Open Source Software Development Software - Page 3
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Brownie
A Python-based development and testing framework for smart contracts
Brownie is a Python-based development and testing framework for smart contracts targeting the Ethereum Virtual Machine. Powerful debugging tools, including python-style tracebacks and custom error strings. The recommended way to install Brownie is via pipx. pipx installs Brownie into a virtual environment and makes it available directly from the command-line. Once installed, you will never have to activate a virtual environment prior to using Brownie. Brownie documentation is hosted at Read the Docs. Use tox to run the complete suite against the full set of build targets, or pytest to run tests against a specific version of Python. If you are using pytest you must include the -p no:pytest-brownie flag to prevent it from loading the Brownie plugin. -
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Coinbase Pro
The official Node.js library for Coinbase Pro
Note: The gdax package is deprecated and might have to be removed from NPM. Please migrate to the coinbase-pro package to ensure future compatibility. Easy functionality to use in programmatic trading. A customizable, websocket-synced Order Book implementation. API clients with convenient methods for every API endpoint. Abstracted interfaces, don't worry about HMAC signing or JSON formatting; the library does it for you. To use optional parameters with callbacks, supply the options as the first parameter(s) and the callback as the last parameter. -
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Cosmos SDK
A Framework for Building High Value Public Blockchains
Cosmos is an ever-expanding ecosystem of interconnected apps and services, built for a decentralized future. The Cosmos SDK is a framework for building blockchain applications. Tendermint Core (BFT Consensus) and the Cosmos SDK are written in the Golang programming language. Cosmos SDK is used to build Gaia, the first implementation of the Cosmos Hub. The Cosmos SDK has mostly stabilized, but we are still making some breaking changes. The Cosmos SDK is an open-source framework for building multi-asset public Proof-of-Stake (PoS) blockchains, like the Cosmos Hub, as well as permission Proof-of-Authority (PoA) blockchains. Blockchains built with the Cosmos SDK are generally referred to as application-specific blockchains. The goal of the Cosmos SDK is to allow developers to easily create custom blockchains from scratch that can natively interoperate with other blockchains. -
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Create Eth App
Create Ethereum-powered apps with one command
Create Ethereum-powered apps with one command. Create Eth App works on macOS, Windows, and Linux. If you've previously installed create-eth-app globally via yarn global add create-eth-app, we recommend you uninstall the package using yarn global remove create-eth-app and use the yarn create eth-app shorthand to ensure that you use the last version. When you’re ready to deploy to production, create a minified bundle with yarn run react-app:build. You’ll need to have Node 14 or later version on your local development machine (but it’s not required on the server). You can use nvm (macOS/Linux) or nvm-windows to switch Node versions between different projects. You'll also need Yarn on your local development machine. This is because Create Eth App relies on Yarn Workspaces, a feature not supported by Npm. -
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Dapp tools by DappHub
Dapp, Seth, Hevm, and more
Command line tools and smart contract libraries for Ethereum smart contract development. All you need Ethereum development tool. Build, test, fuzz, formally verify, debug & deploy solidity contracts. Ethereum CLI. Query contracts, send transactions, follow logs, slice & dice data. Testing-oriented EVM implementation. Debug, fuzz, or symbolically execute code against local or mainnet state. Sign Ethereum transactions from a local keystore or hardware wallet. dapptools is currently in a stage of clandestine development where support for the casual user may be deprived. The software can now be considered free as in free puppy. Users seeking guidance can explore using foundry as an alternative. This repository contains the source code for several programs hand-crafted and maintained by DappHub, along with dependency management, courtesy of Nix. -
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DemocracyEarth Wallet
Censorship resistant democracies
Decentralized human identity without sybils or bots. Built with Kleros and the Ethereum community. No servers or databases are used. Control your identity with any Ethereum wallet. Contribute to the success of UBI and Proof of Humanity by leveraging ETH. Keep ETH or DAI in our smart contract vaults and help burn UBI tokens using yield. Half the yield is used to buy UBI. UBI is then burned, reducing its supply. No biometrics or real names are required. Just a quick video that proves your humanity. Audit any profile without permission. Challenged profiles go to a Kleros court. UBI is a Universal Basic Income token that gets streamed using Ethereum to verified Proof of Humanity profiles. ETH or DAI is lended via Yearn Finance. Earn the cumulative interest. -
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ERC-721 Token
The reference implementation of the ERC-721 non-fungible token
This is the complete reference implementation of the ERC-721 non-fungible token standard for the Ethereum and Wanchain blockchains. It is also compatible with other EVM compatible chains like Binance Smart Chain (BSC), Avalanche (AVAX) etc. This is an open-source project, complete with Hardhat testing. The purpose of this implementation is to provide a good starting point for anyone who wants to use and develop non-fungible tokens on the Ethereum and Wanchain blockchains. Instead of re-implementing the ERC-721 yourself you can use this code which has gone through multiple audits and we hope it will be extensively used by the community in the future. Note that this implementation is more restrictive then the ERC-721 standard since it does not support payable function calls out of the box. You are however free to add this yourself. -
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ETHEReact
A decentralized e-commerce platform!
ETHEReact is a full stack DApp; demonstrating e-commerce capabilities without any database powering the backend but the EVM standing tall! This is not a product in itself but the idea for aspiring blockchain enthusiasts to uncover the potential; end-to-end! This app is comprised of Truffle powered testrpc (which is also called ganache) facilitating local development.& Web3 bridges Ethereum to ReactJS! -
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Echidna
Ethereum smart contract fuzzer
Echidna is a weird creature that eats bugs and is highly electrosensitive (with apologies to Jacob Stanley) More seriously, Echidna is a Haskell program designed for fuzzing/property-based testing of Ethereum smarts contracts. It uses sophisticated grammar-based fuzzing campaigns based on a contract ABI to falsify user-defined predicates or Solidity assertions. We designed Echidna with modularity in mind, so it can be easily extended to include new mutations or test specific contracts in specific cases. Optional corpus collection, mutation and coverage guidance to find deeper bugs. Powered by Slither to extract useful information before the fuzzing campaign. Source code integration to identify which lines are covered after the fuzzing campaign. Curses-based retro UI, text-only or JSON output. -
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Ethereum Mining NVIDIA Graph Card Ubuntu
USB flash drive ISO image for Ethereum, Zcash and Monero mining
USB flash drive ISO image for Ethereum mining with NVIDIA graphics cards and Ubuntu GNU/Linux (64-bit Intel/AMD (x86_64)). Other cryptocurrencies, such as Monero or Zcash, can also be mined. With this ISO image, you can immediately mine Ethereum (ETH). Do not spend long time searching and researching. If you do not trust me and do not want to use the image, you will find all configuration files and scripts in the files folder. You only have to install an Ubuntu Linux with all the drivers and tools yourself. It is recommended to test that the image is correct and safe to use. The MD5 calculation gives a checksum, which must equal the MD5 value of a correct ISO image. Set the primary graphics output to one of your NVIDIA cards. Disable Secure Boot (UEFI) and boot from the USB flash drive. After a minute uptime, a script (screen) starts automatically in the background, which starts the mining. -
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EthereumJS Monorepo
Monorepo for the Ethereum VM TypeScript Implementation
This repository holds various protocol building blocks of the Ethereum blockchain execution layer and is managed by the Ethereum Foundation JavaScript team. There is a TypeScript implementation of the Ethereum Virtual Machine (EVM) ready to be used in Node.js or a browser environment, implementations of core structural blockchain building blocks like an Ethereum Tx, Block or Blockchain as well as a Trie (Merkle Patricia Tree) and devp2p (execution networking layer) implementation. All libraries are bound together by the core Common library keeping track of chain specifics and hardfork changes. They are complemented by helper packages like RLP for data encoding/decoding or Util, providing helper functionalities like (byte) conversion, signatures, types and others. Finally, the EthereumJS Execution Client (EthereumJS) has been in active development for some time now. It already serves a variety of purposes like testing, research (e.g. EIPs) and developer tooling. -
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Ethermint
Ethermint is a Cosmos SDK library for running scalable EVM chains
Ethermint is a scalable and interoperable Ethereum library, built on Proof-of-Stake with fast finality using the Cosmos SDK which runs on top of Tendermint Core consensus engine. Evmos is a scalable and interoperable Ethereum blockchain, built on Proof-of-Stake with fast finality. For prerequisites and detailed build instructions please read the Evmos Installation instructions. In Ethereum, the personal API manages private keys in the keystore. We needed to implement this functionality on Ethermint so that Ethereum keys and signing would all be compatible. Since the Cosmos-SDK’s keyring doesn’t explicitly support locking and unlocking of keys the way Ethereum does, a workaround had to be implemented. Unlocking a key is done by exporting it from the Cosmos keyring via decrypting the file and storing it in memory. Locking the key deletes it from memory, leaving it only as an encrypted file on-disk. -
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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. Solium does not strictly adhere to Solidity Style Guide. It aims to promote coding practices agreed upon by the community at large. You can specify rules or plugins to apply as command line options. If you specify one, it overrides its corresponding configuration in the soliumrc file. -
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Exonum
An extensible open-source framework for creating blockchain apps
Exonum is an extensible open-source framework for creating blockchain applications. Exonum can be used to create cryptographically powered distributed ledgers in virtually any problem domain, including FinTech, GovTech, and LegalTech. The Exonum framework is oriented towards creating permissioned blockchains, that is, blockchains with the known set of blockchain infrastructure providers. Blockchain is a groundbreaking technology that can help streamline and improve key business processes including logistics, asset management, auditing, and more. An Exonum blockchain can reduce inefficiencies and build security and trust in all sectors including government, healthcare, education, real estate, insurance and retail. The Exonum platform is a leading blockchain framework, designed to bring efficiency and security to your operations. Easy coordination with other services and processes. -
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Free Web3 Resources
A list of FREE resources to make Web3 accessible to everyone
This is a list of Free Web3 Resources links to learn Blockchain development. -
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Gitcoin Web
Grow Open Source
Grants Protocol aims to decentralize funding access, empowering any community to run their own grants program. We've helped thousands of projects and teams grow their open-source ecosystems. The internet has unlocked unprecedented opportunities for collaboration and creation. 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. -
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Hyperledger Burrow
A permissioned Ethereum smart-contract blockchain node
Hyperledger Burrow is a permissioned Ethereum smart-contract blockchain node. It executes Ethereum EVM and WASM smart contract code (usually written in Solidity) on a permissioned virtual machine. Burrow provides transaction finality and high transaction throughput on a proof-of-stake Tendermint consensus engine. Burrow is a fully-fledged blockchain node and smart contract execution engine -- a distributed database that executes code. Burrow runs Ethereum Virtual Machine (EVM) and Web Assembly (WASM) smart contracts. Burrow networks are synchronized using the Tendermint consensus algorithm. A node can detect if its state is corrupted or if a validator is dishonestly executing the protocol. Run a private or public permissioned network. Stakeholders may vote for autonomous smart contract upgrades. Application state is organised in an event stream and can drive external systems. -
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LEAN
Lean algorithmic trading engine by QuantConnect
Automated accounting for splits, dividends, and corporate events like delistings and mergers. Avoid selection bias with dynamically generated assets. Create and select asset universes on proprietary data and indicators. Automatically track portfolio performance, profit and loss, and holdings across multiple asset classes and margin models in the same strategy. Trigger regular functions to occur at desired times, during market hours, on certain days of the week, or at specific times of day. Backtest on almost any time series and import your proprietary signal data into your strategy. Everything is configurable and pluggable. LEAN's highly modular foundation can easily be extended for your fund focus. Use combinations of margin, fill, and slippage models to simulate a liquidity endpoint. 100+ popular technical indicators built, tested, and ready for use. Applicable to any data source. -
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Lightning
An easy-to-use cross-platform Lightning wallet
This is still early technology and there’s a risk of losing all of your funds. We recommend not putting in more money than you are willing to lose. Pocket Money, prebuilt and signed releases with auto-update (recommended for most users). Tin Foil Hat, if you'd rather build it yourself and do it without auto-updates, follow the instructions. To build the mobile app locally, see the README in the /mobile directory for instructions. Running in development mode can allow you to run in full node mode instead of the default neutrino mode, and will also allow you to run in simnet node for testing. The app will use its own lnd data/lnd dir and does not share state with other lnd installations on your system. See setup local cluster on how to set up your simnet cluster for development. -
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OpenEthereum
The fast, light, and robust client for the Ethereum mainnet
Fast and feature-rich multi-network Ethereum client. Built for mission-critical use: Miners, service providers, and exchanges need fast synchronization and maximum uptime. OpenEthereum provides the core infrastructure essential for speedy and reliable services. Built for mission-critical use: Miners, service providers, and exchanges need fast synchronisation and maximum uptime. OpenEthereum provides the core infrastructure essential for speedy and reliable services. OpenEthereum's goal is to be the fastest, lightest, and most secure Ethereum client. We are developing OpenEthereum using the Rust programming language. OpenEthereum is licensed under the GPLv3 and can be used for all your Ethereum needs. By default, OpenEthereum runs a JSON-RPC HTTP server on port :8545 and a Web-Sockets server on port :8546. This is fully configurable and supports a number of APIs. You can generate documentation for OpenEthereum Rust packages that automatically opens in your web browser. -
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Oyente
An Analysis Tool for Smart Contracts
A container with the required dependencies configured can be found here. The image is however outdated. We are working on pushing the latest image to dockerhub for your convenience. If you experience any issues with this image, please try to build a new docker image by pulling this codebase before open an issue. A collection of the utilities that were developed for the paper are in misc_utils. Use them at your own risk - they have mostly been disposable. This is an improved version of the tool used for the paper. Benchmarks are not for direct comparison. To run the benchmarks, it is best to use the docker container as it includes the blockchain snapshot necessary. In the container, run batch_run.py after activating the virtualenv. Results are in results.json once the benchmark completes. -
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Raiden Network
Raiden Network
Use Raiden to enrich your dApp with nearly instant, low-fee and scalable payments. It comes with an easy-to-use API and is compatible with the Ethereum ERC20 token standard. Incentivized, decentralized P2P live streaming with micropayments using Raiden, introducing “Proof-of-Stream-Payment”. The Raiden Network is an infrastructure layer on top of the Ethereum Blockchain. While the basic idea is simple, the underlying protocol is quite complex and the implementation non-trivial. Nonetheless the technicalities can be abstracted away, such that developers can interface with a rather simple API to build scalable decentralized applications based on the Raiden Network. The Raiden Network is an off-chain scaling solution, enabling near-instant, low-fee and scalable payments. It's complementary to the Ethereum Blockchain and works with any ERC20 compatible token. The Raiden project is work in progress. -
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Rainbow Ethereum
The Ethereum wallet that lives in your pocket
Rainbow is a fun, simple, and secure way to get started with crypto and explore the new world of Ethereum. You can use Rainbow to purchase, manage, and display Ethereum-based assets. Great for newcomers and power users alike, Rainbow allows you to be in total control of your money. Unlike a crypto exchange such as Coinbase, Rainbow doesn't hold your assets on your behalf. You own them directly thanks to the power of cryptography and the Ethereum blockchain. You can instantly send, receive, and trade assets from your crypto wallet whenever you want without having to worry that your funds might be held by a financial institution. With Rainbow, you can trade on Uniswap, the world's leading decentralized exchange (DEX), directly within the app. Buy ETH and DAI using Apple Pay + your debit card to get started quickly. Find trending tokens, top liquidity pools, and new assets in the Discover section. Use WalletConnect to login to decentralized apps. -
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RainbowKit
The best way to connect a wallet
Make your Ethereum login experience feel right at home on your website. RainbowKit allows you to fully customize color, border radius, wallet providers, and a lot more, all through an easy-to-use API. RainbowKit provides a fast, easy, and highly customizable way for developers to add a great wallet experience to their applications. We handle the hard stuff so developers and teams can focus on building amazing products and communities for their users. Building RainbowKit has been an incredibly fun effort with many people at Rainbow and our friends at other companies. We're always looking to make RainbowKit better, so please let us know how we can improve. -
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Robin-Stocks API Library
This is a library to use with Robinhood Financial App
This is a library to use with Robinhood Financial App. It currently supports trading crypto-currencies, options, and stocks. 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. You will also need to fill out all the fields in .test.env. I recommend that you rename the file as .env once you are done adding in all your personal information.
