This repository contains a collection of Solidity contracts uniquely useful to building on EVM on Flow. You'll find libraries, interface and abstract contracts, as well as contract implementations you may find useful in your own projects.

• WFLOW - the equivalent of WETH on Ethereum, a wrapped version of FLOW token.
  • Deployed to 0xd3bF53DAC106A0290B0483EcBC89d40FcC961f3e on Flow Testnet & Mainnet
• CadenceArchUtils - a library of utility functions for working with Cadence Arch precompiles.
• CadenceRandomConsumer - a contract that assists in the implementation of secure onchain randomness, intended to make the implementation of commit-reveal schemes easier to incorporate into your own projects.
• Xorshift128plus - an example pseudo-random number generator contract, helping you generate unique random numbers from onchain random sources.

To install these contracts using Foundry, you can use the following command:

foundry install onflow/flow-sol-utils

To install these contracts using Hardhat, you can use the following command:

npm install @onflow/flow-sol-utils