Apache Fineract

QuickFIX/J is a full featured messaging engine for the FIX protocol. - This is the official project repository.

Provides RESTful API, tools, adapters, and connectors for transparent access to open banking API's (for banks that support PSD2 and XS2A as well as HBCI/FinTS)

量化交易平台Java开源开发框架

Java Based EMV QR Code Generator and Parser (MPM, CPM)

Protocol level test automation solution for Fintech applications

iyzipay api java client

Date Calculators for Business /FX, FX Rate Calculator and Utils

Full stack web app with React and Spring Boot used for managing digital wallet and transactions

Test automation tool for Clearing, Settlement and Back-Office Systems

Read 13f filings and present them in a useful form such as a database.

Demo project using ISO20022 Message validation library from https://paymentcomponents.com

Intrinio Java SDK for Real-Time Stock Prices

The Linux Kernel Of Payments Infrastructures ; Enterprise Payments Aggregator for immutable reliability and forensic auditability. Rooted in Linux principles Of Community . No vendor lock-in—governance, code, and ledger all verifiable. Implements: idempotency, distributed retries, circuit-breaker

Java SDK for MANGOPAY

3rd Year University Undergraduate dissertation project, supervised by https://www.nottingham.ac.uk/computerscience/people/thomas.gaertner focusing on using Natural Language Processing, AI Portfolio Optimisation and Machine Learning to produce an Automated Trading Agent. Received 89% overall.

True-OOP Java client for API provided by https://finapi.io

Demo project using Swift MT Message validation library from https://paymentcomponents.com

KubePay is a Java 17+ financial demo leveraging Spring Boot 3 & Cloud for user registration, balance top-up, and fund transfers. Can be deployed on Kubernetes, it showcases microservice architecture, Domain-Driven Design, and integrates tools like Zipkin, Swagger/OpenAPI, and OpenFeign.