Fonbnk

Fonbnk is a Web3 on-ramp, off-ramp, and settlement platform for fintechs, crypto wallets, and exchanges that need to convert local prepaid payments into stablecoins across African markets.

Key capabilities include:

• Prepaid-to-stablecoin conversion for users paying with airtime, mobile money, and bank transfers, supporting both buy and sell (on-ramp and off-ramp) flows.
• Multi-chain settlement with support for stablecoins such as USDC, USDT, and cUSD, and integrations across networks including Ethereum, Polygon, Celo, Stellar, Solana, TRON, Avalanche, Base, Optimism, and Arbitrum.
• Integration options for businesses, including a zero-code widget, a merchant dashboard to configure integrations and monitor orders, a server-to-server API for quotes and integration, and webhook events for tracking client orders.
• Liquidity marketplace model that matches transactions with local liquidity providers to support availability and pricing for on and off-ramp services.

Available via Web (buy/sell checkout), embeddable widget, and developer API, plus a widget designed for integration into partner apps.

Target users include crypto businesses (exchanges, wallets, fintech platforms) serving mobile-first, underbanked customers in cash-based economies.

Fonbnk is notable in Sub-Saharan Africa for enabling dollar-denominated stablecoin settlement using existing telecom and local payment rails, with supported activity across markets such as Uganda, South Africa, Nigeria, Kenya, Tanzania, Ghana, and additional countries listed on its site.