Messaging

Send SMS and WhatsApp at global scale

One API for programmable SMS and WhatsApp delivery — with intelligent retry, template management, and real-time delivery tracking.

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Safaricom MTN Vodacom Flutterwave Jumo

Why Katembe Messaging

Built for reliable transactional delivery

Global reach

Deliver SMS and WhatsApp messages across 190+ countries through optimized carrier integrations.

Intelligent retry

Automatic failover and channel fallback ensure critical messages reach their destination.

Template management

Manage sender IDs, WhatsApp templates, and opt-out flows from a single control plane.

Delivery tracking

Real-time webhooks and delivery receipts for every message sent across every channel.

SMS

Transactional SMS that reliably reaches your users

Route SMS traffic through carrier integrations optimized for local delivery rates. Regional sender management, delivery receipt callbacks, and configurable retry policies keep your messages moving.

Explore SMS delivery

Template-driven WhatsApp with full event visibility

Send approved WhatsApp Business messages at scale. Manage templates, track delivery and read receipts, and handle opt-outs — all from the same API you use for SMS and voice.

Explore WhatsApp messaging

USSD

Reach every phone with interactive USSD menus

Build multi-step USSD flows that work on any device — feature phones, no data plan, no app. The channel that reaches users where nothing else can.

Explore USSD — join waitlist

Simple integration

One API for every messaging channel

Send to any channel by changing a single parameter. The same authentication, error handling, and webhook format across SMS, WhatsApp, and voice — no per-channel SDKs required.

Read the messaging API reference

curl -X POST https://api.katembe.io/v1/messages \
  -H "Authorization: Bearer <api_key>" \
  -d "channel=sms" \
  -d "to=+258840000000" \
  -d "message=Your order has shipped."

"We went from three messaging vendors to one. Katembe's unified API cut our integration complexity in half and improved delivery rates across every market we operate in."

Fatima Ndoye CTO, Sendwave Africa

Pricing

Simple per-message pricing

Pay as you go with no minimums. Volume discounts available for enterprise accounts processing millions of messages per month.

View messaging pricing Contact sales