicated SMPP Channel Gateway
  • Official WhatsApp Verified Account setup
  • Dedicated Account Manager & 24/7 SLA
Start free

Integrate in minutes

A simple, elegant REST API so you can start sending SMS and OTP alerts instantly. We support all major environments and offer robust error logs.

send_sms.sh
// Send single SMS via cURL
curl -X POST https://api.smsgo.lk/api/v1/sms/send \
  -H "Content-Type: application/json" \
  -H "X-API-Key: sg_live_7a2b9c..." \
  -d '{
    "to": "94771234567",
    "message": "Your SMSGo verification code is 492019",
    "mask": "SMSGO"
  }'
Response (200 OK)
{
  "success": true,
  "data": {
    "id": "msg_cm1a2b3c40001",
    "to": "94771234567",
    "mask": "SMSGO",
    "status": "sent",
    "cost": 2.20,
    "sentAt": "2026-07-14T18:15:00.000Z"
  }
}
Include custom approved sender ID masks via the mask attribute. Obtain your production credentials from the SMSGo Dashboard.

SMSGo.lk works with your ecosystem

Plug our SMS API into your existing stack in minutes — no infrastructure changes required.

WordPress

WordPress

Send OTP verifications and order alerts directly from your WordPress or WooCommerce site.

NestJS

NestJS

Integrate our REST API into your NestJS microservices with our typed SDK and webhook support.

Shopify

Shopify

Automate order confirmations, shipment tracking, and cart recovery SMS from your Shopify store.

Laravel

Laravel

Use our Laravel package to send bulk SMS, OTPs, and notifications with a single line of code.

WooCommerce

WooCommerce

Trigger real-time SMS alerts for new orders, payment updates, and delivery status changes.

Stripe

Stripe

Fire instant payment receipt and fraud alert SMS messages tied to Stripe payment events.

Stay informed, stay ahead

Frequently Asked Questions

Get answers to your questions about our SMS Gateway Sri Lanka capabilities, SMS marketing campaigns, and pricing details.

Elevate your business with intelligent solutions

Connect with us to explore how SMSGo.lk can supercharge your business communication.

SMSGo.lk intelligent gateway solutions illustration