cc · project
· Open source
started 2025-11-16
Ubique Pay
Cross-border payments: card in, USDT over the cheapest network, card out. One hardened Django app with a web UI, a REST API and a real Telegram Mini App.
Django
Python
TON
Telegram
The sender pays from a card, the value travels on-chain as USDT over the cheapest available network (TON, Solana or TRON), and the recipient is paid out to a bank card in local currency. Neither side ever sees the stablecoin leg — the “stablecoin sandwich”.
- Cheapest-network routing — a live quote engine prices the transfer and picks the lowest fee.
- Transparent quotes and a double-entry ledger — every fee is shown before confirming, every money movement is recorded.
- Adapter architecture — card acquiring, on-chain transfer and payout sit behind swappable providers (Transak/Banxa, TON, Visa Direct/Mastercard Send), so the whole flow runs end to end on mocks today.
- Security-hardened — Argon2, HSTS, CSP, OTP rate limiting, KYC gating and idempotent transfers.
- One-command install and deploy — Gunicorn, systemd and Nginx.
Every transfer follows a strict state machine: quoted → pay-in → on-chain → payout → completed, with failed → refunded on error.