An order book implementation in Crystal.

Algorithmic Blockchain orderbook prototype

This project provides an API for placing orders (buy/sell).

🔁 Automate your trading on Polymarket with PolyMirror, an open-source bot that mirrors trades from selected wallets in real time, ensuring control and transparency.

Replay/analyse historical orderbook data

A simple orderbook implementation in Python with sorted lists.

Crypto order books scraper

Barebones orderbook implementation in Go.

this script downloads the full Level-3 Order Book in real-time from the Coinbase Trading platform https://pro.coinbase.com/, which is a digital currency exchange. This script enables you to maintain an accurate and up-to-date copy of the exchange order book.

Order Book Fast Algorithm develop by Alan Z. Valencia

Various implementations of matching engines for maintaining exchange orderbooks.

An orderbook implementation

Order‑book liquidity feature engineering + SHAP analysis (XGBoost) with Triple‑Barrier labels; reads OHLCV & depth from SQLite and saves plots to docs/images.

Explore Decentralized Exchange with Mode Orderbook.

An orderbook implementation with RiskControl model, which will execute self-cross checking and rate limiting. High performance using shared lock and lock free mechanism.

Trading Platform

Ultra-low latency price ladder component for real-time trading UIs. Cross-platform rendering (Web/WASM/Desktop) with <1ms updates, dirty region optimization, and Market-By-Order support. Native Canvas 2D on web, SkiaSharp on WPF/Avalonia.

Exchange Matching engine

This bot analyses the prices at particular depth levels of the bid and ask orderbook of all of the coins on Polo.

Low-latency system that consumes historical market data from Databento, passes it through a lock-free ring buffer, and processes it in a separate thread to compute a simple real-time statistic.