Gitcoin

# Today Web3 has evolved into a multi-chain ecosystem with a plethora of non-EVM and countless EVM chains. # Problem Cross-chain applications hit integration bottlenecks while integrating different chain types. The learning curve to integrate different wallet SDKs is very steep and littered with blockers. There are many different packages that are developed by each ecosystem and they have different interfaces. Each cross-chain dapp would need to implement these interfaces again and…

Echidna and its rewritten version, Medusa (https://github.com/crytic/medusa), are the de-facto smart contracts fuzzers. They provide parallelized property-based testing of smart contracts, allowing their users to find in-depth vulnerabilities. Both tools are open-source and are frequently used by security researchers.

Slither is a Solidity & Vyper static analysis framework written in Python3. It runs a suite of vulnerability detectors, prints visual information about contract details, and provides an API to easily write custom analyses. Slither enables developers to find vulnerabilities, enhance their code comprehension, and quickly prototype custom analyses. Slither is frequently used by security researchers and developers and has been integrated into many codebases. It provides regular updates and has…

Impact Garden is a data generation platform in which contributors (projects or individuals) are able to register their contributions and have them reviewed by those who have benefitted from them. These projects, their individual contributions and the reviews they receive are stored onchain through attestations (EAS). On the platform, people are able to not only leave their feedback for the contributors and projects to improve their work, but also for others to discover tools or contributions…

blocksmith.js is a minimal Javascript testing framework for Ethereum contract development using foundry-rs and ethers. Foundry is great speed-wise but writing tests in Solidity is a disaster and the command-line interface is bad for complex operations. Hardhat is slow, has way too much boilerplate, interacts poorly with modern ESM. Both projects are very "do it our way". The result is that many contracts don't have tests, and the tests that exist aren't end-to-end. OTOH, blocksmith.js is…

**Open Labels Initiative (OLI)** *Standardizing EVM Address Labeling for Enhanced Blockchain Transparency* **Website**: [Open Labels Initiative](https://github.com/openlabelsinitiative/OLI) **Founded by:** growthepie & walletlabels. --- ### About Open Labels Initiative 📚 The **Open Labels Initiative (OLI)** is a community-driven project aimed at addressing the fragmentation and non-standardization of blockchain labels across the Ethereum ecosystem. OLI introduces an open,…

As the attestation ecosystem accelerates, delivering an exceptional devex has been a priority focus. These libraries and tools are designed to speed up development time, reduce errors, increase decentralization, and improve the overall experience of building trustworthy applications using attestations. ## **EAS SDK** The EAS SDK simplifies interaction with EAS contracts, allowing developers to integrate attestations into their projects without directly interacting with the smart contracts.…

Polykey is a decentralized key management and secret-sharing platform that eliminates the need for centralized authorities or servers. It securely manages and distributes encrypted data, such as credentials and other sensitive information, across distributed networks. Users maintain full control over their secrets without relying on third parties, using a peer-to-peer network where they communicate directly to share and manage secrets. This approach prioritizes privacy, security, and user…

`forge-stack-tracer` is a CLI tool designed to convert Foundry test output into interactive stack traces, simplifying the debugging process for Solidity developers. With `forge-stack-tracer`, developers can easily inspect their test cases by generating comprehensive static HTML reports, offering intuitive and navigable stack traces. It is an essential tool for anyone using the Foundry framework to test and troubleshoot Ethereum smart contracts. The tool is integrated with Swiss-Knife.xyz’s…

Passport XYZ is the premier web3 native offering that enables ecosystems to protect, understand and organically grow what matters most – their communities. Passport is at the confluence of a best in class identity solution, backed by the most relevant and comprehensive data analysis toolset that also offers communities the ability to ascribe reputation. Born from Gitcoin’s Grants program and the need for anti-Sybil protection, Passport has now evolved to an independent organization focused on…

**ABI Ninja provides an intuitive frontend for contracts from the most popular EVM networks, currently supporting:** - **Verified contracts**: Pulls the ABI with `getsourcecode` endpoint from Etherscan. - **Unverified contracts**: Two different options are available: 1. Provide the ABI and the contract address. 2. Decompile using heimdall-rs. - **Proxy contracts**: Also using `getsourcecode` endpoint to detect proxy contracts and provide the implementation…

WalletLabels is a user-friendly open source app that simplifies the identification of on-chain wallets with custom labels. In a world of obscure transactions, our intuitive interface lets you easily search and categorize wallet addresses by name, label, or entity type, transforming anonymous hashes into meaningful insights.