Bulk SMS Gateway API

Fast SMS delivery.
Built for scale.

Send transactional alerts, OTPs, notifications, and marketing campaigns instantly through Bloomwire's reliable bulk SMS gateway API - with direct telecom connectivity.

Instant deliveryFast & reliable messaging
API readyEasy integration support
Enterprise scaleHigh-volume messaging
Bulk SMS Gateway
Live
Promotional campaign
Recipients12,450
Delivered12,406
Rate99.6%
Delivered
99.6%
Pending
0.3%
Failed
0.1%
99.6%Delivery rate
12,406Messages sent
Trusted by businesses across Sri Lanka

Bulk SMS built for speed and reliability

Delivering high-volume SMS messages with speed, reliability, and real-time tracking across Sri Lanka.

5M+
SMS delivered
99.9%
Delivery rate
<2s
Average delivery time
100+
Businesses using our platform
Supporting multiple industries
Healthcare
Retail & e-commerce
Financial services
Logistics
Education
High delivery reliability
Real-time delivery reports
Secure & scalable infrastructure
Local support team
Platform features

Everything you need for reliable SMS communication

More than just an API - a complete platform to send, manage, and track SMS messages at scale.

Bulk SMS sending

Send thousands of SMS messages instantly with high throughput and reliable delivery.

OTP & transactional SMS

Deliver time-sensitive messages like OTPs, alerts, and confirmations with speed and reliability.

High-speed API integration

Easily integrate SMS into your applications using simple REST APIs and fast response times.

Real-time delivery reports

Track message status, delivery rates, and performance with detailed real-time reports.

Promotional SMS campaigns

Run marketing campaigns and reach your customers instantly with targeted SMS messaging.

Seamless integration

Connect with your CRM, website, or internal systems to automate SMS workflows effortlessly.

Use cases

SMS solutions for every business need

Use SMS to deliver critical messages instantly, reach customers anywhere, and ensure high visibility.

OTP & authentication

Send secure one-time passwords instantly for login verification and transactions.

ExampleLogin OTPs, payment verification codes

Alerts & notifications

Deliver time-sensitive updates directly to your customers with guaranteed reach.

ExampleOrder updates, appointment reminders, system alerts

Promotional campaigns

Reach your audience instantly with targeted marketing campaigns and promotions.

ExampleDiscounts, offers, event promotions

Reminders & scheduling

Reduce no-shows and improve engagement with timely SMS reminders.

ExampleAppointment reminders, payment due alerts

Internal notifications

Keep your teams informed with real-time internal alerts and updates.

ExampleSystem alerts, employee notifications

Customer engagement

Maintain consistent communication and build stronger relationships with your customers.

ExampleFeedback requests, follow-ups, surveys
Pricing

Simple, transparent SMS pricing

Pay only for what you use. No hidden fees, no monthly charges, no long-term contracts.

Transactional SMS

LKR 0.50 / SMS
Inclusive of government taxes
  • High delivery priority
  • Ideal for OTP & alerts
  • Real-time delivery reports
No setup fees
No monthly charges
Instant activation
Pay-as-you-go

Estimate your monthly cost

Transactional (LKR 0.50)
Promotional (LKR 0.70)

Better value than traditional telecom SMS solutions — with faster setup, transparent per-SMS pricing, and full API control.

Why Bloomwire

Bloomwire vs other SMS providers

Compare features, pricing transparency, and ease of use across SMS gateway options in Sri Lanka.

Feature
RecommendedBloomwire
Local
providers
Telecom
providers
Global
APIs
Setup time
Instant
1–3 days
Days / weeks
Instant
Pricing transparency
Clear & upfront
Varies
Hidden / sales-driven
Clear but expensive
Developer experience
Simple & modern
Basic
Limited
Excellent
Local delivery optimisation
Sri Lanka optimised
Yes
Yes
Limited
Support
Local & responsive
Varies
Slow
Global, not local
Ease of use
Very easy
Moderate
Complex
Moderate

Bloomwire combines the reliability of local telecom infrastructure with the simplicity of modern developer tools and the pricing transparency that growing businesses actually need.

How it works

Start sending SMS in four simple steps

Get started with Bloomwire in minutes. You can integrate our SMS API immediately while we process your branded Sender ID verification.

1
You do this

Create your account

Sign up with Bloomwire and receive your SMS API credentials so you can begin integrating right away.

2
Verification

Approve your Sender ID

Submit your branded Sender ID for verification. Approval typically takes 1–2 business days.

3
We help here

Integrate & test

Connect your application using our REST API and test your messaging while your Sender ID is being approved.

4
You're live

Start sending SMS

Once approved, send OTPs, alerts, notifications, and campaigns with real-time delivery tracking.

Instant API access • Sender ID approval typically takes 1–2 business days
FAQ

Frequently asked questions

Learn more about bulk SMS, SMS APIs, OTP delivery, sender IDs, pricing, integrations, and enterprise messaging capabilities.

What is a Bulk SMS Gateway?

A Bulk SMS Gateway enables businesses to send SMS messages at scale through a secure platform or API. Common use cases include OTPs, notifications, alerts, reminders, customer engagement, 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. No setup fees, no monthly charges, pay only for what you use.

Does Bloomwire provide a Bulk SMS API?

Yes. Bloomwire provides a secure SMS API that enables developers to send OTPs, notifications, alerts, reminders, and promotional messages directly from websites, mobile applications, CRM systems, ERP platforms, and custom business software.

Can I send OTP and authentication messages through SMS?

Yes. SMS remains one of the most reliable channels for delivering OTPs, verification codes, login alerts, transaction confirmations, and security notifications with near-instant delivery.

Can I send promotional SMS campaigns?

Yes. Businesses can send offers, announcements, event invitations, customer engagement campaigns, and marketing communications through compliant SMS channels.

How quickly are SMS messages delivered?

Most SMS messages are delivered within seconds, making SMS ideal for time-sensitive communications such as OTPs, alerts, appointment reminders, and customer notifications.

Can I track SMS delivery status?

Yes. Bloomwire provides real-time delivery reports and message tracking, allowing businesses to monitor delivery performance, engagement, and campaign effectiveness.

Will SMS work on all mobile phones?

Yes. SMS is supported on virtually all mobile phones without requiring internet access, mobile applications, or smartphones, making it one of the most accessible communication channels available.

Can I use my business name as the SMS Sender ID?

Yes. Subject to telecom and regulatory approval requirements, businesses can use branded sender IDs so recipients can instantly recognize messages from their organization.

Is Bulk SMS better than email for urgent notifications?

For time-sensitive communications such as OTPs, appointment reminders, delivery updates, and alerts, SMS typically achieves higher open rates and faster delivery than email.

How do I choose the right Bulk SMS Gateway in Sri Lanka?

When selecting a Bulk SMS Gateway, businesses should consider delivery reliability, API capabilities, reporting features, support quality, scalability, and pricing transparency. Bloomwire combines these through a modern messaging platform designed for Sri Lankan businesses.

Still have questions?

Our local support team is here to help you get started.

Contact support
Ready to get started?

Start sending SMS to your customers today

Reach your customers instantly with reliable SMS delivery - OTPs, alerts, notifications, and campaigns. No approval process, instant activation.

Instant activation High delivery rates No hidden fees Local expert support
Bulk SMS Gateway Sri Lanka | SMS API Provider for OTP & Promotions | Bloomwire