Showing 18 open source projects for "qr code system"

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  • 1
    Coin Wallet

    Coin Wallet

    Coin Wallet is a non-custodial crypto wallet for Bitcoin

    Coin Wallet is a non-custodial multicurrency wallet for multiple platforms. A secure, user-friendly cryptocurrency wallet focused on providing essential features without complicated setup.
    Downloads: 1 This Week
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  • 2
    AirGap Wallet

    AirGap Wallet

    The AirGap Wallet is installed on an everyday smartphone

    AirGap is a crypto wallet system that lets you secure cypto assets with one secret on an offline device. The AirGap Vault application is installed on a dedicated device that has no connection to any network, thus it is air gapped. The AirGap Wallet is installed on your everyday smartphone. Protect your crypto and store your private keys offline. It’s time to set up your safe place for your coins and get rewards. Based on a two-device approach, increasing security and usability with you in...
    Downloads: 2 This Week
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  • 3
    Neon Wallet

    Neon Wallet

    Self-custodial wallet for managing digital assets

    Neon Wallet is a self-custodial wallet for managing digital assets on desktop and mobile, supporting Neo, Ethereum, and EVM networks, with full user control. Available as a desktop wallet on Windows, Mac OS X, and Linux, the NEON wallet allows users to claim GAS on the NEO network.
    Downloads: 2 This Week
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  • 4
    Bisq

    Bisq

    A decentralized bitcoin exchange network

    Buy and sell bitcoin for fiat (or other cryptocurrencies) privately and securely using Bisq's peer-to-peer network and open-source desktop software. No registration is required. Get started in minutes. No need to wait for approval from a central authority. Trading takes place on a global P2P network of users running Bisq on their own machines. Bisq never holds your funds. Deposits held in 2-of-2 multi-sig wallets encourage safe, successful trades. Your data is stored locally on disk, and is...
    Downloads: 3 This Week
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  • 5
    OpenZeppelin Contracts

    OpenZeppelin Contracts

    OpenZeppelin Contracts is a library for secure smart contracts

    A library for secure smart contract development. Build on a solid foundation of community-vetted code. OpenZeppelin Contracts uses semantic versioning to communicate backward compatibility of its API and storage layout. To keep your system secure, you should always use the installed code as-is, and neither copy-paste it from online sources nor modify it yourself. The library is designed so that only the contracts and functions you use are deployed, so you don't need to worry about it needlessly increasing gas costs. ...
    Downloads: 0 This Week
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  • 6
    x402

    x402

    A payments protocol for the internet. Built on HTTP

    ...The system eliminates the need for accounts, sessions, or traditional payment rails by using cryptographic authorization and wallet-based transactions. Developers can integrate payment requirements into endpoints with minimal code using middleware and SDKs. Overall, x402 introduces a new economic layer to the web, enabling micropayments and pay-per-use services natively over HTTP.
    Downloads: 0 This Week
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  • 7
    Stellar Go

    Stellar Go

    Stellar's public monorepo of go code

    Creating equitable access to the global financial system. This repo is the home for all of the public Go code produced by the Stellar Development Foundation. This repo contains various tools and services that you can use and deploy, as well as the SDK you can use to develop applications that integrate with the Stellar network. Full-featured API server for Stellar network. This repository is officially supported on the last two releases of Go.
    Downloads: 0 This Week
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  • 8
    Libplanet

    Libplanet

    Blockchain in C#/.NET for on-chain, decentralized gaming

    Libplanet is a .NET library for creating multiplayer online game in decentralized fashion, which means the whole gameplay occurs on a peer-to-peer network among equal nodes rather than an authorized central server. Under the hood, it incorporates many features (e.g., digital signature, BFT consensus, data replication) of a blockchain.
    Downloads: 0 This Week
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  • 9
    Burner wallet

    Burner wallet

    Ephemeral web wallet for fast crypto cash

    Burner Wallet is a lightweight, ephemeral crypto wallet designed for speed and simplicity. It generates a fresh Ethereum keypair on page load — no seed phrase, no account creation. The compiled application is available in BurnerWallet.zip. You can store any amount of crypto, but treat it like cash: convenient for daily payments, less secure for large holdings. Use QR codes to send/receive funds, create payment links, swap between ETH/DAI/xDai, and even chat peer-to-peer with...
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    Downloads: 0 This Week
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  • 10
    Open Crypto Tracker

    Open Crypto Tracker

    Bitcoin Alts portfolio tracker, email / text / alexa / telegram alerts

    100% FREE / open source / PRIVATE cryptocurrency portfolio tracker. Email / text / alexa / telegram price alerts, price charts, mining calcs, leverage / gain / loss / balance stats, news feeds +more. Privately track Bitcoin / Ethereum / unlimited cryptocurrencies. Customize as many assets / markets / alerts / charts as you want. Over 50 Exchanges / 40 Trading Pairs Supported (exchanges / pairings list at bottom of README.txt): https://tinyurl.com/ct-readme Nearly Unlimited Assets...
    Downloads: 2 This Week
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  • 11
    JesseAi

    JesseAi

    Advanced AI-Powered Python Crypto Trading Bot 2026 - Free Backtesting

    Jesse Bot: Advanced AI-Powered Python Best Crypto Trading Bot & Framework (2026) Jesse Bot — free open-source Python crypto trading bot & robust framework for cryptocurrency markets. Build, backtest, AI-optimize, and execute precise automated strategies with zero look-ahead bias. Use JesseGPT — built-in AI assistant — to write, debug, and refine strategies effortlessly, even as a beginner. Secure live trading on Binance, Bybit & major exchanges, full risk management, leverage/futures...
    Downloads: 2 This Week
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  • 12
    Keeper Wallet

    Keeper Wallet

    Your entry point to the Waves blockchain and Waves-powered web service

    ...Users can create multiple wallets and switch between them easily. And if a user ever forgets the password to the account, it can be recovered from the seed phrase. Scan the QR code with a camera for authentication and your wallet is connected. This basic action opens up limitless opportunities on the Waves blockchain and potentially on any other chain supporting Keeper accounts.
    Downloads: 0 This Week
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  • 13
    Smart Contract Sanctuary

    Smart Contract Sanctuary

    A home for ethereum smart contracts

    A home for Ethereum smart contracts verified on Etherscan. This is the index repository for the smart contract sanctuary. Bookmark this repo. Chain-specific sub-repos and the index are updated twice a day. Expect a full, recursive check-out to take 2GB+ disk space. Existing repository but submodules never initialized - checkout submodules and update all chain-specific sub repositories. Contains smart contract sources for various networks, grouped by the first two chars of the contract...
    Downloads: 0 This Week
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  • 14
    Mastering the Lightning Network

    Mastering the Lightning Network

    Mastering the Lightning Network (LN)

    Mastering the Lightning Network is an O'Reilly Media book, by authors Andreas M. Antonopoulos (@aantonop), Olaoluwa Osuntokun (@roasbeef), Rene Pickhardt (@renepickhardt). It was published on Dec 21, 2021, in paperback and e-book, by O'Reilly Media. It is available everywhere that books are sold. This repository contains the manuscript of the book as published by O'Reilly Media, tagged as firstedition_firstprint. The book describes the Lightning Network (LN), a Peer-to-Peer protocol running...
    Downloads: 0 This Week
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  • 15
    Gitcoin Web

    Gitcoin Web

    Grow Open Source

    ...Now web3 technology like open-source protocols and decentralized blockchains give us the ability to take that co-creation to a new scale. The Gitcoin community uses this technology to fund and build digital public goods projects that serve everyone, and solve our most immediate problems. Open source code meets open economies. Build resilient projects, better coordination, and positive-sum outcomes. Growing networks with aligned incentives toward the wellbeing of each participant and the system as a whole. Through distributed funding and organizations, we build together toward our shared goals.
    Downloads: 0 This Week
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  • 16
    Plisio

    Plisio

    Cryptocurrency Payment Gateway - your payment processor

    ...Plisio operates according to the RESTful API standard and provides the following services: payment forwarding, requesting of the current weighted-average exchange rate, receiving a rate for a specified date and currency, and generating a QR-code. MERCHANT TOOLS Plisio is for merchants using a eCommerce solution such as WooCommerce, Virtuemart, Opencart, Magento. For merchants without one of these eCommerce solution, they can use a RESTful API to create their own solution. FEES Only 0.5% REGISTRATION No need to complete a KYC/Documentation. Not converting crypto into fiat money does not entail the obligation to provide your personal information to the Banks.
    Downloads: 0 This Week
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  • 17
    Ethlint

    Ethlint

    (Formerly Solium) Code quality & Security Linter for Solidity

    Ethlint (Formerly Solium) analyzes your Solidity code for style & security issues and fixes them. Standardize Smart Contract practices across your organization. Integrate with your build system. Deploy with confidence! Solium does not strictly follow Solidity Style Guide. The practices it enforces by default are best practices for the community at large. If you’re using vim with syntastic, and prefer to use a locally installed version of Solium (rather than a global version), you can install syntastic local solium to automatically load the local version in packages that have installed their own. ...
    Downloads: 0 This Week
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  • 18
    Petoron core (ADC)

    Petoron core (ADC)

    An open source blockchain written from scratch in Python.

    1,000,000,000 ADC issue. 0 commissions on transfers until the last coin is mined, then smart commissions are included, % of which goes directly to miners. A unique authorization system based on a rubik's cube that is not stored anywhere. If you lose your Cube, forget about your wallet forever. Its own code, and its own data storage system. No third-party dependencies. The network heals itself, deleted or changed chain or balances? The system will restore itself, without your participation. Continuous chain verification, you won't cheat it. ...
    Downloads: 0 This Week
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