OTP and login codes
Verify sign-ups, logins and payments in seconds through the API.
YOURAPPYour YOURAPP code is 482913. It expires in 2 minutes. Do not share it with anyone.
5.0Rated by Sri Lankan businesses on Google
Sri Lanka’s Trusted Bulk SMS Solution
SMSlenz is a bulk SMS gateway that lets businesses in Sri Lanka reach customers on every mobile network. Send OTPs, alerts, notifications and campaigns from a simple dashboard, or connect our SMS API.
Free test credits when you register. No payment needed to try.
- Rs. 0.59 per SMS
- Free sender ID
- No monthly fees
We deliver the messages your customers actually read
SMSlenz delivers across Sri Lanka’s leading networks, so your OTPs, order updates, reminders and offers land on every phone fast and at a fair price.
Order and delivery updates
Confirm orders and share delivery dates automatically from WooCommerce or your own system.
YOURSHOPHi Nimal, order #1284 has been shipped and will arrive on Tuesday. Thank you for shopping with us!
Reminders and alerts
Cut no-shows and missed payments with a timely reminder.
CITYCLINICReminder: your appointment is tomorrow at 10:30 AM. Call 011 234 5678 to reschedule.
Offers in any language
Reach your whole list in English, Sinhala or Tamil.
YOURBRANDසති අන්ත
විශේෂ දීමනාව! සියලුම භාණ්ඩ සඳහා 20% ක වට්ටමක්. ඉරිදා දක්වා පමණි.
The leading bulk SMS gateway in Sri Lanka: fast, simple and affordable
One user-friendly dashboard for every campaign, contact list and delivery report, with the best SMS rates in Sri Lanka.
See all features-
Easy dashboard
Send, schedule and track every campaign from one screen.
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Advanced reports
Delivery status for every number, with filters to find what you need.
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Contacts from CSV
Import contacts in one click and organise them into groups.
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Personalised bulk SMS
Merge each customer’s name or details from a CSV into the message.
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Scheduled campaigns
Pick a date and time and the campaign sends itself.
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Birthday and anniversary wishes
Wish every customer by name on their special day, automatically.
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Festival greetings
Avurudu, Vesak, Deepavali or Christmas greetings that send themselves.
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Date reminders
Renewal and payment reminders a few days before the date.
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24/7 customer support
Real people on WhatsApp, phone and email whenever you need help.
From sign-up to your first message in three steps
No contracts and no technical setup. Test with free credits while your sender ID is being approved.
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Create account
Create your account
Sign up in a minute and get free credits to try the dashboard and the API before you pay.
Register now -
Request sender ID
Request your sender ID mask
Your brand name appears as the sender, so customers recognise and trust your messages. Approval usually takes one business day.
Request a sender ID -
Start sending
Start sending SMS
Send to one number, a contact group or a CSV list, or call the API from your own system.
Send SMS now
One simple price for every message
Rs. 0.59per SMS, flat rate
Taxes included. Pay as you go with no monthly fees, and top up whenever you need more credit.
- No monthly or yearly fees. Pay only for what you send.
- Credits never expire. Unused SMS stay in your account.
- Free sender ID mask. Send under your own brand name.
- Sinhala and Tamil included. Unicode messages at the same rate.
- One-time registration of Rs. 2,500. Visa, Mastercard or bank transfer.
Add SMS to your app in minutes
A plain REST API that works from PHP, Node.js, Python, Java, C# or any language that can make an HTTP request. Test with the SMSlenzDEMO sender ID before your own is approved.
- Send single, bulk and OTP messages
- Check balance and account status
- Ready-made WooCommerce plugin and Zapier integration
cURL
curl -X POST "https://mail.smslenz.lk/api/send-sms" \
-d "user_id=12" \
-d "api_key=YOUR_API_KEY" \
-d "sender_id=SMSlenzDEMO" \
-d "contact=+9476XXXXXXX" \
-d "message=Your code is 482913"// 200 OK
{
"success": true,
"message": "SMS sent successfully",
"data": { "status": "success", "pages": 1 }
}
What our clients say
5.0
Rated on Google
Reviews from businesses and developers who send with SMSlenz every day.
Read all reviews on GoogleI recently purchased an SMS Sender ID from SMSlenz, and I’m very satisfied with their service. The payment process was simple and convenient…
Highly recommended SMS gateway provider.
I worked with many teams before & activated many sender IDs. But, SMSLenZ team's support & quick activation is great. & also prices - reasonable ❤️
We've had a fantastic experience using SMSLenz for our messaging needs. The platform is reliable, fast, and incredibly easy to integrate with our systems.
SMSLenz has been a reliable and easy-to-use SMS gateway for our business. Fast delivery, great dashboard, and excellent support. Highly recommended!
I had a great experience using the SMSlenz.lk platform. Their support team was extremely responsive and helpful — they provided me with sample code that worked
Messages are being sent and delivered reliably, and the API is easy to work with. I really appreciate the level of support they offered and how developer-friendly it is.
Highly recommended for anyone looking for a reliable SMS API in Sri Lanka. Keep up the great work!
Ready to get started with SMSlenz?
Join hundreds of businesses that trust SMSlenz for their SMS messaging. Sign up for a free trial today and send your first message in minutes.