Repositories list

• micropython

  Public
  MicroPython - a lean and efficient Python implementation for microcontrollers and constrained systems

  C

  •

  Other

  •8.9k8.9k forks•88 stars•00 issues•44 pull requests•Updated Aug 26, 2026Aug 26, 2026

• firmware

  Public
  ❄️ Firmware and simulator for Coldcard Hardware Wallet

  securitycryptographybitcoin+ 2

  securitycryptographybitcoincryptocurrencybitcoin-wallet

  Python

  •

  Other

  •221221 forks•774774 stars•00 issues•99 pull requests•Updated Aug 25, 2026Aug 25, 2026

• ckcc-protocol

  Public
  Python library and command line tool for communicating with your Coldcard over USB

  bitcoinbitcoin-wallet

  bitcoinbitcoin-wallet

  Python

  •

  Other

  •2323 forks•6363 stars•22 issues•44 pull requests•Updated Aug 19, 2026Aug 19, 2026

• ckbunker

  Public
  CKBunker - A Bitcoin HSM solution to securely authorize transactions using an online Coldcard (over Tor)

  JavaScript

  •

  Other

  •2323 forks•5555 stars•1212 issues•22 pull requests•Updated Jul 7, 2026Jul 7, 2026

• psbt_faker

  Public
  Create test PSBT files which are valid, but garbage values

  walletcoldcardpsbt-faker

  walletcoldcardpsbt-faker

  Python

  •

  MIT License

  •55 forks•1919 stars•00 issues•00 pull requests•Updated Dec 3, 2025Dec 3, 2025

• push-tx

  Public
  NFC Push TX

  bitcoinbitcoin-transaction

  bitcoinbitcoin-transaction

  HTML

  •55 forks•77 stars•00 issues•00 pull requests•Updated Feb 19, 2025Feb 19, 2025

• recovery-images

  Public
  Build "recovery" disk images used to save bricked COLDCARD Mk4 and Q

  Makefile

  •

  Other

  •22 forks•22 stars•00 issues•00 pull requests•Updated Jun 26, 2024Jun 26, 2024

• wordlist-paper

  Public
  Creates the BIP39 wordlist on PDF for easy printing

  Python

  •66 forks•1414 stars•00 issues•00 pull requests•Updated Mar 20, 2023Mar 20, 2023

• psbt_recovery

  Public
  Recovery funds sent to addresses listed in public.txt

  Python

  •

  MIT License

  •44 forks•33 stars•00 issues•00 pull requests•Updated Sep 10, 2021Sep 10, 2021

• stm32lib

  Public
  STM32 Cube library - CMSIS and HAL for F4, F7 and L4 microcontrollers

  C++

  •7777 forks•11 star•00 issues•00 pull requests•Updated May 28, 2021May 28, 2021

• modcryptocurrency

  Public
  Micropython crypto code as independant subcomponent

  bitcoinbitcoin-wallet

  bitcoinbitcoin-wallet

  C

  •

  GNU General Public License v3.0

  •99 forks•1313 stars•00 issues•00 pull requests•Updated Mar 17, 2021Mar 17, 2021

• Bitcoin.org

  Public
  Bitcoin.org Website

  HTML

  •

  Other

  •2.1k2.1k forks•33 stars•00 issues•00 pull requests•Updated Mar 17, 2021Mar 17, 2021

• electrum

  Public
  Electrum; Bitcoin thin client

  Python

  •

  MIT License

  •3.5k3.5k forks•99 stars•00 issues•00 pull requests•Updated Jan 8, 2021Jan 8, 2021

• bipentropy

  Public
  BIP Entropy

  Python

  •

  MIT License

  •1313 forks•11 star•00 issues•00 pull requests•Updated Apr 20, 2020Apr 20, 2020

• coldcard-paper-wallet-templator

  Public
  Convert PDF template files into specialized PDF files the Coldcard can use to construct paper wallets

  Python

  •33 forks•77 stars•00 issues•00 pull requests•Updated Nov 25, 2019Nov 25, 2019

• HWI

  Public
  Bitcoin Hardware Wallet Interaction scripts

  Python

  •

  MIT License

  •239239 forks•55 stars•00 issues•00 pull requests•Updated Jun 17, 2019Jun 17, 2019