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 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

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

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.

Precision 100 Framework Documentation

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

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.

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.

APIs for jack-henry

A COBOL banking system with AI integration. Built to learn how legacy code still powers modern banking.

Plataforma de Core Banking com Ledger Imutável (Append-Only), Compliance, PIX e Arquitetura de Dados Moderna (dbt/Airflow) sobre Kubernetes.

enterprise-grade polyglot JVM-based CBS engine built with Java, Kotlin, and Spring Boot

Production-style code samples from credit union core-system development on Symitar Episys (PowerOn / RepGen)

🏦 Simulación de un motor de transacciones bancarias core en Java 21, que demuestra patrones de POO empresarial, excepciones financieras personalizadas y pruebas unitarias automáticas con JUnit 5.