The Convergence of Mobile Money and Crypto in Africa
·6 min readTwo systems, neither talking to the other
Africa did not go cash to cheque to card to digital. It went cash to mobile money, and it did so fast enough that in several countries mobile money accounts outnumber bank accounts. M-Pesa alone moves hundreds of billions of dollars a year. Anyone with a phone number has an account, and the agent network reaches places a branch never would.
Separately, stablecoins have become a serious way to move dollars across borders. A payment from Berlin to Nairobi clears in seconds, at any hour, on a weekend, without either party asking permission from an institution that may be closed or may decline for reasons it will not disclose.
Both systems work. Neither was built to talk to the other. The interesting engineering is entirely in the joint between them.
Why mobile money won locally
Mobile money succeeded because it met the constraints people actually had, rather than the ones a bank product assumes:
- A phone number is the account. No branch visit, no minimum balance, no proof of address.
- Agents handle the cash edge. Physical cash-in and cash-out where people already shop.
- Transfers complete in seconds, to anyone, at any hour.
- Small amounts are normal. The system was designed around them rather than tolerating them.
What it does not do is cross borders cheaply. Sending money into a mobile money wallet from outside the continent still runs through correspondent banking, which is slow, expensive at every hop, and opaque when it fails.
Why stablecoins are growing
Stablecoins solve the half that mobile money does not:
- Dollar-denominated savings in economies where the local currency has been losing ground.
- Borderless settlement with no correspondent chain and no cut-off times.
- Finality in seconds, at any hour, including weekends.
- Permissionless access, with no gatekeeper deciding who qualifies.
What they do not do is buy groceries. Landlords want M-Pesa. Suppliers want a bank transfer. Schools want a paybill number.
The joint is the product
So you get the situation almost everyone in this market recognises: paid in USDC by a client overseas, holding dollars that are unquestionably yours and final, and unable to pay rent with them.
Closing that gap is what stablecoin payment and settlement infrastructure is for. In practice it means a specific set of unglamorous things:
- Accepting stablecoins from wherever they already sit. Payers use whatever chain their own setup defaults to. Minisend takes USDC across 19 EVM chains and USDT across 15, plus both tokens on Solana, at one address.
- Not converting on arrival. A deposit credits as USDC into one balance and earns while it sits. The holder decides when they want shillings, and how much.
- Delivering into the rails people use. M-Pesa, Buy Goods tills, Paybill numbers, mobile money wallets, and bank accounts in Kenya, Nigeria, Ghana, and Uganda.
- Running in both directions. Local currency in, stablecoins out, over the same rails.
- Settlement in seconds, not days. M-Pesa in about 10 seconds; bank and mobile money in 5 to 30 minutes.
What changes when it works
When someone in Accra is paid in USDC by a client in Berlin and holds Ghanaian Cedi in their mobile money wallet minutes later, the transaction is not the interesting part. What changed is that onchain income became ordinary income. It can be planned around, budgeted, and used to pay a supplier on a date that does not move.
That is also what makes it usable by businesses rather than only individuals. A studio can quote in dollars and make payroll in local currency. An importer can hold a dollar float that earns while it waits for a shipment. A payroll operator can fund one USDC transfer and pay a thousand people in shillings.
None of that requires anyone to hold an opinion about blockchains. It requires the two systems to be joined properly, which is the work.
Further reading
For why the last leg is the hard part, see why stablecoin offramps matter for Africa. For the mechanics, start with how the one-address deposit works.
Frequently asked questions
- How do mobile money and stablecoins work together?
- They solve opposite halves of the same problem. Mobile money reaches almost everyone locally but crosses borders slowly and expensively. Stablecoins cross borders in seconds but cannot buy groceries. Settlement infrastructure joins them: stablecoins arrive from any chain into one balance, and the holder settles to M-Pesa, a mobile money wallet, or a bank account when they want local currency.
- Why is mobile money so dominant in Africa?
- It met the constraints people actually had. A phone number is the account, so there is no branch visit, minimum balance, or proof of address. Agent networks handle cash in and out where people already shop, transfers complete in seconds at any hour, and small amounts were designed for rather than merely tolerated.
- Can I receive a stablecoin payment directly into M-Pesa?
- Effectively, yes. The stablecoins arrive at your Minisend deposit address from whichever chain the payer used and credit as USDC. You then settle any part of that balance to M-Pesa, and the payout lands in about 10 seconds. Nothing converts until you choose to settle.
- Does the conversion only run one way?
- No. The same rails run in both directions. In Kenya you can pay with M-Pesa or Airtel Money and receive USDC on Base, in the same balance you settle out of. Businesses get the same pair through the merchant dashboard and API.