Top FINANCE GitHub Repositories & Tools (2026)

POS open-source, simple things only need simple solutions

Fast FIX protocol library for the JVM

Stock scanner with multiple fundamental and technical criteria. Features 80+ filters, AI chatbot (Groq/DeepSeek/Gemini), theme discovery, and StockBee-style breadth indicators.

Self-hosted, open-source financial data MCP server for AI agents — SEC filings, XBRL financials, 13F holdings, insider & congressional trades, short interest, FRED, CFTC/CBOE and daily prices across 64 MCP tools. Equibles Cloud adds earnings call transcripts, live quotes, options chains with Greeks, guidance and a screener.

Opensource FinTech standards & payment provider data

FMS, an agent-based Financial Market Simulator

A Discord bot and CLI tool for automating Reverse Split Arbitrage stock trading!

Free, open source trading terminal. Agentic IDE for Python strategies and backtests. LSE market data integrated; connects to other data providers and brokers.

Self-hosted Subscription Tracker

Open source analytics and market risk library from OpenGamma