USSD

Reach every phone, no internet required

Build interactive USSD menus that work on any mobile device — feature phones included. The only channel that reaches users with zero data and zero app installs.

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Safaricom MTN Vodacom Airtel Tigo

Why Katembe USSD

The channel that works everywhere

Zero internet required

USSD works on any GSM network — 2G, 3G, 4G — with no data plan needed by the end user.

Interactive menus

Build multi-step flows with numeric menus. Collect input, route users, and trigger actions in real time.

Session management

Handle concurrent USSD sessions with automatic state management and timeout handling.

Multi-carrier support

Single integration across all major African carriers. One API, every network.

Interactive flows

Build menus that guide users to action

Define multi-step USSD menus in code. Branch on user input, collect data, and trigger backend logic — all within a single session that lasts seconds.

Explore USSD docs

Financial services

The backbone of mobile money and banking

USSD is how hundreds of millions of users access mobile money, check balances, and transfer funds. Build on the same channel your users already trust.

Read the fintech use case

Simple integration

Webhook-driven USSD sessions

Katembe sends a webhook for each user input. Respond with the next menu or a final message. No persistent connection required — just a standard HTTP endpoint.

Read the USSD API reference

curl -X POST https://api.katembe.io/v1/ussd/sessions \
  -H "Authorization: Bearer <api_key>" \
  -d "shortcode=*384#" \
  -d "callback_url=https://your-app.com/ussd"

"USSD lets us reach customers in rural areas where smartphones are rare. Katembe made it as easy to integrate as any other channel."

James Omondi Head of Engineering, M-Soko

Pricing

USSD is coming soon

Join the waitlist to be first to access USSD when it launches. Enterprise early access available.

Join waitlist Contact sales