Top COIN GitHub Repositories & Tools (2026)

Official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler.

Who the good traders on Robinhood Chain are buying: resolved wallets, a 20-second on-chain tape, provenance on every fill, AI verdicts, bursts and exits. Site + Telegram bot + API. Runs on $0/month.

Bitcoin Core integration/staging tree

Accept Bitcoin payments. Free, open-source & self-hosted, Bitcoin payment processor.

OpenNumismat, is intended primarily for registering a collection of coins. But it is also suitable for other types of collectibles - stamps, postcards, badges and more exotic things.

Multi-wallet for Bitcoin, Ethereum, Binance Smart Chain and other emerging blockchains. Non-custodial storage, decentralized exchange, and extensive analytics for thousands of tokens and NFTs. Implemented on Swift.

Federated E-Cash Mint

Fault Tolerant Load Balancer for Ethereum and Bitcoin APIs

One person can become their own super-analyst. Try it online: https://myaistock.top

Lightning Network peer-to-peer exchange platform on Nostr

Lightweight typescript library for cross-chain wallets. Connect with multiple blockchains via a common interface, with support for the minimum features necessary.

Bitcoin / Alts private portfolio tracker, with email / text / alexa / telegram price alerts, charts, leverage support and much more.

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

A Python library for 'bitcoin cryptography'

An open-source campaign engine for launching and sniping your own tokens on Pons

the exit desk for robinhood chain · a sniper, a guard, a follow · reads by default, signs when you arm it

A production-ready PHP and Laravel SDK for Goldsky, providing typed access to its REST control plane, Subgraph GraphQL endpoints, and Edge JSON-RPC. Manage pipelines, subgraphs, webhooks, and Edge endpoints with reliable HTTP handling, pagination, error mapping, webhook verification, plus Laravel service-provider and facade support.

SMX · an open-source crypto paper-trading desk. Backtest farm, walk-forward optimizer, built-in AI agent, 110 exchanges, schema v2 strategies.

SDKs for CoinAPI & FinFeedAPI

Open-source, non-custodial, privacy preserving Bitcoin wallet for Windows, Linux, and Mac.