OpenZeppelin Contracts is a library for secure smart contract development.

A compilation of patterns and best practices for the smart contract programming language Solidity

Optimized Solidity snippets.

A collection of helpful contracts and libraries for use with Forge and Foundry

Securify v2.0

Factory smart contract to make easier and safer usage of the `CREATE` and `CREATE2` EVM opcodes as well as of `CREATE3`-based (i.e. without an initcode factor) contract creations.

A repository for automatically using the latest chainlink repo from the core chainlink repo.

Implementation of the Farcaster contracts

T-REX is a suite of smart contracts implementing the EIP 3643 and developed by Tokeny to manage and transfer financial assets on EVM blockchains

P256 signature verification solidity contract

Curated smart contract development and deployment tutorials, covering basics to advanced techniques for both beginners and experienced developers.

contracts

Mastering Blockchain Programming with Solidity, published by Packt

ERC-6551 reference implementation

EIP-2535 Diamond reference implementation using Hardhat and Solidity 0.8.*

Opinionated ERC-6551 account implementation

ERC-3525 Reference Implementation

A collection of Solidity libraries for interacting with the Farcaster messages on-chain

Smart wallet implementation, using ERC-4337

Nexus by Biconomy: ERC-7579 Modular Smart Account for Enhanced Account Abstraction

Social Recovery Wallet that hides the identities of Guardians until recovery.

Solidity, Defi, and blockchain security resources.

Example project showcasing EAS