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THE FIRST COLLECTIONVectorBT is an open-source Python backtesting library that vectorizes strategy research: it packs thousands of parameter combinations into NumPy arrays and accelerates them with Numba and an optional Rust engine, plus portfolio analytics and interactive Plotly visualization.
Backtesting.py is a Python library for backtesting trading strategies. It offers a simple API, fast execution, a built-in optimizer, composable base strategies, and interactive visualizations for analyzing OHLC(V) financial data.
Hyperswitch is an open-source, composable payments infrastructure written in Rust. It connects to 120+ payment processors with intelligent routing, retries, a PCI-compliant vault, cost observability and reconciliation, and offers SaaS or self-hosted deployment.
OpenBB Open Data Platform (ODP) is an open-source toolset for integrating proprietary, licensed, and public financial data into AI copilots, research dashboards, and Python environments.
NanoPay is a JavaScript/TypeScript library for the Nano cryptocurrency network. It provides client workflows and low-level functions for accounts, local signing, block building, work generation, node RPC, sends, receives, representative changes, exact amount conversion, payment URIs, and confirmation watching. It supports ESM, CommonJS, TypeScript, and browsers, and is GPL-3.0-only.
