Everything you need to get Started with our SMS Gateway APIs.
SMS Gateway API Kenya from Celcom Africa empowers developers, businesses, and software providers to integrate enterprise-grade SMS functionality into their applications, CRMs, ERPs, and mobile apps. Our SMS Gateway API offers RESTful endpoints with comprehensive documentation, SDKs in multiple languages, and webhook support. Trusted by fintech companies, healthcare systems, e-commerce platforms, and enterprise applications across Kenya for OTP verification, transactional alerts, and automated notifications. With 99.9% uptime and real-time delivery tracking, integrate SMS seamlessly into your workflow.
Developer-friendly tools designed for seamless integration and scalability
Clean REST API architecture with comprehensive endpoints for sending, receiving, and tracking SMS. Real-time webhook notifications for delivery status, incoming messages, and failed deliveries ensure your application stays synchronized.
Pre-built SDKs for PHP, Python, Java, Node.js, C#, and more. Get started faster with code samples, documentation, and integration guides. Simplify your SMS Gateway API integration across any tech stack.
Industry-standard API key authentication with rate limiting and IP whitelisting. TLS/SSL encryption ensures secure transmission of sensitive data like OTPs and transactional messages.
Track every message with instant delivery confirmations via webhooks or API polling. Detailed analytics including delivery rates, response times, and network-specific performance metrics.
Enterprise-grade infrastructure with redundancy and failover mechanisms. Guaranteed 99.9% uptime ensures your critical OTPs, alerts, and transactional messages are delivered reliably.
Handle millions of messages per day with scalable infrastructure. Batch sending, asynchronous processing, and load balancing ensure consistent performance even during peak traffic.
Celcom Africa’s Bulk SMS API is designed to facilitate mass messaging. Send thousands of SMS messages with a single request, be it for alerts, notifications, or promotional messages.
Engage with your audience in real-time using our USSDs & Shortcodes API. Ideal for services that require immediate user interaction, such as surveys and voting systems.
With our Bulk Email API, you can reach a large audience with personalized and engaging newsletters, promotional emails, and more.
Powerful integration capabilities that accelerate development and enhance user experience
Get your SMS functionality live in minutes, not weeks. With comprehensive documentation, SDKs, and code samples, integrate our SMS Gateway API into any application quickly and efficiently.
Pay only for what you use, starting at KES 0.25/SMS. No setup fees, no monthly commitments. Scale from hundreds to millions of messages without infrastructure costs or maintenance overhead.
Built with security best practices for handling sensitive data. Perfect for OTP verification, two-factor authentication, and financial transaction alerts requiring bank-level security standards.
Trigger SMS automatically based on user actions, system events, or scheduled tasks. Build intelligent notification systems that engage users at the right moment with the right message.
See how businesses leverage our SMS Gateway API to enhance user experience and drive growth
A leading mobile money platform in Nairobi needed to improve OTP delivery speed for their 500,000+ active users. After integrating Celcom Africa's SMS Gateway API with webhook support, they achieved:
Explore API Documentation"The SMS Gateway API integration was seamless. The webhook support and real-time delivery tracking helped us build a more reliable authentication system. Our developers loved the comprehensive documentation."
An online marketplace needed to improve order confirmation delivery rates. By integrating our SMS Gateway API into their order management system, they implemented automated transactional messaging:
Explore Bulk SMS Services"The API integration was straightforward, and the support team helped us optimize our message templates. The real-time delivery reports helped us identify and resolve delivery issues quickly."
Build comprehensive communication solutions with our integrated messaging platform
Complete bulk SMS platform with web interface and API for marketing campaigns and notifications.
Learn MoreBuild interactive USSD menus and two-way messaging solutions with API integration.
Learn MoreComplete API documentation, code samples, SDKs, and integration guides for all services.
View DocsRegister custom sender IDs for branded API messaging that increases trust and delivery rates.
Learn MoreA bulk SMS gateway is a service that enables the automated sending of large volumes of SMS messages via an internet-connected platform or API. It acts as a bridge between software applications and mobile networks to ensure quick and reliable message delivery.
To send 10,000 SMS at once:
Ensure you have enough SMS credits and an approved sender ID to avoid delays.
Bulk SMS prices in Kenya typically range from KES 0.25 to KES 1.50 per SMS, depending on volume, delivery route (standard or premium), and sender ID status.
Celcom Africa offers the most affordable rates from KES 0.25 to 0.60, with discounts for large volumes.
A Bulk SMS API is an application programming interface that allows businesses or developers to integrate SMS sending functionality into their software, apps, CRMs, or websites. It enables automation of SMS notifications, OTPs, alerts, and marketing campaigns directly from your system.
Some SMS providers offer limited free credits or trial access to their SMS API, but regular usage requires purchasing SMS credits. Celcom Africa offers free testing API keys for developers and businesses looking to evaluate the service before full integration.
In short, the API is the “how”, and the gateway is the “where” the messages go.
Celcom Africa offers one of the most affordable and reliable SMS APIs in Kenya, starting at KES 0.25 per SMS. Their platform supports both local and international SMS, sender ID registration, and real-time delivery reports.
Join 500+ developers and businesses using Celcom Africa's SMS Gateway API Kenya to enhance user experience with reliable OTPs, transactional alerts, and automated notifications. Get started with free API keys and test credits - no credit card required.
99.9% Uptime SLA | Free API Keys | 24/7 Developer Support | KES 0.25/SMS Starting Price
