Bitcoin GitHub Repositories (2026) · Open Source Tools

Comprehensive Bitcoin development library for Android, implemented on Kotlin. SPV wallet implementation for Bitcoin, Bitcoin Cash, Litecoin and Dash blockchains. Fully compliant with existing standards and BIPs.

Backend services powering Arkade, an open execution engine for Bitcoin.

Self-custodial wallet SDK for TypeScript

Explore transactions and accounts on the Stacks blockchain. Clone any contract and experiment in your browser with the Explorer sandbox.

Swift cryptography library for Bitcoin and Nostr. ECDSA, Schnorr, ECDH, and zero-knowledge proofs on secp256k1. Apple platforms and Linux.

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

BitPay App (formerly Copay) is a popular Bitcoin and other crypto currencies wallet platform for IOS/Android.

Cove - The simple bitcoin wallet

XChange is a Java library providing a streamlined API for interacting with 60+ Bitcoin and Altcoin exchanges providing a consistent interface for trading and accessing market data.

Manage your cold storage wallets.

A Python library for 'bitcoin cryptography'

https://VergeCurrency.com - Official Site of Verge Currency ($XVG) :globe_with_meridians:

Rust implementation of the Alpen protocol

Bitcoin Payments Made Simple

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.

Daily updates of 1-minute BTC/USD candle data from Bitstamp, with historical data since 2012.

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

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.