Transactional SMS API Kenya
Alerts, receipts and notifications that reach every phone
Transactional SMS is the dependable delivery layer for OTPs, payment receipts, appointment reminders and operational alerts in Kenya. This guide covers the architecture, sender ID, delivery reports and fallback decisions that matter in production.
Last updated August 2026
Use transactional SMS when the message is time-sensitive and the customer must receive it even without mobile data, a smartphone or an app. Combine it with WhatsApp and email when the journey needs richer interaction.
Before you start
Registered Kenyan business and sender ID
REST API credentials and a secure server
Delivery-report webhook endpoint
Consent and opt-out handling for promotional traffic
Retry and duplicate-message protection
A test plan for Safaricom, Airtel and Telkom
How to do it in Kenya
A practical, compliance-aware walkthrough you can follow today.
Choose the message type
Separate OTPs, payment receipts and service alerts from promotional campaigns so templates, consent and reporting remain clear.
Connect the API
Send JSON requests over HTTPS with a bearer token from your backend. Never expose API secrets in browser code.
Register a sender ID
Use your business name and complete the required operator approval before production traffic.
Handle delivery reports
Receive webhook callbacks and store message ID, recipient, network, timestamp and final status.
Add controlled retries
Retry only transient failures, use idempotency references and prevent duplicate OTPs or receipts.
Transactional SMS API Kenya questions, answered.
The practical questions Kenyan organisations ask about transactional sms api kenya, with straight answers and KES pricing where it applies.
Still have a question? Talk to us →MobiWave supports Safaricom, Airtel and Telkom in Kenya.
Related resources
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