Smart-Contracts Packages

A developer-friendly framework/library in solidity to modify & deploy OPStack ’s contracts in a modular style.

Interactive smart contract generator based on OPStack Contracts.

Hardhat TypeScript plugin for Quai Network

Hardhat Plugin For Replicable Deployments And Tests

Simple ERC721 NFT with Merkle Proof for WhiteList, using Hardhat and Foundry

JavaScript SDK for the OpenSea marketplace. Let users buy or sell crypto collectibles and other cryptogoods, all on your own site!

Signature validation library aiming to verify all different signature types for Ethereum and other EVM chains, including smart contract signatures (EIP 1271) and typed data (EIP 712)

A JavaScript library for generating Groth16 verifier compatible with the Solana blockchain.

CLI to create solidity headers

State-of-the-art, highly opinionated, hyper-optimised, and secure 🐍Vyper smart contract building blocks.

The Aragon OSx contracts package containing common utilities

JavaScript SDK for the OpenSea marketplace helps developers build new experiences using NFTs and our marketplace data!

Hardhat Plugin To Test Huff Contracts

A low level programming language for the Ethereum Virtual Machine

JavaScript SDK for the OpenSea marketplace. Returns ABI encoded data.

JavaScript SDK for the OpenSea marketplace. Let users buy or sell crypto collectibles and other cryptogoods, all on your own site!

JavaScript SDK for the OpenSea marketplace. Let users buy or sell crypto collectibles and other cryptogoods, all on your own site!

JavaScript SDK for the OpenSea marketplace. Let users buy or sell crypto collectibles and other cryptogoods, all on your own site!

JavaScript SDK for the OpenSea marketplace. Let users buy or sell crypto collectibles and other cryptogoods, all on your own site!

JavaScript SDK for the OpenSea marketplace. Let users buy or sell crypto collectibles and other cryptogoods, all on your own site!