Training
Learn to build with katembe
Learn to build, integrate, and scale with katembe. Free courses, certification tracks, and hands-on labs for developers and teams.
katembe Developer Series
Certification
Choose your learning path
Developer
Learn to integrate katembe APIs for applications of all sizes, from a single endpoint to multi-channel orchestration.
Integration specialist
Master webhook delivery, event handling, and reliability patterns for production-grade integrations.
Messaging
Deep dive into SMS, WhatsApp, USSD, and voice — covering delivery optimization and carrier compliance.
Verification
Build fraud-resistant onboarding flows with OTP, phone intelligence, and identity verification best practices.
Voice
Build programmable voice calls — IVR, text-to-speech, call recording, and carrier-grade reliability.
Platform engineering
Design multi-tenant communication architectures, manage rate limits, and operate katembe at scale.
Preview select courses without registering
Our eLearning content is free. Try a course before registering — no account required.
API fundamentals preview
New to katembe? Learn how authentication, requests, and responses work before writing a single line of code.
Webhook delivery preview
Understand how katembe delivers events and how to build reliable webhook consumers.
SMS delivery optimization preview
Learn how carrier routing, fallback logic, and delivery reports work to maximize successful message delivery.
Free courses — no registration required
Start immediately. All core courses are free and open — create an account only when you're ready to save progress.
Getting started
Create a workspace, get your API key, and send your first message in under 10 minutes.
Send your first message
Use the messaging API to send SMS, WhatsApp, and USSD from a single endpoint.
OTP verification
Implement one-time password flows for login, transaction approval, and number verification.
Webhook integration
Receive real-time delivery events and build reliable status-tracking workflows.
Build better communications
Start with free courses, earn a certification, and join thousands of developers building on katembe.