core-banking

Source-available, cloud-native ledger platform for building financial infrastructure — multi-currency, multi-asset, double-entry accounting with n:n transaction support.

Open-source core banking platform — 61 DDD domains with event sourcing, CQRS, and a schema-first GraphQL API. Multi-asset accounts, exchange, lending, compliance, x402/MPP machine payments, and a non-custodial wallet backend. Laravel 12 / PHP 8.4. Reference implementation: the GCU basket currency.