Send Bulk SMS
Smarter, Faster & Reliable in Tanzania

Keltap helps businesses send OTPs, alerts, and marketing SMS across Tanzania with high delivery rates and real-time tracking.

Get Started Contact Us
10M+
Messages Sent Monthly
99.9%
Delivery Rate
500+
Happy Clients

9:41 Keltap SMS OTP Verification OTP Sent +255 754 *** *** Delivered Code Verified +255 786 *** *** Delivered Login Alert Secure sign-in code
OTP Delivered
2 seconds ago
Secure Verification
99.9% success rate
API Connected
System Active
9:41 Keltap SMS Bulk Messaging Bulk Send Customer notice list 12,450 sent Delivery Report Real-time tracking 99.9% New Contact List 3,200 numbers imported
10,000 SMS Sent
Campaign complete
High Delivery Rate
Nationwide coverage
Instant Dispatch
Under 3 seconds
9:41 Keltap SMS Marketing Campaigns Promo Weekend Flash sale campaign 5,432 sent Loyalty Reward Points expiring soon 2,108 opened New Campaign Create bulk SMS
Campaign Live
5,432 sent
High Open Rate
2,108 opened
Promo Delivered
Just now
9:41 Keltap SMS Alerts & Notifications Payment Alert TZS 45,000 received Sent Appointment Reminder Tomorrow at 10:00 AM Sent Delivery Update Order out for delivery
Alert Sent
Instant delivery
Real-Time Updates
Always on time
Reminder Delivered
2 seconds ago
About Keltap

Tanzania's Leading Bulk SMS Platform

Keltap is a powerful bulk SMS platform built for businesses in Tanzania. Whether you're sending one-time passwords (OTP), customer notifications, or promotional campaigns, Keltap ensures your messages are delivered instantly and reliably.

Lightning Fast Delivery

Messages delivered in under 3 seconds with our optimized routing system.

24/7 Support

Our dedicated team is always ready to help you succeed.

Trusted Messaging Partner

Join hundreds of businesses across Tanzania who rely on Keltap for their SMS communication needs.

5+
Years Experience
50M+
SMS Delivered
Trusted Partners

Trusted By Leading Businesses and Organizations

From growing startups to established enterprises, businesses across Tanzania rely on Keltap to deliver every message that matters.

Features

Everything You Need for SMS Success

Powerful features designed to make your SMS campaigns effective and effortless.

Bulk Messaging

Send thousands of personalized messages to your contacts in seconds. Perfect for marketing campaigns and announcements.

OTP Verification

Secure one-time password delivery for user authentication. Fast, reliable, and perfect for financial applications.

Developer API

Simple RESTful API with comprehensive documentation. Integrate SMS functionality into your app in minutes.

Smart Routing

Intelligent message routing ensures optimal delivery paths and cost efficiency across all networks.

Real-time Analytics

Track delivery rates, open rates, and campaign performance with detailed analytics dashboard.

Schedule Messages

Plan your campaigns in advance. Schedule messages for optimal delivery times automatically.

Powerful Use Cases

Keltap helps businesses communicate smarter using SMS across Tanzania.

Bulk Messaging

Send thousands of SMS instantly to customers, clients, or members.

OTP Verification

Secure your apps with fast and reliable OTP SMS delivery.

Marketing Campaigns

Promote products and offers with high-open-rate SMS campaigns.

Alerts & Notifications

Send real-time alerts, reminders, and updates instantly.

Why Choose Keltap API

Built for developers and businesses who need speed, reliability, and scalability.

Fast Integration

Simple REST API with quick setup and easy documentation.

Secure OTP Delivery

Reliable and secure SMS delivery for authentication systems.

Real-Time Reports

Track message delivery and performance instantly.

Nationwide Coverage

Reach customers anywhere in Tanzania with high delivery rates.

Get API Access See Documentation
Send SMS · POST /api/v1/messages 
POST https://portal.keltap.co.tz/api/v1/messages
Authorization: Bearer YOUR_API_KEY
Content-Type: application/json

{
  "sender_name": "MYBRAND",
  "messages": [{
    "receiver": "0712345678",
    "content": "Hello Asha, your order is ready"
  }]
}

// 201 Created — message queued for delivery
Testimonials

What Our Clients Say

Join hundreds of satisfied businesses across Tanzania.

Keltap has transformed how we communicate with our customers. The OTP delivery is instant, and our transaction success rate has improved by 40%.
Baraka George
CTO, PNL Consulting
Keltap has transformed how we communicate with our customers. The OTP delivery is instant, and our transaction success rate has improved by 40%.
Baraka George
CTO, PNL Consulting
The API integration was seamless. Within hours, we had our SMS system running. The documentation is clear, and support is always responsive.
Fatima Kimaro
Lead Developer, Maadili Kwanza
We've tried other SMS providers, but Keltap offers the best combination of price and reliability. Our marketing campaigns have never been more effective.
AM
Ashiru Mussa
Marketing Director, Arusha Retail
As a healthcare provider, reliable communication is critical. Keltap ensures our appointment reminders and health alerts reach patients on time.
DSN
Dr. Sarah Nkya
Healthcare Provider

Ready to Transform Your Communication?

Join 500+ businesses in Tanzania who trust Keltap for their SMS needs. Start your free trial today.

Start Today Call Us Now
Contact Us

Get in Touch

Have questions? We'd love to hear from you. Send us a message.

Let's Talk Business

Whether you need a custom solution or just want to learn more about our services, our team is ready to help.

Our Office

Tabata , Dar es Salaam, Tanzania

Kilala - Usa-River , Arusha, Tanzania

Phone

+255 786 557 397

+255 744 667 397

Email

info@keltap.co.tz