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.

Simple Open Source implementation of a deposit account application (ASPSP core-banking) from adorsys

A comprehensive, production-grade core banking system simulation built on the Jakarta EE 10 platform using EJB 4.0, Container-Managed Transactions (CMT), Hibernate JPA, Ehcache Second-Level Caching, Jakarta Security, and automated EJB Timer Services. Packaged as a multi-module Maven EAR application.

A premium console-based banking management system built in C++. It simulates real-world banking operations including account management, transactions, loans, security features, and data handling using file-based storage and OOP principles.

Enterprise-grade Core Banking System (CBS) built with PostgreSQL 17 and Node.js. Featuring advanced PL/SQL automation, ACID-compliant transactions, and a premium Zinc-style Bento dashboard.

Enterprise-grade core banking platform built with Jakarta EE 10, EJB, and modern web technologies. Features secure authentication, customer/account management, transactional integrity, automated timer services, multi-layer security, analytics integration, and responsive UI. Supports real-time fund transfers, PDF reports, and admin panel. Try Now 👇

A financial ledger service implementing double-entry bookkeeping as an isolated microservice

Open-source self-hosted, license-deployable core banking ledger engine. Double-entry, event-sourced, multi-currency.

Enterprise-grade Core Banking Settlement Engine built in COBOL. Processes high-volume daily batch transactions, performs exact decimal arithmetic using COMP-3 to prevent floating-point errors, and generates immutable financial reconciliation reports.

Complete end-to-end tutorial for creating, deploying, and integrating Jasper Reports in Finacle Core Banking System. Includes working example with stored procedures, deployment scripts, and configuration guides.

Precision 100 Framework Documentation

Sandbox Banking (now nCino Integration Gateway) is an Integration Platform as a Service (iPaaS) purpose-built for financial institutions.

Portfolio-grade core banking and payments API with an immutable double-entry ledger

TypeScript Azure Function middleware connecting D365 CE to SOAP/XML core banking systems (T24, Temenos). Production-tested pattern.

Core banking operations platform — customer management, deposits, withdrawals, account ledger

Core banking APIs from Temenos Transact, providing comprehensive banking functionality including accounts, transactions, payments, loans, and customer management.

Open-source reference stack for an event-driven financial digital twin with embedded compliance monitoring: CDC ingestion, stream processing, policy evaluation, and a tamper-evident audit ledger.

Ledger-based core banking API built with .NET 8. Guarantees atomic, crash-safe money transfers using immutable debit/credit entries, idempotency guards, optimistic locking, and JWT-based zero-trust security. Designed for correctness, auditability, and extreme concurrency.

APIs for Temenos banking and financial services platform, providing cloud-native, cloud-agnostic, API-first banking solutions including core banking, digital banking, payments, wealth management, financial crime mitigation, and more.