Repository Index

C#/.NET client library for the Binance.com cryptocurrency exchange REST and WebSocket APIs, supporting Spot and Futures trading and market data with strongly typed models.

• binance
• cryptocurrency
• tradeapi
• exchange

Apache OFBiz is an open source product for the automation of enterprise processes. It includes framework components and business applications for ERP, CRM, E-Business/E-Commerce, Supply Chain Management and Manufacturing Resource Planning. OFBiz provides a foundation and starting point for reliable, secure and scalable enterprise solutions.

• geospatial
• ofbiz
• web-framework
• java

Self-hosted AI trading terminal for Hyperliquid: chart read in, validated Freqtrade/Nautilus-Trader strategy out, deployed live.

• ai-agent
• freqtrade
• hyperliquid
• nautilus-trader

Super simple PDF invoicing

• pdf-invoice
• invoice-pdf
• pdf-generation
• prawn

Countries - ISO-639, ISO-3166 countries codes with subdivisions and names, ISO-4217 currency designators, ITU-T E.164 IDD phone codes, countries capitals, UN M.49 codes, IANA ccTLD countries domains, FIPS, IOC/NOC and FIFA codes, VERY VERY FAST, compatible with Databases/JSON/BSON/GOB/XML/CSV, Emoji countries flags and currencies, Unicode CLDR.

• go
• iso
• iso3166
• iso3166-1

SDK for growing mobile in-app purchases

• ios
• purchases
• iap
• sdk

💸 Lightweight currency conversion library, successor of money.js

• cashify
• money
• moneyjs
• cash

Get rich, or die codin'

• pfm
• personal-finance
• personal-finances
• money-manager

Build, Measure and Grow iOS subscription business

• ios
• in-app-purchase
• in-app-purchases
• in-app-receipt

Self-hosted, invisible CAPTCHA that detects AI agents driving real browsers. GDPR, WCAG 2.2 AA, and EAA: no cookies, no third-party data sharing, and no visual or audio puzzle. With a false-positive budget enforced in CI. Proof of work, drop-in for Turnstile and reCAPTCHA.

• anti-bot
• behavioral-analysis
• bot-detection
• captcha

Do stock correlations predict the market? 66 pre-registered tests, the data, and a triple pendulum that explains why not. If you have an idea you want me to try, submit it as a PR and I will test it and get back to you.

SaaS boilerplate/starter-kit in Go+React with Stripe integration, multi-tenant support, comprehensive features and AI-agent ready

• ai-agents
• go
• golang
• mcp-server

Econumo - A personal and family budgeting app with multi-currency support, shared accounts, and flexible budgets

• budget
• budget-app
• expense-tracker
• money-tracker

Yaffa is a personal finance web application, focusing on the support of long term financial planning.

Web application to manage CSA (Community Supported Agriculture), ACP (Agriculture Contractuelle de Proximité) or Solawi (Solidarische Landwirtschaft) organizations.

• acp
• csa
• rails
• ruby

Flare is a lightweight, developer-friendly Swift framework that simplifies working with in-app purchases. It provides a clean, unified API over StoreKit and StoreKit 2, includes async/await-ready workflows, and offers built-in UI components for a seamless integration experience.

• iap
• in-app-purchases
• macos
• swift

Support for In-App Purchase

:chart_with_upwards_trend: A live cryptocurrency historical trade data blotter. Download live historical trade data from any cryptoexchange, be it for machine learning, backtesting/visualizing trading strategies or for Quantopian/Zipline.

• cryptocurrency
• exchange
• trade
• data

Javascript SDK for trading on cryptocurrency exchanges like FTX, OKX, Bybit, and more. Supports API data feeds and WebSocket. Built by the Compendium Team.

• api-wrapper
• bybit
• bybit-api
• bybit-websocket

An event-driven library to manage and simulate Web Monetization.

• monetization
• web-monetization
• event-driven
• simulation

Support for In-App Purchase

Wallet info for your favourite Dotsama cryptocurrencies like Polkadot (DOT), Kusama (KSM), Moonbeam (GLMR), Astar (ASTR), Acala (ACA), Subsocial (SUB), and other Substrate chains in the ecosystem.

• acala
• asset-management
• astar
• crypto-portfolio

The PayPal Server SDK provides integration access to the PayPal REST APIs.

• api-integration
• checkout
• orders
• payments

Simple, modern ETH backtesting project using Pandas/Numpy: data prep, MA signals, portfolio simulation, and result visualization.

• algorithmic-trading
• cryptocurrency
• ethereum
• moving-average