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Showing 32 open source projects for "qr-code-generator"
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Build Agents and Models on One PlatformGemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
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Stop vibe-debugging.AppSignal's MCP server hands Claude, Cursor, or Zed your real errors, traces, and the deploy that shipped them. AI writes the fix; you review the diff.
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Bitcoin
Bitcoin Core integration/staging tree
Bitcoin Core connects to the Bitcoin peer-to-peer network to download and fully validate blocks and transactions. It also includes a wallet and graphical user interface, which can be optionally built. Bitcoin Core requires a one-time download of about 400GB of data plus a further 5-10GB per month. By default, you will need to store all of that data, but if you enable pruning, you can store as little as 6GB total without sacrificing any security. For more information about setting up Bitcoin... -
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Hardhat
Hardhat is a development environment to compile, deploy, test
...Easily deploy your contracts, run tests and debug Solidity code without dealing with live environments. Hardhat Network is a local Ethereum network designed for development. Hardhat is the best choice for Solidity debugging. You get Solidity stack traces, console.log and explicit error messages when transactions fail. -
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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. -
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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. -
MongoDB Atlas runs apps anywhereMongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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Bisq
A decentralized bitcoin exchange network
...Deposits held in 2-of-2 multi-sig wallets encourage safe, successful trades. Your data is stored locally on disk, and is never sent to a central server. Every Bisq node is a Tor hidden service by default. Code is open-source, and project strategy is discussed openly on Keybase and GitHub. We've made all this sophistication simple, make your first trade in under 10 minutes! Decentralized governance for a decentralized exchange, built on top of Bitcoin. -
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Freqtrade
Free, open source crypto trading bot
...Always start by running a trading bot in Dry-run and do not engage money before you understand how it works and what profit/loss you should expect. We strongly recommend you have basic coding skills and Python knowledge. Do not hesitate to read the source code and understand the mechanisms of this bot, algorithms, and techniques implemented in it. Write your strategy in python, using pandas. Example strategies to inspire you are available in the strategy repository. Download historical data of the exchange and the markets you may want to trade with. Find the best parameters for your strategy using hyper optimization which employs machining learning methods. -
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Uniswap Labs Interface
An open source interface for the Uniswap protocol
...Build Defi apps and tools on the largest crypto project on Ethereum. Get started with quick start guides, protocol documentation, a Javascript SDK, and fully open source code. Get paid to build the future of finance. Uniswap Governance offers grant funding for people building apps, tools, and activities on the Uniswap Protocol. To access the Uniswap Interface, use an IPFS gateway link from the latest release. You can block an entire list of tokens by passing in a tokenlist. The Uniswap Interface supports swapping, adding liquidity, removing liquidity and migrating liquidity for Uniswap protocol V2. -
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btcd
An alternative full node bitcoin implementation written in Go (golang)
...It includes a full block validation testing framework which contains all of the 'official' block acceptance tests (and some additional ones) that is run on every pull request to help ensure it properly follows consensus. Also, it passes all of the JSON test data in the Bitcoin Core code. It also properly relays newly mined blocks, maintains a transaction pool, and relays individual transactions that have not yet made it into a block. It ensures all individual transactions admitted to the pool follow the rules required by the block chain and also includes more strict checks which filter transactions based on miner requirements ("standard" transactions). -
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Web3j
Lightweight Java and Android library for integration with Ethereum
Web3j is a lightweight, highly modular, reactive, type safe Java and Android library for working with Smart Contracts and integrating with Ethereum blockchains. This allows you to work with Ethereum blockchains, without the additional overhead of having to write your own integration code for the platform. Web3j integrates seamlessly with the Epirus Blockchain Explorer. Web3j provides full type-safe access to your blockchain applications. Plugins for leading build tools to simplify the developer experience. Create projects to work with new or import existing decentralized apps in a single command with the Web3j CLI. ... -
$300 Free Credits for Your Google Cloud ProjectsLaunch your next project with $300 in free Google Cloud credits—no strings attached. Test, build, and deploy without risk. Use your credits across the entire Google Cloud platform to find what works best for your needs. After your credits are used, continue with always-free tier services. Only pay when you're ready to scale. Sign up in minutes and start exploring.
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ta4j
A Java library for technical analysis
...It provides the basic components for the creation, evaluation, and execution of trading strategies. Ta4j is available on Maven Central. You can also download example code from the maven central repository. The wiki is the best place to start learning about ta4j. For more detailed questions, please use the issues tracker. We can calculate indicators over this bar series, in order to forecast the direction of prices through the study of past market data. Then we have to build our trading strategy. It is made of two trading rules, one for entry, the other for exit. ... -
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OctoBot
Cryptocurrency trading bot for TA, arbitrage and social trading
OctoBot is a trading robot that is designed to be easy to use and infinitely customizable. OctoBot is built for people who don't have much time or do not easily trust crypto-world projects. Many trading automation tools exist but most of them are complicated to use, expensive, do not behave as intended, or are meant to be used by professional traders. Moreover, when a favorable trend is spotted, it can be difficult to maximize profit from it: trading takes a lot of time, and when it's done... -
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Rust-Lightning
Bitcoin Lightning library written in Rust
...LDK/Rust-Lightning is a generic library which allows you to build a lightning node without needing to worry about getting all of the lightning state machine, routing, and on-chain punishment code (and other chain interactions) exactly correct. Note that Rust-Lightning isn't, in itself, a node. -
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Litecoin Core integration
Litecoin source tree
...Litecoin is an open-source software project released under the MIT/X11 license which gives you the power to run, modify, and copy the software and to distribute, at your option, modified copies of the software. The software is released in a transparent process that allows for independent verification of binaries and their corresponding source code. -
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Cryptocurrency Exchange Feed Handler
Cryptocurrency Exchange Websocket data feed handler
Handles multiple cryptocurrency exchange data feeds and returns normalized and standardized results to client registered callbacks for events like trades, book updates, ticker updates, etc. Utilizes WebSockets when possible, but can also poll data via REST endpoints if a WebSocket is not provided. Create a FeedHandler object and add subscriptions. For the various data channels that an exchange supports, you can supply callbacks for data events, or use provided backends to handle the data for... -
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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... -
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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... -
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Truffle
A tool for developing smart contracts. Crafted with the finest cacaos.
...Truffle will manage your entire workflow. Get a deeper understanding of transactions with the Truffle debugger. Step in/out, set breakpoints, and analyze variables through the CLI and the native VS Code debugger. Debug mainnet transactions by stepping through verified contract source code. Truffle will give you the best view into what's happening. Bring up a local blockchain with pre-funded accounts for fast testing with Truffle’s Ganache. Fork mainnet with zero-config, impersonate accounts, auto-mine blocks, and use Ganache programmatically with Node.js. ... -
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Robin-Stocks API Library
This is a library to use with Robinhood Financial App
...In addition, it can be used to get real-time ticker information, assess the performance of your portfolio, and can also get tax documents, total dividends paid, and more. The code is simple to use, easy to understand, and easy to modify. With this library, you can view information on stocks, options, and cryptocurrencies in real-time, create your own robo-investor or trading algorithm, and improve your programming skills. The supported APIs are Robinhood, Gemini, and TD Ameritrade. If you are contributing to this project and would like to use automatic testing for your changes, you will need to install pytest and pytest-dotenv. ... -
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Blankly
Easily build, backtest and deploy your algo in just a few lines
...We make it super easy for you so you can focus on building better trading algos. Your models can run on any platform, and on any supported exchange. We make that as easy as just changing one line of code. -
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Mastering the Lightning Network
Mastering the Lightning Network (LN)
...The book is suitable for technical readers with an understanding of the fundamentals of Bitcoin and other open blockchains. Mastering the Lightning Network is released under the Creative Commons CC-BY-NC-ND license, which allows sharing the source code for personal use only. You may read this book for free. -
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Bcoin
Javascript bitcoin library for node.js and browsers
...It is easier to use, faster to learn, and more well-documented than competing implementations. Engineered from the ground up to create scalable, flexible, and efficient production-ready systems with unparalleled code readability. Bcoin is consensus-conforming and adheres to the strict security standards of the original implementation maintained by Bitcoin Core. Bcoin can be integrated into almost any desktop or browser application to enable native payments, on both Bitcoin and Bitcoin Cash networks. Bcoin is the first full node implementation built specifically for production systems at scale. ... -
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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. -
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Aleth
Aleth – Ethereum C++ client, tools and libraries
The collection of C++ libraries and tools for Ethereum, formerly known as cpp-ethereum project. This includes the full Ethereum client aleth. Git and GitHub are used to maintain the source code. The --recursive option is important. It orders git to clone additional submodules to build the project. If you missed --recursive option, you are able to correct your mistake with command git submodule update --init. CMake is used to control the build configuration of the project. Latest version of CMake is required (at the time of writing 3.9.3 is the minimum). ... -
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Classpy
GUI tool for investigating Java class files
Classpy is a GUI tool for investigating Java class file, Lua binary chunk, Wasm binary code, and other binary file formats. Understands class files described by JVMS9. Supports Lua 5.3 binary chunk format. Supports Wasm binary format. Supports Bitcoin raw block and transaction format. Displays parsed binary file as tree and hex text. The corresponding hex text is highlighted when you select a tree node. This tool is mainly inspired by javap and JavaClassViewer. -
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Cryptocurrency Donations Slider
All public Blockchain Assets in one easy to use interactive Html5 app
...Use H5P Plugin for Wordpress, Drupal or Moodle to import our templates and edit them for your own Cryptocurrency Donations Slider. https://sourceforge.net/projects/cryptocurrencydonation/files/Plugins/ You can change important things like your own wallet addresses and your qr-codes or create your own logo and your own template. All free images are in File section: https://sourceforge.net/projects/cryptocurrencydonation/files/Copyright-FREE-IMAGES/ If you use our templates or images please support us with some coins and share our project to your social media channels.
