This repository is a comprehensive, production-oriented algorithmic trading framework implemented in TypeScript. It is organized as a monorepo with six interdependent packages: `trading-signals` (100+ technical indicator implementations with streaming `add`/`replace` semantics, each verified against external reference data like Tulip Indicators and Skender.Stock.Indicators), `trading-strategies` (strategy base classes, concrete strategies such as SMA crossover, scalp, trailing stop, and a multi-indicator confluence strategy, plus a backtesting engine and report generators), `exchange` (abstract broker interface with real implementations for Alpaca and Trading212, including mock broker for backtesting, candle batching, WebSocket streaming, and a CLI tool), `messaging` (a Telegram bot for managing accounts, strategies, watches, and reports via multi-step wizards), `candles` (labeled historical candle datasets for testing), and `trading-signals-docs` (a Next.js documentation site with interactive indicator demos and a visual backtester). The architecture emphasizes clean separation between signal generation, strategy logic, broker execution, and user interface. The indicator library is the core asset, providing a consistent contract (`IndicatorSeries`, `TechnicalIndicator`, `TrendIndicator`) with rich signal detection and state rollback. The strategy framework supports live trading and backtesting via the same advice-execution pipeline. The project is actively maintained with CI/CD, mutation testing, and a well-defined broker integration template. While the codebase shows high craftsmanship in its indicator implementations and test patterns, the large number of indicators and hand-derived test fixtures introduce maintenance overhead, and the tight coupling to Telegram limits platform portability.
OsEngine is a comprehensive, multi-exchange algorithmic trading platform for desktop (WPF/WinForms hybrid). It provides data downloading (OsData), backtesting (OsTester), walk-forward optimization (OsOptimizer), and live trading (OsTrader) with support for 30+ exchange connectors (MOEX, Binance, Bybit, OKX, Interactive Brokers, etc.). The platform includes a built-in technical indicator library (100+ indicators), a trading robot framework with attribute-based registration, and an MCP (Model Context Protocol) API for external AI/automation control. The architecture is modular: separate executables for different modes, a common server abstraction layer, and a consistent parameter system for bots and indicators. While the codebase is large and well-organized, it suffers from significant duplication across exchange connector entity classes and some copy-paste logic in trading robots. The UI mixes WPF and Windows Forms, and some patterns are legacy. Overall, it is a production-grade algorithmic trading platform with strong engineering practices and a rich feature set.