Showing 88 open source projects for "contract"

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  • 1
    ZoKrates

    ZoKrates

    A toolbox for zkSNARKs on Ethereum

    ...One particular family of ZKPs is described as zero-knowledge Succinct Non-interactive ARguments of Knowledge, a.k.a. zkSNARKs. zkSNARKs are the most widely used zero-knowledge protocols, with the anonymous cryptocurrency Zcash and the smart-contract platform Ethereum among the notable early adopters. Ethereum runs computations on all nodes of the network, resulting in high costs, limits in complexity, and low privacy. zkSNARKs have been enabling to only verify computations on-chain for a fraction of the cost of running them, but are hard to grasp and work with.
    Downloads: 0 This Week
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  • 2
    TypeChain

    TypeChain

    TypeScript bindings for Ethereum smart contracts

    TypeChain generates only TypeScript typings (d.ts) files, if you're looking for "opinionated", "batteries included" solution check out our new project: eth-sdk. It generates typesafe, ready to use ethers.js wrappers and uses etherscan/sourcify to automatically get ABIs based only on smart contract addresses. Under the hood, eth-sdk relies on TypeChain. Interacting with blockchain in Javascript is a pain. Developers need to remember not only a name of a given smart contract method or event but also it's full signature. This wastes time and might introduce bugs that will be triggered only in runtime. TypeChain solves these problems (as long as you use TypeScript). ...
    Downloads: 0 This Week
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  • 3
    Create Eth App

    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...
    Downloads: 0 This Week
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  • 4
    Remix IDE

    Remix IDE

    Browser-based compiler and IDE

    Remix IDE is an open source web and desktop application. It fosters a fast development cycle and has a rich set of plugins with intuitive GUIs. Remix is used for the entire journey of contract development as well as act as a playground for learning and teaching Ethereum. Remix IDE is part of the Remix Project which is a platform for development tools that use a plugin architecture. It encompasses sub-projects including Remix Plugin Engine, Remix Libs, and of course Remix-IDE. Remix IDE is a powerful open source tool that helps you write Solidity contracts straight from the browser. ...
    Downloads: 13 This Week
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  • 5
    solgraph

    solgraph

    Visualize Solidity control flow for smart contract security analysis

    Visualize Solidity control flow for smart contract security analysis. Generates a DOT graph that visualizes the function control flow of a Solidity contract and highlights potential security vulnerabilities. A nice example of piping contract source that is in your clipboard through solgraph, dot, and preview: (Use whatever image previewer is available on your system; Preview.app is available on Mac) You have to have graphviz installed (brew install graphviz) to render the DOT file as an image. ...
    Downloads: 0 This Week
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  • 6
    Cancelable Async Flows

    Cancelable Async Flows

    Cancelable Async Flows (CAF)

    ...This approach avoids brittle timeouts and “fire-and-forget” leaks by making cancellation a first-class concern. CAF is framework-agnostic and pairs well with fetch, timers, or custom async primitives, giving you a consistent contract for stopping in-flight operations. The result is safer UI interactions and services that don’t keep doing work the user no longer needs.
    Downloads: 0 This Week
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  • 7
    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 address. ...
    Downloads: 0 This Week
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  • 8
    Swagger2Markup

    Swagger2Markup

    Swagger to AsciiDoc or Markdown converter

    ...Swagger2Markup supports the Swagger 1.2 and 2.0 specifications. Internally it uses the official swagger-parser and my markup-document-builder. You can use Swagger2Markup to convert your contract-first Swagger YAML file into a human-readable format.
    Downloads: 0 This Week
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  • 9
    Dapp tools by DappHub

    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.
    Downloads: 0 This Week
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  • 10
    ERC-721 Token

    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...
    Downloads: 0 This Week
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  • 11
    Hyperledger Burrow

    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.
    Downloads: 0 This Week
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  • 12

    SPL Compiler

    A low-level system programming language with high-level syntax

    ... * Be as efficient as C (at run-time) and as high-level as possible for the programmer. * Promote modularity and ease the development of large-scale component-based software. * Enable programming-by-contract and other high-level features (as long as they incur no extraordinary costs at run-time). * Provide a stricter and more platform-independent type system than C. * Allow direct use of existing C and platform (e.g. Win32 API) libraries. This phrase from the "SPL Language Reference" says it all: "One could say SPL is what C should have been, were it not for the limitations of the time when C was designed".
    Downloads: 1 This Week
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  • 13
    DemocracyEarth Wallet

    DemocracyEarth Wallet

    Censorship resistant democracies

    ...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. ...
    Downloads: 0 This Week
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  • 14
    EiffelStudio
    EiffelStudio is an Integrated Development Environment (IDE) that provides comprehensive facilities to programmers. It offers a comprehensive suite of tools that enable programmers to produce correct, reliable, and maintainable software while keeping control of the development process. If you want to create fast, robust, scalable applications, then EiffelStudio™ will offer you a cost-effective solution. Imagine being able to model your system as you think – capturing your requirements and...
    Downloads: 5 This Week
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  • 15
    0x Monorepo

    0x Monorepo

    0x protocol monorepo - includes our smart contracts

    0x protocol monorepo, includes our smart contracts and many developer tools. 0x is an open protocol that facilitates the trustless, low-friction exchange of Ethereum-based assets. For more information on how it works, check out the 0x protocol specification. This repository is a monorepo including the 0x protocol smart contracts and numerous developer tools. Each public sub-package is independently published to NPM. Visit our developer portal for a comprehensive list of core &...
    Downloads: 0 This Week
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  • 16
    Scaffold-ETH

    Scaffold-ETH

    Forkable Ethereum dev stack focused on fast product iterations

    scaffold-eth is a developer starter kit for building Ethereum-powered applications, bundling a smart-contract workspace with a live-reloading front end and batteries-included tooling. It provides a local blockchain environment, contract templates, and scripts for compile, deploy, verify, and test, wired to a React/Next.js UI that reflects contract state in real time. The stack encourages rapid iteration: edit a Solidity contract, redeploy with one command, and immediately interact through generated components and hooks that wrap ethers.js. ...
    Downloads: 0 This Week
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  • 17
    Subspace

    Subspace

    Library for Reactive Dapp Development with auto syncing

    Subspace is a framework agnostic JS library that embraces reactive programming with RxJS, by observing asynchronous changes in Smart Contracts, and providing methods to track and subscribe to events, changes to the state of contracts and address balances, and react to these changes and events via observables. Subspace also takes care of syncing under the hood, saving & loading the state in a local database. Methods are provided to track and subscribe to events, contract & state balances, and react to changes via observables. No matter your favorite JS framework, you can use Subspace to simplify your development process. It works with React or Angular in the browser, and of course plays well with nodejs. Subspace saves state to a local database ensuring your dApp always syncs from the last known point, even after reload.
    Downloads: 0 This Week
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  • 18
    0xcert

    0xcert

    JavaScript framework for building decentralized applications

    The 0xcert Framework is a platform that provides a complete set of tools for building powerful decentralized applications (dapps). Our mission is to equip application developers with a secure, agnostic, and opinionated framework with conventions to enable interoperability between applications. If you are new to blockchain try the 0xcert API for quick deployments of dapps with minimal effort.
    Downloads: 0 This Week
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  • 19
    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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  • 20
    FoldingTabBar.iOS

    FoldingTabBar.iOS

    Folding Tab Bar and Tab Bar Controller

    YALFoldingTabBar is a subclass of a standard UIView. We wanted to make this component expand and contract in response to a user tapping. When the component is closed you can only see a central button (“+”). When tapping on it, our custom Tab Bar expands letting other tabBarItems appear, so that the user can switch the controllers. YALFoldingTabBarController is a subclass of UITabBarController with custom animating YALFoldingTabBar.
    Downloads: 0 This Week
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  • 21
    Oyente

    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...
    Downloads: 0 This Week
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  • 22
    Satsuma .NET Graph Library

    Satsuma .NET Graph Library

    a delicious .NET graph library

    Satsuma is a graph library for .NET, written in C#. Satsuma is an easy-to-use and flexible library, which implements all the necessary graph structures, and the fastest possible graph algorithms. DOCUMENTATION: http://satsumagraph.sourceforge.net/ Satsuma is not a charting library. 'Graph' is used in the mathematical sense here (e.g. nodes connected with arcs). Satsuma is released under the zlib license. This license is very permissive and allows you to use Satsuma for both personal...
    Downloads: 0 This Week
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  • 23
    API Blueprint

    API Blueprint

    High-level API design language for web APIs

    API Blueprint. A powerful high-level API description language for web APIs. API Blueprint is simple and accessible to everybody involved in the API lifecycle. Its syntax is concise yet expressive. With API Blueprint you can quickly design and prototype APIs to be created or document and test already deployed mission-critical APIs. API Blueprint is built to encourage dialogue and collaboration between project stakeholders, developers and customers at any point in the API lifecycle. At the...
    Downloads: 0 This Week
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  • 24
    An MDA(model driven architecture) tool to generate a complete web / mobile app from a UML model. Will generate high quality , best practices compliant code from UML model for all tiers of an enterprise application i.e. presentation, persistence, plumbing
    Downloads: 0 This Week
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  • 25
    Contract++

    Contract++

    Contract Programming Library for C++

    **** THIS LIBRARY WAS MOVED INTO Boost **** New location: https://github.com/boostorg/contract C++ Contract Programming (a.k.a. Design by Contract or DbC). All Eiffel features supported: subcontracting, postcondition old and result values, optional contract compilation, customizable action on assertion failure, block invariants, loop variants, etc. Plus virtual specifiers, concept checking, named parameters. See: http://contractpp.sourceforge.net
    Downloads: 7 This Week
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