Open-source card payment network, build it yourself.

Run your own payment network end-to-end — switching, clearing, settlement, card issuing and acquiring — without the license fees or opaque vendor lock-in.

A complete Mastercard / Visa-style stack — ISO 8583 switching, clearing & settlement, double-entry ledger, issuing, acquiring, disputes and instant payments. Fork it, tweak it, ship your own network.