Currency data API
Simple and elegant invoicing solution
ThetaGang is an IBKR bot for collecting money
Open Source Metering and Usage Based Billing API
Firefly III: a personal finances manager
A unified API for trading across prediction markets
AI-driven, local-first quantitative trading platform for research
Fast, privacy-focused personal finance app
Google Sheets Python API
Investment research for everyone, anywhere
Main engine of the IronCalc ecosystem
Online Accounting Software
Open Data, more than 50 financial data
Open-source pricing and billing infrastructure
A high-performance algorithmic trading platform
Tool for producing high quality forecasts for time series data
Reference agents, skills, and data for the financial-services
Data science spreadsheet with Python & SQL
Currency exchange rates library
Time series forecasting with PyTorch
Yahoo! Finance market data downloader
A nimble options backtesting library for Python
Reverse engineering API
Profesionalna integracja z Krajowym Systemem e-Faktur (KSeF)
The free and Open Source productivity suite