Open-source fintech software
684 open-source libraries, tools and applications tagged fintech, ranked by how closely fintech is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.
684 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| TradingAgents TradingAgents is a Python framework that orchestrates multiple LLM-powered agents to analyze financial markets and make trading decisions. … | 87 | 109273 | active |
| bitcoin/bitcoin Bitcoin Core is the reference implementation of the Bitcoin protocol, providing a full node, wallet, and optional graphical interface. It v… | 90 | 90328 | active |
| unionlabs/union Union is a trust-minimized zero-knowledge bridging protocol enabling general message passing, asset transfers, NFTs, and DeFi across Cosmos… | 78 | 73786 | active |
| OpenBB OpenBB's Open Data Platform (ODP) is an open-source Python toolset that integrates proprietary, licensed, and public financial data sources… | 85 | 73550 | active |
| virattt/ai-hedge-fund An educational AI-powered hedge fund simulator where LLM-driven agents modeled after famous investors analyze stocks and make simulated tra… | 87 | 63827 | active |
| ethereum/go-ethereum Go Ethereum (geth) is the official Go implementation of the Ethereum protocol, providing a full node client and development library. It ena… | 99 | 51390 | active |
| Qlib Qlib is an AI-oriented quantitative investment platform from Microsoft that supports the full quant research workflow, from data processing… | 66 | 48694 | active |
| VeighNa VeighNa (vn.py) is an open-source Python framework for developing quantitative trading systems, covering strategy development, backtesting,… | 83 | 45695 | stable |
| Hyperswitch Hyperswitch is an open-source, composable payments orchestration platform written in Rust by Juspay, connecting to 300+ payment processors,… | 95 | 45357 | active |
| Hyperswitch Hyperswitch is an open‑source, composable payments infrastructure written in Rust. It provides modular services for payment orchestration, … | 95 | 45357 | active |
| anthropics/financial-services A collection of reference AI agents, skills, and data connectors for financial-services workflows like investment banking, equity research,… | 59 | 38868 | active |
| HKUDS/Vibe-Trading Vibe-Trading is an open-source AI finance research agent that turns natural-language prompts into runnable market research, backtests, and … | 82 | 35591 | active |
| hsliuping/TradingAgents-CN A Chinese-enhanced fork of the TradingAgents multi-agent LLM framework for stock analysis and trading research, supporting A-shares, Hong K… | 62 | 32318 | active |
| Linera Linera is a Rust-based decentralized blockchain infrastructure that provides core protocol components, client/server logic, and cross-chain… | 84 | 32056 | active |
| Shardeum Shardeum is an EVM-compatible Layer 1 blockchain platform that uses dynamic state sharding for horizontal autoscaling, low fees, and fast f… | 41 | 31219 | active |
| virattt/dexter Dexter is an autonomous AI agent built in TypeScript that performs deep financial research by planning tasks, executing them with real-time… | 82 | 27647 | active |
| OpenZeppelin Contracts OpenZeppelin Contracts is a widely used open‑source library of audited Solidity smart contracts for Ethereum and EVM‑compatible blockchains… | 86 | 27253 | active |
| ranaroussi/yfinance yfinance is a Python library that fetches financial and market data from Yahoo! Finance's publicly available APIs, returning data as pandas… | 95 | 25373 | stable |
| Firefly III Firefly III is a free, self-hosted personal finance manager written in PHP. It tracks expenses and income, supports budgets, categories, ta… | 95 | 24886 | stable |
| HKUDS/AI-Trader AI-Trader is an agent-native trading platform where autonomous AI agents register, trade, and compete with live mark-to-market scoring and … | 53 | 22799 | active |
| QuantConnect LEAN LEAN is an open-source, event-driven algorithmic trading engine by QuantConnect supporting backtesting, optimization, and live trading acro… | 66 | 21779 | stable |
| AI4Finance-Foundation/FinGPT FinGPT is an open-source financial large language model project from the AI4Finance Foundation, providing domain-tuned models, fine-tuning … | 76 | 21352 | active |
| Hummingbot Hummingbot is an open-source Python framework for building, deploying, and running automated crypto trading bots across 300+ centralized an… | 94 | 20490 | active |
| Qbot Qbot is an AI-powered automated quantitative investment and trading research platform that runs fully locally. It combines machine learning… | 51 | 18568 | active |
| questdb/questdb QuestDB is an open-source, high-performance time-series database with a column-oriented, SIMD-vectorized SQL engine written in zero-GC Java… | 97 | 17440 | stable |
| Lightweight Charts TradingView's Lightweight Charts is a compact (~35 KB) TypeScript library for rendering fast, interactive financial charts (candlestick, li… | 93 | 17408 | stable |
| TigerBeetle TigerBeetle is a purpose-built financial transactions database written in Zig, designed for mission-critical safety and performance in onli… | 90 | 17185 | active |
| Hyperledger Fabric Hyperledger Fabric is an enterprise-grade permissioned distributed ledger framework written in Go for building blockchain solutions and app… | 93 | 16743 | stable |
| xbtlin/ai-berkshire A collection of AI research skills for Claude Code and Codex that systematizes the value investing methodologies of Buffett, Munger, Duan Y… | 60 | 16597 | active |
| FinRL FinRL is the first open-source deep reinforcement learning framework for financial markets, providing end-to-end pipelines to build, train,… | 77 | 16558 | active |
| dogecoin/dogecoin Dogecoin Core is the reference full-node client and wallet for the Dogecoin cryptocurrency, adapted from Bitcoin Core. It lets anyone run a… | 65 | 15232 | active |
| midday-ai/midday Midday is an open-source, all-in-one business management application for freelancers, contractors, and solo entrepreneurs, offering invoici… | 74 | 15028 | active |
| myhhub/stock InStock is a Python-based stock analysis system for Chinese A-shares and ETFs that captures daily market data, computes technical indicator… | 61 | 14527 | active |
| goldmansachs/gs-quant GS Quant is a Python toolkit for quantitative finance built by Goldman Sachs quants on top of their risk transfer platform. It supports der… | 95 | 13199 | stable |
| NoFxAiOS/nofx NOFX is an open-source, self-hosted AI trading terminal where a language model acts as the trading strategy, running a continuous decide-an… | 59 | 12945 | active |
| QuantDinger QuantDinger is an open-source, self-hosted AI quantitative trading platform covering crypto, stocks, and forex. It combines AI multi-agent … | 77 | 12068 | active |
| QUANTAXIS QUANTAXIS is a Python quantitative finance framework providing local data fetching, backtesting, simulated and live trading, visualization,… | 66 | 11252 | active |
| je-suis-tm/quant-trading A collection of Python scripts implementing quantitative and algorithmic trading strategies, including technical indicator strategies (MACD… | 68 | 11054 | active |
| ValueCell-ai/valuecell ValueCell is a community-driven, multi-agent platform for financial applications, providing AI investment agents for stock selection, resea… | 54 | 11031 | active |
| StockSharp StockSharp (S#) is an open-source algorithmic and quantitative trading platform for .NET and Python, providing a trading API, 70+ broker/ex… | 68 | 10925 | active |
| Lago Lago is an open-source metering and usage-based billing platform that ingests usage events, manages subscriptions and pricing, and generate… | 95 | 10699 | active |
| simonlin1212/a-stock-data A self-contained Skill file (structured Markdown with embedded Python) that aggregates China A-share market data from 19 sources into 54 re… | 80 | 10617 | active |
| we-promise/sure Sure is a self-hostable, open-source personal finance and wealth management web application, maintained as a community fork of the abandone… | 86 | 10600 | active |
| Polar Polar is an open-source billing and monetization platform that acts as merchant of record, offering usage-based billing, subscriptions, sea… | 96 | 10293 | active |
| Invoice Ninja Invoice Ninja is a source-available invoicing application for freelancers and small businesses, covering invoices, quotes, expenses, projec… | 95 | 10287 | active |
| shidenggui/easytrader A Python library for automated quantitative stock trading in the Chinese market, supporting THS client automation, miniqmt broker APIs, and… | 60 | 10210 | active |
| akaunting/akaunting Akaunting is a free, open-source online accounting application for small businesses and freelancers, built with Laravel, VueJS, and Tailwin… | 97 | 10159 | active |
| ghostfolio/ghostfolio Ghostfolio is an open source wealth management web application for tracking stocks, ETFs, and cryptocurrencies across multiple platforms. B… | 95 | 9448 | active |
| wealthfolio/wealthfolio Wealthfolio is an open-source, local-first personal finance and investment tracker built with Rust and Tauri. It tracks investments, net wo… | 92 | 9217 | active |
| polakowo/vectorbt VectorBT is a Python library for backtesting and analyzing trading strategies at scale, operating on pandas and NumPy objects accelerated b… | 88 | 9175 | active |
| kernc/backtesting.py Backtesting.py is a lightweight Python framework for backtesting trading strategies against historical candlestick data. It provides a smal… | 72 | 9067 | active |
| aeron-io/aeron Aeron is an efficient, reliable message transport supporting UDP unicast, UDP multicast, and IPC, with Java, C, and C++ clients. It include… | 98 | 8915 | stable |
| ellite/Wallos Wallos is an open-source, self-hostable web application for tracking personal subscriptions and recurring expenses. It offers category mana… | 90 | 8668 | active |
| Jesse Jesse is an open-source Python framework for researching, backtesting, optimizing, and live-trading cryptocurrency trading strategies. It i… | 77 | 8660 | active |
| timercrack/trader An automated futures trading application built around the CTP native gateway, with a pybind11 C++ bridge to the Thost API, a Python-side ga… | 60 | 8460 | active |
| smartcontractkit/chainlink Chainlink is the core node software of a decentralized oracle network that bridges smart contracts with real-world data and off-chain compu… | 99 | 8246 | stable |
| Lightning Network Daemon A complete implementation of a Lightning Network node written in Go, capable of opening and closing payment channels, routing onion-encrypt… | 95 | 8203 | stable |
| AI4Finance-Foundation/FinRobot FinRobot is an open-source AI agent platform for financial applications built on large language models, unifying LLMs, reinforcement learni… | 78 | 8140 | active |
| ArvinLovegood/go-stock A Wails + NaiveUI desktop application that combines stock market data (A-shares, Hong Kong, US markets) with LLM-powered analysis, includin… | 85 | 7891 | active |
| pythonstock/stock A full-stack stock analysis system built in Python using pandas, akshare, bokeh, stockstats, ta-lib, and tornado, deployed via Docker and d… | 56 | 7882 | active |
| BTCPay Server BTCPay Server is a free, open-source, self-hosted Bitcoin payment processor written in C#. It lets merchants accept direct, non-custodial B… | 99 | 7814 | stable |
| QuantLib QuantLib is a free, open-source C++ library providing a comprehensive framework for quantitative finance, including instruments pricing, mo… | 91 | 7681 | stable |
| ranaroussi/quantstats QuantStats is a Python library for portfolio analytics that computes performance and risk metrics like Sharpe ratio, volatility, and drawdo… | 79 | 7658 | stable |
| sngyai/Sequoia-X Sequoia-X is a Python-based quantitative stock screening system for China's A-share market that scans ~5200 stocks daily for technical patt… | 70 | 7638 | active |
| shopspring/decimal A Go library providing arbitrary-precision fixed-point decimal numbers to avoid floating-point rounding errors. It supports arithmetic oper… | 63 | 7484 | stable |
| sammchardy/python-binance An unofficial Python wrapper for the Binance exchange REST API v3, covering general, market data, and account endpoints with asyncio and we… | 83 | 7214 | active |
| tensortrade-org/tensortrade TensorTrade is an open-source Python framework for building, training, and evaluating reinforcement learning agents for algorithmic trading… | 58 | 7194 | active |
| wbh604/UZI-Skill UZI-Skill is a Python-based AI agent skill/plugin that performs deep stock analysis for A-share, Hong Kong, and US markets using 22 data di… | 73 | 7083 | active |
| Cosmos The Cosmos SDK is a modular open-source Go framework for building secure, high-performance application-specific blockchains with built-in i… | 96 | 7075 | stable |
| MikeMcl/bignumber.js A JavaScript library for arbitrary-precision decimal and non-decimal (base 2-36) arithmetic. It provides a full-featured BigNumber API with… | 76 | 7009 | stable |
| flexprice/flexprice Flexprice is an open-source usage-based pricing and billing platform for developers, offering real-time usage metering, credits and wallets… | 85 | 6894 | active |
| dinerojs/dinero.js Dinero.js is a JavaScript and TypeScript library for creating, calculating, converting, comparing, and formatting monetary values safely. I… | 88 | 6802 | stable |
| RQAlpha RQAlpha is an extendable, replaceable Python algorithmic trading and backtesting framework supporting multiple security types such as stock… | 96 | 6796 | active |
| internet-court/internet-court-skill An open Agent Skill / Claude Code plugin that acts as a trust layer for agent-to-agent commerce, combining natural-language mandates, ERC-7… | 55 | 6749 | active |
| OctoBot OctoBot is a free, open-source cryptocurrency trading bot written in Python that automates strategies such as AI-driven DCA, grid trading, … | 95 | 6731 | active |
| btcsuite/btcd btcd is an alternative full-node Bitcoin implementation written in Go that downloads, validates, and serves the blockchain using the same c… | 86 | 6712 | stable |
| tradesdontlie/tradingview-mcp An MCP bridge that connects Claude Code to a locally running TradingView Desktop app via Chrome DevTools Protocol, enabling AI-assisted cha… | 54 | 6710 | active |
| x402-foundation/x402 x402 is an open standard and SDK suite for internet-native payments built on the HTTP 402 status code, letting servers charge for API or co… | 64 | 6674 | active |
| Javen205/IJPay IJPay is a lightweight Java payment SDK that wraps WeChat Pay, Alipay, QQ Pay, JD Pay, UnionPay, and PayPal into a unified, framework-agnos… | 26 | 6603 | active |
| Jeepay Jeepay is an open-source aggregated payment system for internet businesses, supporting normal merchant mode, multi-channel service-provider… | 87 | 6438 | active |
| WonderTrader WonderTrader is a high-performance C++-core quantitative trading framework covering the full lifecycle from data ingestion and backtesting … | 74 | 6373 | active |
| waditu/czsc czsc is a technical analysis library implementing Chan Theory (缠中说禅/缠论) concepts like fractals, strokes, and pivots for stock and futures m… | 94 | 6349 | active |
| achannarasappa/ticker Ticker is a terminal-based application for watching live stock, cryptocurrency, and derivatives prices in real time. It also tracks the val… | 81 | 6241 | active |
| The-Swarm-Corporation/AutoHedge AutoHedge is a Python framework for building autonomous AI-agent hedge funds that automate market analysis, risk management, and trade exec… | 55 | 6217 | active |
| shy3130/tick-stock-panel A self-hosted, zero-ops quantitative workbench for China A-share stock screening, monitoring, and backtesting, built with Python (FastAPI, … | 82 | 6191 | active |
| thephpleague/omnipay Omnipay is a framework-agnostic, multi-gateway payment processing library for PHP that provides a single consistent API across dozens of pa… | 60 | 6063 | stable |
| Ledger Ledger is a powerful double-entry accounting system accessed from the UNIX command-line, written in C++. It reads plain-text journal files … | 81 | 6059 | stable |
| beancount/beancount Beancount is a double-entry bookkeeping tool that lets you define financial transaction records in plain text files. It parses the ledger, … | 73 | 6055 | stable |
| PyPortfolio/PyPortfolioOpt PyPortfolioOpt is a Python library for financial portfolio optimization, implementing classical mean-variance optimization, Black-Litterman… | 69 | 6051 | stable |
| Kill Bill Kill Bill is an open-source subscription billing and payments platform that manages subscriptions, invoicing, payment processing, and dunni… | 94 | 5801 | stable |
| go-pay/gopay GoPay is an aggregated payment SDK for Go that wraps WeChat Pay, Alipay, Douyin Pay, PayPal, Apple Pay, QQ Pay, Allinpay, Lakala, CMB, and … | 93 | 5788 | active |
| mayswind/ezbookkeeping ezBookkeeping is a lightweight, self-hosted personal finance and bookkeeping application built with Go and Vue.js. It supports transaction … | 95 | 5781 | active |
| AlphaGBM/skills A collection of 29 AI agent skills (plus a Python CLI) that provide real-data options and stock research intelligence for Claude Code, Curs… | 59 | 5678 | active |
| Superalgos/Superalgos Superalgos is a free, open-source crypto trading platform for visually designing, testing, and deploying algorithmic trading bots. It runs … | 66 | 5669 | active |
| CryptoSignal/Crypto-Signal CryptoSignal is a Python command-line tool that automates cryptocurrency technical analysis, tracking 500+ coins across exchanges like Bina… | 32 | 5640 | active |
| Uniswap Interface The open-source repository for Uniswap Labs' front-end interfaces, including the Uniswap web app, the Uniswap Wallet mobile app, and the wa… | 94 | 5534 | active |
| Reown AppKit Reown AppKit (formerly Web3Modal) is a full-stack SDK and UI toolkit for building onchain app user experiences, providing wallet connection… | 93 | 5446 | active |
| JerBouma/FinanceToolkit An open-source Python library providing 500+ transparent financial analysis methods covering ratios, DuPont and DCF models, risk metrics (V… | 99 | 5438 | active |
| shidenggui/easyquotation A Python library for fetching free real-time stock quotes from Sina, Tencent (including Hong Kong stocks), and Jisilu. It retrieves full-ma… | 60 | 5431 | active |
| Mathieu2301/TradingView-API An unofficial Node.js library for fetching real-time market prices, indicator values, and technical analysis from TradingView. It supports … | 70 | 5421 | active |
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