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Awesome Cashu 🥜✨

A curated, collaborative list of awesome resources for getting ramped up with Cashu

What's Cashu?

Cashu is a free and open-source Chaumian Ecash system built for Bitcoin. Chaumian Ecash is an anonymous cryptographic electronic money or electronic cash system invented in 1982. Cashu is a modern ecash implementation on Bitcoin.

Visit cashu.space or docs.cashu.space to learn more.

The Cashu protocol

Cashu is an open Ecash protocol for anyone to implement. The specifications, called Cashu NUTs (Notation, Usage, and Terminology) describe how to implement the protocol. Multiple Cashu client libaries make it easy for developers to write their own wallets.

Mints

  • arxmint is a self-hosted Cashu mint / payment infrastructure for accepting Bitcoin payments with no middleman.
  • cashu-mint is a Java/Spring Boot implementation of the Cashu mint protocol.
  • cashu-mint (TypeScript) is a TypeScript Cashu mint implementing NUT-00 through NUT-07.
  • custom-unit-mint is cdk-mintd with a custom gRPC payment processor for manually settled custom units.
  • fibernuts is a Cashu ecash mint backed by Fiber Network payment channels.
  • MINTED is a Cashu mint accessible via Tor.
  • minervamnt is an Ark-backed Cashu mint in Rust (Chaumian ecash backed by VTXOs).
  • mintd is a mint implementation in Rust using CDK.
  • nisfeb/ecash is a Cashu mint implemented in pure Hoon as an Urbit Gall agent (NUTs 00–12).
  • nutmix is another mint written in Golang.
  • nutshell is the reference mint implementation in Python.
  • nutshell-xmr is a Cashu mint forked from Nutshell with a Monero (XMR) wallet-rpc backend.
  • unit-cashu-mint is a Cashu mint implementation in TypeScript.

Wallets

  • Agicash is a Cashu wallet that uses the Open Secret platform.
  • Archon Cashu Wallet is a DID-native ecash wallet.
  • bankify is a tool that turns any Cashu mint into a Lightning wallet with NWC support.
  • Bey Wallet is a modular, local-first ecash wallet for Bitcoin and Nostr.
  • botwallets is a simple Cashu wallet API for autonomous agents and bots.
  • Cashu Pixel is an offline Cashu ecash wallet for Raspberry Pi with a HyperPixel touchscreen.
  • Cashu Pixel (Rust) is a Rust/CDK/Slint rewrite of Cashu Pixel for Raspberry Pi.
  • Cashu Wallet is the official Cashu wallet for iOS and Android.
  • Cashu wallet (Java) is a Cashu wallet implementation in Java.
  • Cashu wallet (PHP) is a PHP implementation of a Cashu wallet.
  • Cashu Wallet CLI is a lightweight, robust CLI built with Node.js and SQLite for managing Cashu ecash tokens and interacting with Bitcoin Lightning mints.
  • cashu-agent is a Cashu ecash wallet for AI agents with privacy-preserving payments.
  • cashu-skill (eridanux) is a CLI-oriented Cashu skill for managing ecash tokens and Lightning mints.
  • Cashu.me is a web wallet built on Quasar and Vue.js. It is written in JavaScript and TypeScript.
  • cocoa-cash is a simple Cashu protocol wallet.
  • CocoCashu is a native iOS/macOS Cashu wallet app.
  • cocod is a Cashu wallet CLI and daemon built with Bun and TypeScript.
  • Coconut is a Cashu wallet written in Zig.
  • ElCaju is Cashu wallet built in Flutter.
  • endfiatcashu is the open-source UI for the endfiat Cashu web wallet.
  • eNuts 2 is a Cashu wallet being resurrected from the original eNuts wallet.
  • Harbor is an ecash wallet for better desktop privacy.
  • hexnuts is a lightweight Cashu ecash wallet for AI agents.
  • Ijma Wallet is a self-custody Bitcoin/Lightning wallet with Cashu support.
  • Kashir is an ecash wallet with nostr integration built using React Native and CDK.
  • Linky is a PWA for contacts, Nostr messaging, and Cashu payments.
  • Macadamia is a Cashu wallet for iOS written in Swift.
  • malibu is a native Cashu wallet for Linux, macOS, and Windows.
  • Minibits is a mobile Cashu wallet with a focus on performance and usability.
  • Nucula is a Cashu ecash wallet for ESP32-C6 with NFC tap-to-pay.
  • nutsd is a decentralized Cashu ecash wallet powered by Enbox DWN.
  • Nutshell is a CLI wallet available through PyPi. It comes with builtin Tor, supports multiple mints, and can send and receive tokens on nostr, and supports pay-to-script-hash (P2SH) tokens.
  • Nutstash is a Cashu web wallet with many features such as multimint support and support for sending and receiving tokens via nostr. Nutstash is written in TypeScript and uses the cashu-ts library.
  • Safebox is a Python implementation of a Cashu wallet component that lives in nostr and is intended for use by services that need a custodial wallet for Lightning payments. Still experimental.
  • Satoshi Pay is a Cashu wallet built to serve African markets and the global Bitcoin community. It uses the cashu-ts library and features a mobile-first PWA design. Site.
  • Sovran is a Cashu wallet for iOS.
  • waffledog cashu-wallet is a minimal Cashu wallet CLI for AI agents built with cashu-ts and Bun.
  • wallet-service is a Cashu e-wallet service with blind signatures, Lightning support, and anonymous payments.
  • wallet.endfiat.money is a Cashu web wallet.
  • Zappi is an ecash wallet powered by Cashu and Nostr.

Wallets- On-Chain/Lightning Wallets

  • Blitz is a Lightning wallet with Cashu ecash integration.
  • coinos is a Lightning wallet with Cashu ecash integration.
  • Voltz is an all-in-one on-chain+lightning+ecash wallet.
  • Zeus is a Lightning wallet with Cashu ecash integration.

Wallets - Nostr NIP-60/61 support

  • AFK is a community application with NIP-60 support.
  • Cashu Cache lets you create (or update) a NIP-60 compliant Cashu Wallet and advertizes the NIP-61 public key so you can receive NutZaps. It also makes a wallet backup.
  • Cashu Gather lets you receive NutZaps sent to your NIP-61 public key, creating a token per mint you can redeem with any wallet. Site
  • chachi is a nostr group chat client with NIP-60 and NIP-61 support.
  • +chorus is a simple space for communities to gather, share, and support each other. It is built on the decentralized Nostr protocol and has an integrated Cashu wallet.
  • Clams is a Personal Finance and Business Analytics application that has a Cashu NIP-60 connection.
  • Highlighter
  • Iris is a Nostr Android, iOS and web client that also has a standalone desktop app and a Cashu wallet.
  • Learn civics is a civics citizenship app that has NIP-60 and NIP-61 support.
  • lnw.cash, Site
  • nutlife.lol
  • Nutsack, Site
  • nuts.cash
  • Olas is an Instagram-like Nostr Client that supports NIP-60/61 (nutzaps/wallet), uses nutsack.
  • Shopstr has a built-in Cashu wallet for payments that has several features and uses the cashu-ts library.
  • sixty-nuts is a lightweight NIP-60 Cashu Wallet in Python.

Libraries

Cashu libraries allow developers to build wallets, mints, and other services that use Cashu.

C#

  • dotnut is a C# library implementing the Cashu protocol.

C++

  • nutcpp is a A C++17 library implementing the Cashu protocol.
  • nutpatch is a React Native NitroModule that patches cryptographic operations used by Cashu mobile apps.

Dart

  • cdk-dart are Dart language bindings for the Cashu Development Kit (cdk).

Go

  • cdk-go are Go language bindings for the Cashu Development Kit (cdk).

Java

  • Cashu-JDK is a minimal, stateless reimplementation of the Cashu protocol in Java.
  • cashu-lib is a Java library with core components for Cashu wallet and mint development.
  • payment-adapter is a Cashu gateway framework and payment adapter implementation in Java.

Python

  • btc-sec-toolkit is Semgrep rules for protocol-conformance bugs in Bitcoin, Lightning, and Cashu code.
  • Nutshell is a Python library for using Cashu wallets and mints inside other Python projects.

Rust

  • Cashu Development Kit(cdk) is a Rust library implementing the Cashu protocol.
  • cdk-cashu-auditor is a Cashu mint auditor built on CDK.
  • cdk-kotlin are Kotlin/Android language bindings for the Cashu Development Kit (cdk).
  • cdk-pop-verifier is a Proof-of-Payment verifier SDK for NUT-24 Cashu HTTP 402 with proof-of-power.
  • cdk-python are Python language bindings for the Cashu Development Kit (cdk).
  • cdk-swift are Swift language bindings for the Cashu Development Kit (cdk).

Swift

  • CashuKit is a Swift library implementing the Cashu protocol.
  • CashuSwift is a Swift library implementing the Cashu protocol.
  • CocoCashuSwift is a modular Swift SDK for building Cashu wallets (companion to CocoCashuApp).
  • CoreCashu is a Swift library of core Cashu protocol primitives.

Svelte

  • Cyphertap provides Nostr, Lightning & ecash in a single Svelte component.

TypeScript & JavaScript

  • blind-sig-js is a JavaScript library implementing Cashu's blind signature mechanism.
  • Cashu tools are advanced Cashu wallet tools based on cashu-ts in TypeScript.
  • cashu-crypto-ts is a TypeScript library that implements basic crypto operations for Cashu wallets and mints.
  • cashu-ts is a TypeScript library for building Cashu wallets.
  • cashu-wallet is a framework-agnostic Cashu wallet written in TypeScript.
  • Coco is a modular, TypeScript-first toolkit for building Cashu wallets and applications.
  • express-cashu is Express middleware for NUT-24 HTTP 402 payments with Cashu.
  • marketplace-cashu-ts is a Nostr-agnostic Cashu escrow policy implementation for marketplaces.

Documentation Web Sites

Note: These documentation sites are works in progress (WIP) and welcome feedback and suggestions for content.

  • cashu-ts is a cashu-ts doc site.
  • CDK is a CDK doc site. GitHub for input/feedback.
  • CDK is a CDK doc site.
  • docs.cashu.space is the source repository for the official Cashu protocol documentation. Site
  • Orchard docs is the official documentation site source for Orchard.

Tools

Testnut Mints

Mint Discovery and Audit

Restore

Token Decoders

Misc

  • bls-bench is a feasibility benchmark for Cashu-on-BLS (BLS12-381) on ESP32-C3 hardware.
  • dev-calls collects notes and materials from Cashu developer calls.
  • ndk-cashu-tests contains tests for NDK Cashu integrations.
  • Numbnoot is a simulator for the Blind Diffie-Hellman Key Exchange scheme in used in Cashu.
  • Nutshell configurer is a tool to set up the .env file for nutshell mints.
  • Orchard is a web application for Cashu mint management.
  • qr_maker is a simple QR code generator with Cashu data support.

Projects

LLM Purchase

  • 402-mcp is an MCP client that lets AI agents discover, pay for, and consume L402 and Cashu 402 APIs.
  • arbstr-node is a full-stack inference marketplace node deployment (arbstr) with Cashu-related flows.
  • arbstr-vault is a centralized treasury/"bank" service for AI agent Cashu balances.
  • ChatNut is a privacy-preserving Chat application for large language models (LLMs) that users pay-per-request with an integrated Cashu wallet without having to create accounts.
  • Cypherflow is an application that provides private AI conversations powered by Cashu payments.
  • ecash OpenAI API client is a privacy-focused payment gateway that enables anonymous micropayments using Cashu ecash for accessing Large Language Models via the OpenAI API.
  • leashd provides non-custodial spend governance for autonomous AI agents using Cashu.
  • ln-agent-poc-v2 is an MCP server and Claude Code skill pack for buying gift cards, eSIMs, and mobile top-ups with agent payments.
  • otrta-client is privacy-first AI payment system powered by e-cash technology. Site
  • peer2prompt is a peer-to-peer protocol for anonymous AI inference paid with Cashu.
  • plugin-nostr is a Nostr + Cashu ecash plugin with Agent-to-Agent Nostr (A2N) protocol support.
  • routstr is a marketplace to buy and sell LLM APIs using Cashu ecash tokens.
  • routstr-chat is a fully local chat interface implementing the Routstr protocol for Cashu-paid LLM access.
  • routstr-core is a Cashu ecash inference proxy (Ollama backend, admin UI, Lightning top-up) for paid AI inference.
  • satgate monetizes OpenAI-compatible endpoints with Lightning-paid AI inference in a Cashu-capable agent stack.

LN Address Support

  • npubcash-server is a Lightning-Address provider for nostr pubkeys based on Cashu-Address
  • SatsContact is a Lightning address provider that automatically generates @sats.contact Lightning addresses and real-time converts received amounts in Cashu tokens sent to the Telegram Chat.

Messengers

  • 0xChat 0xchat is a secure chat app built on the Nostr protocol with payments support using Cashu
  • KeyChat Keychat is a chat app built on Cashu, Nostr and the Signal Protocol.

P2PK Locked and Multi-Sig Tokens

  • Cashu NutLock lets you lock a Cashu token to one or more public keys (Nostr NPUB or P2PK) for a set time. Supports complex multi-signature (multi-sig) tokens. Site
  • Cashu Witness lets you unlock locked Cashu tokens by signing them with your private key (Nostr NSEC or P2PK). Supports multi-sig, and will show you whose signature(s) are required to unlock. Site

Redeem Tools

  • Cashu-redeem webtool allows you to redeem any Cashu token directly onto your Lightning wallet without having to receive it in a Cashu wallet GitHub.
  • Cashu-redeem (newer) is a webtool that enables you to redeem Cashu v4 tokens and decode emojis to redeem Cashu tokens directly into your Lightning wallet. It has support for bitcoin connect (NWC) and also stores change in localstorage.
  • Nostrly Cashu Redeem is an updated version of Redeem that uses latest cashu-ts, reads v4 tokens, emojis, and gives 'change'. Site

X-Cashu

  • 402-announce announces HTTP 402 services on Nostr for decentralized discovery.
  • cashu-l402 is a Cashu ecash ↔ L402 settlement bridge for atomic ecash-to-macaroon exchange.
  • cashu-mpp is an experimental NUT-24 HTTP 402 implementation with server-side Cashu validation.
  • clawtar is an agent-first demo for Cashu 402 payments.
  • magicsphere is a Magic 8 Ball oracle powered by Lightning payments via Cashu and L402.
  • nutpay is a Chrome extension for automatic Cashu micropayments via X-Cashu proxies.
  • Proxnut forwards requests only if they have a valid cashu token attached to the X-Cashu header.
  • teneo-publishing is an AI agent content publishing API with pay-per-use via Lightning L402 or Cashu.
  • toll-booth turns any API into a Lightning or Cashu toll booth with one-line middleware, including Cashu settlement paths.
  • X-Cashu is a work-in-progress project that aims to create a 402 Payment Required scheme to monetize REST API access by using ecash in HTTP headers.
  • x402-cashu connects x402-style HTTP payments with Cashu ecash.

Marketplaces

  • 402.markets is an API marketplace powered by Lightning Network and Cashu tokens. Site
  • Athenut is a tool to search smarter (Kagi-powered). Pay in sats. Site, Github-Mint
  • Europa is a marketplace for VPN access where users can pay with Cashu ecash.
  • europa-node is the reference operator daemon for the Europa VPN marketplace (NIP-99 listings and Cashu payments).
  • getbased is an AI app for understanding lab results with an integrated Cashu wallet.
  • Mynymbox is a privacy-focused hosting provider and domain registrar that lets you pay with Cashu.
  • Stashu is a self-hosted marketplace for selling encrypted files for sats via Lightning or Cashu, no accounts needed.
  • Switchboard is a Nostr and Cashu powered freelance marketplace.

Various nutcases

  • 402forDummies is a practical entry point to the NUT-24 flow.
  • agentecash is a tool that uses private, instant ecash payments between autonomous AI agents.
  • Agicash Giftcards are Bitcoin giftcards powered by Cashu.
  • Almandine uses Athenut and is basic wrapper with a built-in CDK wallet.
  • BitChat Cashu games is a BitChat casino bot (roulette, hangman, blackjack) using Cashu ecash.
  • Bitcoin Skills ia a workflow for building Bitcoin, Lightning, and Cashu wallets through prompts and images, with a Claude Skills library.
  • BitMeshV2.5 is a censorship-resistant P2P messaging app with Bitcoin proof identity and Cashu wallet.
  • bitpoints.me is a Cashu Ecash Wallet with Bluetooth mesh networking and Nostr integration.
  • Blackbox Node is an offline-first command post combining local AI, radio messaging, mapping, telemetry, and Cashu payments in a single self-hosted web UI.
  • blossom-server (Spilman Cashu) is a Blossom server that requires Cashu Spilman channel payments.
  • BTCNutServer is a new experimental plugin to bring ecash payments to BTCPay Server.
  • btcpayserver-plugin-cashu is a BTCPay Server plugin for accepting Cashu ecash payments.
  • bullishNuts is an ecash wallet in early beta phase.
  • Cashu Bonds is a simple proof of concept of identity bonds using Cashu.
  • Cashu Cards turns Cashu ecash into beautiful cards.
  • Cashu Casino is a privacy-focused online casino powered by Cashu ecash.
  • Cashu for Community Sovereignty provides private and censorship resistant payment systems for communities under authoritarian regimes. Site
  • Cashu for WooCommerce adds a secure Cashu payment gateway to your WooCommerce store.
  • Cashu LoRa Bridge is a gateway server that enables offline Bitcoin transactions via LoRa radio networks.
  • Cashu MLS Chat is a a web-based application combining MDK (Marmot Development Kit) for encrypted group messaging with Cashu (CDK) for ecash wallet functionality.
  • Cashu Monopoly is classic Monopoly, but the money is real Bitcoin. Buy in with Lightning, pot held in a Cashu wallet, winner takes the sats.
  • Cashu Pay Server accepts Bitcoin Lightning payments without running a full BTCPay Server instance. Site
  • cashu Spilman channels is Spillman-style payment channels built with Cashu.
  • cashu-admin-ui is an admin dashboard for Cashu Nutshell mints.
  • cashu-arkade-lightning-procesor is an Arkade Lightning payment processor for Cashu mints written in C#.
  • cashu-batch-mint pays one Lightning invoice to a Cashu mint and produces a stack of outputs/tokens.
  • Cashu-brrr is a Cashu ecash printer. Site
  • cashu-client (NFC) is a Cashu NFC card client with crypto primitives and Nutshell mint HTTP integration.
  • cashu-escrow-kit is an ecash escrow provider and client concept.
  • cashu-fault-lab is a fault-injection and interoperability lab for retry-safe Cashu payments.
  • cashu-gateway is a Cashu payment gateway experiment.
  • cashu-javacard is a JavaCard applet implementing the Cashu ecash protocol for offline NFC payments.
  • cashu-kym is used to discover and score Cashu mints.
  • cashu-operator is a Kubernetes operator for declarative Cashu application deployments.
  • cashu-pos is a self-hostable POS app built with Expo for accepting Cashu payments via NFC tap-to-pay and Lightning invoices.
  • cashu-service provides reusable Cashu primitives for paid connectivity services.
  • cashu-startos is a StartOS wrapper for running a Cashu mint server.
  • cashu-voucher implements gift-card style Cashu vouchers that are spent as ecash.
  • cashu-vpn sells short-lived WireGuard VPN access for Cashu ecash in a non-custodial seller flow.
  • cashu-vpn-client is a desktop client for Cashu-paid VPN access (companion stack: cashu-vpn-wireguard, vpn-identity-cashu).
  • cashu-vpn-wireguard is a WireGuard server component for Cashu-paid VPN that takes pubkeys from an auth manager.
  • cashu.me.extension is a Cashu.me wrapper that allows you to use your Cashu.me ecash and manage functionality related to it including sending and receiving. Chrome extension and Firefox extension.
  • cashu4community web is the web frontend for Cashu for Community Sovereignty.
  • cashu4cs-deploy is deployment tooling for Cashu for Community Sovereignty.
  • Cashu4Vita brings Cashu ecash to the PlayStation Vita.
  • cashucacher hides Cashu tokens for steganographic or puzzle-style sharing.
  • Cashucards are greeting cards that give Bitcoin using the Cashu protocol.
  • CashuProjects is a collection of TypeScript projects.
  • catofa is a web UI and orchestration layer for the Lakeside Cashu faucet.
  • CDK Spark Payment Processor is a gRPC-based Lightning Network payment processor that implements the CDK payment processor protocol using the Breez SDK Spark.
  • Charon is a stateless Bash CLI for buying a MyNymBox VPS with Cashu or Lightning.
  • chessu.cash is a game where you can solve chess puzzles and earn Cashu ecash.
  • classu is an educational platform fully dedicated to Cashu. Site
  • CLN mint plugin is a work-in-progress CLN plugin for running a mint on your own node.
  • darknode is an off-grid AI node combining a local LLM, LoRa mesh radio, and Bitcoin/Cashu payments.
  • deez-cashus is a production-ready demonstration of HTTP 402 (Payment Required) using Cashu for privacy-preserving Bitcoin-backed micropayments.
  • EchoCash is a P2P communication and payment platform using WebRTC and WebSockets for decentralized value transfer via Fedimint and Cashu.
  • Frosty Cashu Wallet is a demo Cashu wallet with FROST threshold multisignature support for collaborative ecash control.
  • Granola is a decentralized exchange layer on top of Cashu that coordinates atomic swaps over Nostr.
  • Hashpool is an accountless mining pool that uses ecash to represent mining shares.
  • hashu is a hashrate proxy that mints hashrate vouchers via Cashu.
  • Hide a message in an emoji is a Site that allows you to hide ecash in an emoji.
  • kirk is a trustless gaming protocol combining Cashu ecash tokens with Nostr.
  • lakeside is a small utility for generating Cashu tokens.
  • Layer3 Press is an unstoppable publishing service that allows people to easily receive Bitcoin, Lightning and Cashu subscription payments with a built-in Coinos wallet.
  • lnuts is a full Nostr-ready LNURL-pay server that bridges Lightning payments to Cashu tokens.
  • mcp-money is an MCP (Model Context Protocol) money implementation for Nostr using NDK (Nostr Development Kit) with Cashu ecash functionality.
  • Meme amigo enables you to hide ecash in a meme.
  • Mint 98 is a tool for generating realistic traffic against Cashu mints.
  • MONAD is a Monetized Onion Network Access Daemon that sells onion-routed access for Cashu.
  • Morning Glory is a paid blossom server that only stores blobs for a day.
  • ngx_l402 is an L402 authentication module/plugin for Nginx that integrates seamlessly into your web server.
  • night-bazaar is a pop-gated 3D browser open-world game on the Cashu stack with pay-per-action ecash.
  • nostr.blue ia a full-featured Nostr social client with a built-in NIP-60 Cashu wallet, compiled to WebAssembly using CDK.
  • nostrpay is a child-friendly learning app with offline-first Cashu payments built into an educational environment.
  • Numo is an Android Point-of-Sale application that enables merchants to receive Cashu ecash payments via tap-2-pay.
  • Numo (ZapOut reference) is a Cashu and Lightning point-of-sale app used as a ZapOut reference implementation.
  • Nutband aims to use Cashu payments over long range radio and other mesh networks using Reticulum and LXMF.
  • NUTbits is a NWC wallet service that translates between Cashu mint (NUTs) and Nostr Wallet Connect (NIP-47).
  • nutoff-wallet is a command-line interface and MCP server interface implementing a Cashu wallet.
  • Nuts are Pure Signal is a bitcoin for Signal hackathon project winner.
  • Nutshell in Azure TEE is a Cashu mint running in confidential containers (Azure TEE).
  • nutvault is a more secure signer component for Cashu mints.
  • Obfusats is a hackathon project that takes a stack of sats, splits and routes through a couple of Cashu mints before merging again.
  • OnChainDiscGolf is a disc golf scorecard app with integrated Bitcoin payments via Cashu ecash.
  • Openpleb is a platform for matching users that want to pay a banking QR with bitcoin, and earners that want to earn bitcoin for paying the users offers.
  • Orchard is a Bitcoin super application that has Cashu mint monitoring.
  • payment-methods is Lightning and Cashu payment method specifications.
  • Paywally is a Lightning paywall powered by Cashu.
  • perform is a commitment-device PWA where you stake Bitcoin via Cashu on your habits.
  • Portal Technologies is a universal app for identity & payments.
  • Purrwallet is a cross-platform Cashu ecash wallet built with Rust and Flutter, featuring a terminal-inspired UI for privacy-focused Bitcoiners.
  • Receipt.cash is a bill splitter to snap a picture of a fiat bill and easily split costs auto-converted to Bitcoin. It's based on Cashu payment requests. Site
  • rythm is a non-custodial email paywall using Cashu.
  • S-two Cairo Demo is bringing zero-knowledge proofs to Cashu. Github repos: stwo-cairo and stwo-cairo-ts
  • satflux is a multi-tenant control panel for BTCPay Server stores and invoices with Cashu-related flows.
  • Satocash-Applet is an ecash wallet implementation in javacard.
  • shuestand is a Bitcoin ↔ Cashu atomic swap tool.
  • sig4sats is a a simple script demonstrating how to atomically exchange Cashu payments for Nostr event signatures using Schnorr adaptor signatures.
  • Skate Spots is skate spot map built on Nostr with an integrated Cashu wallet.
  • Spacenut is the sickest Cashu-enabled game you've ever played. Site
  • Spillman Cashu channel demo is a demo of high-frequency micropayments with Cashu Spillman channels.
  • Taskify is a clean, powerful to-do app where tasks can carry Cashu bounties.
  • tg-mint-orchestrator is an Ansible playbook for deploying per-operator Cashu (CDK) mints.
  • The Nutty Pill is an educational application that gamifies Bitcoin learning with a Cashu.me wallet.
  • tip.lol lets you share Bitcoin Cashu ecash with a simple link.
  • Tollgate turns any WiFi router into a decentralized ISP using bitcoin and ecash.
  • tollgate-auth sells pay-per-minute SSH access charged with Cashu tokens.
  • vpn-identity-cashu manages Cashu VPN payments and passes valid pubkeys to the VPN stack.
  • Wally allows your device to discover and (auto)connect to TollGates around you. Implements Cashu Wallet Connect (CWC), an extension of NIP-47 (Nostr Wallet Connect) that enables applications to interact with Cashu ecash wallets over Nostr.
  • wavlake-client is a reference client for Wavlake streaming credits using Cashu ecash.
  • Wrapnuts is a CLI developed for embedding Cashu ecash into files with the help of steganography.
  • ZapOut MVP is an MVP Lightning + Cashu Bitcoin payment app (ZapOut).
  • μNuts is a Cashu hardware wallet for the STM32F469I-discovery board.

Currently Unmaintained Projects

Mints

  • alchemint is a Cashu mint written in Elixir.
  • be-your-own-mint is documentation of tooling and steps to run your own Cashu mint (unmaintained).
  • cashu-lsp is a Cashu LSP experiment (unmaintained).
  • cashu-mint-page is a Cashu mint homepage project (unmaintained).
  • cashu-rs-mint is a Cashu mint implementation using CDK (archived).
  • cashu-signer is a remote signer for Cashu mints (unmaintained).
  • cashu-ts-mint is a Cashu mint written in TypeScript.
  • Cashubrew is a Cashu mint written in Elixir.
  • cashubrew-website is website for the Cashubrew mint (unmaintained).
  • Chamberlain is a mint implementation with an Integrated LDK Node using CDK.
  • gonuts is a Cashu wallet and mint written in Go.
  • ldk-node-cashu-mint is a Cashu mint backed by LDK Node.
  • lnbits-cashu is a Cashu mint extension for LNbits based on Nutshell (archived).
  • lnbits/cashu is an LNbits Cashu integration (archived).
  • mint is a Cashu mint project in TypeScript.
  • mint-anywhere is deploy a Cashu mint with nixos-anywhere (unmaintained).
  • Moksha is a Cashu wallet and mint written in Rust.
  • mynode-nutshell is Nutshell packaged as a MyNodeBTC community/dynamic app (unmaintained).
  • nutshell-docker is a Nutshell Cashu Docker setup with PostgreSQL (unmaintained).
  • nutshell-lnurl is LNURL to Cashu to Nostr middleware on Nutshell (unmaintained).
  • purrmint is a mobile Cashu mint built with Rust and Kotlin.
  • swift-cashu-mint is a Cashu mint implementation in Swift.
  • tsnut is a highly extensible Cashu mint written in TypeScript.
  • zashu is a Zcash-backed Cashu mint written in Rust.

Wallets

Libraries

  • acorn is a Cashu JavaScript frontend widget for managing anonymous payments (unmaintained).
  • acorn-core is a TypeScript library for managing Cashu ecash payments (unmaintained).
  • bip-utils (398ja) is BIP32 helpers used with the 398ja Cashu Java stack (unmaintained).
  • cashex is Cashu BDHKE in Elixir (Livebook) (unmaintained).
  • cashu-address-sdk is a TypeScript SDK for Cashu-Address (unmaintained).
  • cashu-bdhke-kmp is a Kotlin library that implements the basic cryptographic blinded signature scheme.
  • cashu-client is a Cashu client library in Kotlin.
  • cashu-crab-bindings are language bindings for cashu-crab (unmaintained).
  • cashu-crypto-js is a JavaScript/TypeScript proof-of-concept for Cashu BDHKE crypto (unmaintained).
  • Cashu-dart is another Library that allows developers to integrate Cashu easily into apps
  • cashu-feni is a Golang library for Cashu wallets and mints.
  • cashu-java is an in-progress Java implementation of the Cashu protocol (unmaintained).
  • cashu-js is a JavaScript library for building Cashu wallets (unmaintained).
  • cashu-js (jsahagun91) is vanilla JavaScript helpers to interact with Cashu mints in the browser (unmaintained).
  • cashu-kvac explores Keyed-Verification Anonymous Credentials (KVAC) in a Cashu context (unmaintained).
  • cashu-react is a React library built on top of cashu-ts (unmaintained).
  • cashu-rs is an early Rust library for Cashu (unmaintained).
  • cashu-rs (Guilospanck) is another Rust Cashu library experiment (unmaintained).
  • cashu-ts-multisig experiments with multisig flows on cashu-ts (unmaintained).
  • cashu-zk-engine is a Cashu protocol ZK engine implementing BDHKE in Cairo (unmaintained).
  • cashu_dart is a Dart library for Cashu wallets (archived).
  • cashu_dart (Syoolah fork) is a fork of cashu_dart (unmaintained).
  • cashubuddy packages cashu-ts as a webpack buildup for pure JavaScript use (unmaintained).
  • cashulib is an Elixir implementation of the Cashu protocol (unmaintained).
  • cashupp is a C++ Cashu protocol implementation based on the NUTs (unmaintained).
  • cdk (arkanoider) is a Cashu Development Kit experiment (unmaintained).
  • cdk-flutter is a CDK Flutter Rust bridge library (archived).
  • headless-cashu is a browser Cashu wallet library without a GUI (unmaintained).
  • nostr-mint-connect is a cashu-ts plugin for connecting to mints via Nostr (unmaintained).
  • nutBAC is blind authentication components related to Cashu NUTs (unmaintained).

Misc

  • aesir is a CLI for setting up local Bitcoin/Lightning/Cashu regtest environments (unmaintained).
  • atomic-mint-swap is a broker for atomic swaps of ecash between different mints (unmaintained).
  • axepool is a proxy pool experiment aimed at OCEAN Cashu payouts (unmaintained).
  • bolsonitro-faucet is a Cashu-related faucet experiment (unmaintained).
  • cashtanha is a hackathon Cashu simplicity prototype (unmaintained).
  • CASHU Auth WordPress Plugin is a WordPress plugin for anonymous site access using Cashu (unmaintained).
  • Cashu claim Telegram bot is a Telegram bot to block Cashu token spam in groups (unmaintained).
  • Cashu faucet allows you to deposit and withdraw Cashu tokens from a web interface. Site
  • Cashu wallets index (CashuMints.space) is an index of Cashu wallets (unmaintained).
  • cashu-address natively sends Cashu payments to a public key based on BIP-353-style addressing (unmaintained).
  • cashu-address-cli is a CLI for interacting with Cashu-Address (unmaintained).
  • Cashu-Alice is Cashu Alice demo (unmaintained).
  • cashu-auditor (3xtr3m3hodl) is a Cashu mint auditor that loops payments for testing (unmaintained).
  • Cashu-Bob is Cashu Bob demo (unmaintained).
  • cashu-decoder is a Cashu token decoder (unmaintained).
  • cashu-faucet-worker is a Cashu faucet worker (archived).
  • cashu-gateway-ts is a TypeScript Cashu payment gateway experiment (unmaintained).
  • cashu-lnurl bridges LNURL and Cashu (unmaintained).
  • cashu-marketplace is a no-JavaScript escrow marketplace using Cashu pay-per-request (unmaintained).
  • cashu-nostr-updater updates Nostr-related Cashu state (unmaintained).
  • cashu-notify is Cashu notification experiments (unmaintained).
  • cashu-p2pk is Cashu P2PK experiments (unmaintained).
  • cashu-paper-scissors is paper-scissors game with Cashu (unmaintained).
  • cashu-payment-backend is a Cashu payment backend (unmaintained).
  • cashu-playground is a Cashu playground/demo (unmaintained).
  • cashu-pm-workflow is project-management workflow notes for Cashu protocol development (unmaintained).
  • cashu-pol is a Cashu proof-of-liabilities experiment (unmaintained).
  • cashu-proxy (gudnuf) is a Cashu HTTP proxy experiment (unmaintained).
  • cashu-proxy (thesimplekid) is another Cashu proxy implementation in Rust (unmaintained).
  • cashu-proxy-tester tests Cashu proxy flows (unmaintained).
  • cashu-redeem-api is an API to redeem Cashu tokens to Lightning (unmaintained).
  • cashu-split is Cashu token split utilities (unmaintained).
  • cashu-tool is a Rust Cashu utility tool (archived).
  • cashu-ts-docs is documentation work for cashu-ts (unmaintained).
  • cashu-webcomponent is a web component frontend and Node backend for embedding Cashu payments (unmaintained).
  • cashu402 experiments with Cashu HTTP 402 payments (unmaintained).
  • cashu_cloak is steganography for the Cashu protocol (unmaintained).
  • CashuArcade is an arcade-style project using Cashu (unmaintained).
  • cashucordAuction is a Cashu auction experiment (unmaintained).
  • CashuMints Telegram bot is a Telegram bot for Cashumints.space (unmaintained).
  • Cashumints-site is Cashumints.space 2.0 Nostr client (unmaintained).
  • cashurpc is a Cashu RPC experiment (unmaintained).
  • CHATTY is a local/server AI expert on Bitcoin, Lightning, and Cashu (unmaintained).
  • chessnut is chess over Nostr with Cashu tokens (unmaintained).
  • cornucopia stores and synchronizes Cashu proofs (unmaintained).
  • crown-anchor is a provably fair Crown and Anchor game with Nostr and Cashu integration (unmaintained).
  • dcw is an elnosh Cashu-related project (unmaintained).
  • kickstart-cln-plugin is a CLN plugin related to Lightning liquidity and Cashu flows (archived).
  • ldk-cashu is LDK and Cashu integration work (unmaintained).
  • LNCA is a Lightning app combining L402 AI payments with Cashu-related flows (unmaintained).
  • loudr sponsors publication of Nostr events via atomic swap of Cashu payments (unmaintained).
  • mattress is a Nostr relay for Cashu tokens of whitelisted pubkeys (unmaintained).
  • n8n-nodes-cashu provides n8n nodes for Cashu (unmaintained).
  • nostr-P2PK is NUT-11 P2PK Cashu micropayments over a client-relay note flow (unmaintained).
  • nostr-pow-provider accepts ecash to find proof-of-work for Nostr events (unmaintained).
  • npubcash-website is the website for npubcash (unmaintained).
  • nut-bridge bridges NIP-57 zaps and NutZaps (unmaintained).
  • nut-november is a Cashubtc nut-november project (unmaintained).
  • nut-smasher is a project for stress-testing and trying to break Cashu mints (unmaintained).
  • nutcracker is a CLI for unlocking Cashu tokens locked to your npub (unmaintained).
  • nutgrab is a browser extension for redeeming Cashu tokens on the web (unmaintained).
  • nuthog is a Chromium extension that sniffs out Cashu nuts hidden in emojis and pages (unmaintained).
  • nutstash-homepage is the homepage for Nutstash, a Cashu wallet with Nostr integration (unmaintained).
  • P2PK-locked Cashu Token is P2PK-locked Cashu token demos (unmaintained).
  • strfry ecash DVM demo is proof of concept using Cashu ecash for rate-limiting on strfry/DVM (unmaintained).
  • swissbtc-cashu is a SwissBTC Cashu integration experiment (unmaintained).
  • wallet-relay is a high-performance relay for enabling NWC and Cashu wallets (unmaintained).
  • webvouchers experiments with web vouchers in a Cashu/ecash context (unmaintained).
  • x-cashu-leptos is an X-Cashu demo UI in Leptos (unmaintained).
  • x-cashu-search is an X-Cashu search/pay experiment (unmaintained).
  • ZapTok is a Nostr short-video PWA client with Cashu-related payments (unmaintained).