Bulk SMS sending
Send to thousands of customers at once from the web platform or the API.
Messaging · SMS Gateway
Bulk SMS gateway and SMS API for Sri Lanka
Fast SMS delivery, built for scale. Bulk SMS, OTP and transactional messages over a secure API, with real-time delivery reports and simple pay-as-you-go pricing for Sri Lankan businesses.
- LKR 0.50 per transactional SMS
- No setup fees or monthly charges
- Prices include government taxes
Trusted by businesses across Sri Lanka
Hutch EnterpriseLoan PlusDeep Tec EngineeringDamshen's HealthguardColombo Furniture HouseWisdom Digital SchoolOur work What you get
Everything you need for reliable SMS communication
OTP and transactional SMS
Deliver verification codes, login alerts and transaction confirmations with high delivery priority.
High-speed API integration
A secure SMS API lets developers send messages straight from your website, app or back-office systems.
Real-time delivery reports
See the status of every message as it is delivered, so you always know what reached your customers.
Promotional SMS campaigns
Send offers, announcements and event invitations to your customer list at a lower per-message price.
Seamless integration
Connect SMS to your CRM, e-commerce platform and other business systems.
How it works
Start sending SMS in four simple steps
- 01Create your account
Sign up with Bloomwire and tell us what you plan to send.
- 02Approve your Sender ID
We register your Sender ID so messages arrive under your brand name.
- 03Integrate and test
Connect through the API or the web platform and send test messages.
- 04Start sending SMS
Go live and send OTPs, alerts and campaigns, paying only for what you use.
Pricing
Simple, transparent SMS pricing
Pay only for what you use. No setup fees, no monthly charges and no long-term contracts.
Transactional SMS
LKR 0.50 / SMS
Inclusive of government taxes
- High delivery priority
- Ideal for OTPs and alerts
- Real-time delivery reports
Most popular
Promotional SMS
LKR 0.70 / SMS
Inclusive of government taxes
- Cost-effective bulk messaging
- Campaign-friendly
- High-throughput delivery
Better value than traditional telecom SMS solutions, with faster setup, transparent per-SMS pricing and full API control. Need higher volumes? Request custom pricing.
Use cases
SMS for every business need
OTP and authentication
Verification codes, login alerts and security notifications that reach customers on any phone.
Alerts and notifications
Order updates, payment confirmations and service alerts the moment they happen.
Promotional campaigns
Offers, announcements and event invitations sent to your whole customer base.
Reminders and scheduling
Appointment and payment reminders that cut no-shows and late payments.
Internal notifications
Keep staff informed with system alerts and rosters by SMS.
Customer engagement
Stay in touch with customers at the moments that matter.
Explore more
Works with the rest of the Bloomwire platform
Sending WhatsApp messages too?
See WhatsApp Business API pricing in Sri Lanka, in LKR, and compare it with SMS.
Guides and customer stories
Integrate, comply and see SMS at work
SMPP API integration
Connect your platform to the SMS gateway over SMPP.
SMS API for WooCommerce
Send order and delivery SMS from a WooCommerce store.
OTP with Verify API
One-time codes for sign-ups, logins and payments.
Sender IDs and rules (2026)
Branded sender IDs, the rules in Sri Lanka and how to choose a provider.
Gateway, API or portal?
Which way of sending SMS fits your business.
Customer stories
How DocNote.lk, Lakarcade, Pepper Street Clothing, JAS Active Wear and UHE Group use Bloomwire SMS.
What is a bulk SMS gateway?
A bulk SMS gateway lets businesses send SMS messages at scale through a secure platform or API. Common uses include OTPs, notifications, alerts, reminders and promotional campaigns.
How much does bulk SMS cost in Sri Lanka?
Bloomwire offers transparent per-SMS pricing: LKR 0.50 for transactional SMS and LKR 0.70 for promotional SMS, inclusive of government taxes. There are no setup fees or monthly charges.
Does Bloomwire provide a bulk SMS API?
Yes. A secure SMS API lets developers send OTPs, notifications, alerts, reminders and promotional messages directly from their own systems.
Can I send OTP and authentication messages by SMS?
Yes. SMS remains one of the most reliable ways to deliver OTPs, verification codes, login alerts and transaction confirmations.
Can I send promotional SMS campaigns?
Yes. You can send offers, announcements, event invitations and engagement campaigns through compliant SMS campaigns.
How do I get a Sender ID?
We register your Sender ID with you as part of setup and submit it for approval before you start sending.
Get started
Start sending SMS to your customers today.
Create your account and go live with transparent pay-as-you-go pricing.