Open Source Fintech Projects
Fintech, or financial technology, applies software and digital infrastructure to financial services and operations. It addresses needs such as processing payments, managing subscriptions and billing, analyzing markets, assessing risk, and automating financial workflows. These tools can help organizations make financial processes more accessible, efficient, and adaptable while giving developers ways to inspect and extend the systems they rely on.
Open source fintech includes payment and billing platforms, accounting and investment tools, market data libraries, trading and risk systems, and software for financial research. When choosing a tool, consider its maturity, license, maintenance activity, security practices, regulatory requirements, and compatibility with existing systems and data. This area is useful to financial institutions, startups, researchers, developers, and individuals building or evaluating financial applications.
7 repositories · updated September 12, 2026
Intent-Plane: Fail-Closed Authorization Gate for AI Agent Actions
Intent-Plane is a fail-closed authorization gate designed for AI agents performing irreversible actions, ensuring every decision is deterministic and auditable. It provides a durable record that third parties can re-verify independently, without needing to trust the gate's internal code. This system is crucial for applications in fintech, payments, and treasury, where accountability and security are paramount.
AutoHedge: Build Your Autonomous AI Hedge Fund with Swarm Intelligence
AutoHedge is an enterprise-grade autonomous agent hedge fund that leverages swarm intelligence and specialized AI agents. This powerful Python project automates end-to-end market analysis, risk management, and trade execution. It allows users to build and deploy their own AI-driven trading strategies with minimal human intervention.
Lago: Open-Source Billing Platform for Usage-Based and Subscription Models
Lago is an open-source, AI-native billing platform designed for usage-based, subscription-based, and hybrid pricing models. It provides comprehensive infrastructure for metering, billing, and revenue management, enabling product-led companies to track and bill for any consumption. With its API-first approach and flexible deployment options, Lago offers a robust solution for modern billing needs.
Captable: Open-Source Cap Table Management, an Alternative to Carta
Captable is the #1 open-source cap table management platform, offering a robust alternative to commercial solutions like Carta, Pulley, and Angelist. Built with TypeScript, Next.js, and Prisma, it empowers startups and founders to manage equity, fundraising, and investor relations with transparency and control. This project aims to democratize cap table management, making it accessible and secure for all.
gs-quant: A Python Toolkit for Quantitative Finance
gs-quant is a powerful Python toolkit developed by Goldman Sachs for quantitative finance. It accelerates the development of trading strategies and risk management solutions, leveraging over 25 years of market experience. This toolkit is ideal for derivative structuring, trading, and data analytics applications.
FinRL: Financial Reinforcement Learning Framework for Automated Trading
FinRL is the first open-source framework for financial reinforcement learning, providing an ecosystem for automated trading in quantitative finance. It offers a comprehensive pipeline, various DRL algorithms, and support for multiple market environments and data sources, making it a powerful tool for researchers and practitioners.
FinGPT: Open-Source Large Language Models Revolutionizing Financial AI
FinGPT is an open-source initiative providing large language models specifically designed for the financial sector. It aims to democratize access to advanced AI for finance, offering cost-effective and adaptable solutions for tasks like sentiment analysis and robo-advisory, addressing the dynamic nature of financial data.