Overview
SMS-based cryptocurrency transactions for feature phones — send and receive crypto over a plain text message, with private keys secured by Multi-Party Computation for financial inclusion in low-connectivity regions.
Tech Stack
ReactNode.jsExpress.jsTwilioWeb3.jsethers.jsMPCEthereumAvalanche
Key Features
- Send/receive crypto by texting a formatted SMS (e.g. 'SEND 0.5 ETH TO 0x...') — no smartphone or internet required
- Twilio SMS gateway parses inbound messages, validates the request, and extracts amount and recipient
- Private keys split via Multi-Party Computation (MPC) so no single party ever holds the full key
- Transactions signed and submitted on-chain to Ethereum and Avalanche via Web3.js / ethers.js
- Aimed at financial inclusion for feature-phone users in rural, low-connectivity areas
Awards & Recognition
Winner — Coinbase Track, Unfold '24