iOS nostr client

Inheritance Bitcoin Smart Contract

Optimized C library for EC operations on curve secp256k1

Demo Progressive Web App using Flask

Orbot VPN app for iOS

Generates test vectors for the fidelity bonds BIP document

MyCitadel Wallet app for Linux, Windows & MacOS desktop made with GTK+3

Kotlin Multiplatform Library for embedding Tor into your application

expose bitcoin-core rpcs as clightning rpcs

Elliptic Curve, Schnorr, and ZKP for Bitcoin. Supports iOS macOS tvOS watchOS visionOS + Linux.

🔧 Create macOS VPNs programmatically (L2TP & Cisco)

A Nostr relay server framework.

Swift (SPM) package for the BBqr library

accumulator for bitcoin utxo set

Tor resources for kmp-tor

❄️ Firmware and simulator for Coldcard Hardware Wallet

Payjoin over Nostr

Bitcoin Optech website

observe forks on all Bitcoin networks (mainnet, testnet, and [custom] signets)

Tooling to monitor for P2P anomalies and attacks using Bitcoin Core honey pot nodes

DeFi Blockchain - enabling decentralized finance on Bitcoin

Starknet Ecosystem Dashboard

aelf JavaScript SDK