Patrick Collins

claude-code-config. Opinionated defaults, documentation, and workflows for Claude Code at Trail of Bits

bip_utils. Generation of mnemonics, seeds, private/public keys and addresses for different types of cryptocurrencies

clearsig. A repo to help with erc7730 and 8213

rfc8785.py. A pure-Python implementation of RFC8785 (JSON Canonicalization Scheme)

clear-signing-erc7730-registry. JavaScript

battlechain-lib. Python

solskill.

tx-graph. TypeScript

safe-harbor. Solidity

zksync-era. zkSync era

justfuckinguselocalsafe. TypeScript

localsafe.eth. A 100% local edition of the safe wallet

vyper-by-example.github.io. TypeScript

wise-signer-snap. At least dump your calldata to an AI to understand what you're signing.

4-puppy-raffle-audit. Solidity

safe-tx-hash. Python

solady. Optimized Solidity snippets.

chain-tools. A site for gas tools, fees, and more

safe-hash-rs. Rust

walletbeat. An open repository of EVM-compatible wallets 🌸

TheInterceptor. The Interceptor is a browser extension that explains what kind of Ethereum transactions you are making

wise-signer. Why are you blindly signing? Stop it. Get some help. Get wise. Wise Signer.

reth. Modular, contributor-friendly and blazing-fast implementation of the Ethereum protocol, in Rust

full-stack-web3-cu.

ts-tsender-ui-cu. TypeScript

bsc-docker. Shell

CertoraProver. The Certora Prover is the state-of-the-art security tool for automated formal verification of smart contracts running on EVM-based chains, Solana and Stellar

wallet. Eternal Safe is a decentralized fork of Safe{Wallet}.

html-ts-coffee-cu. TypeScript

tsender-ui. TypeScript

zksync-upgrade-verification. A minimal repo to verify a zksync proposal

dotenv. Loads environment variables from .env for nodejs projects.

test-dapp. The sample dapp used for e2e testing and metamask-extension QA

synpress. Synpress is e2e testing framework based on Cypress.io and playwright with support for metamask.

llama.cpp. LLM inference in C/C++

multicall3. Multicall: Aggregate multiple constant function call results into one

evmole. Extracts function selectors, arguments, state mutability and storage layout from EVM bytecode, even for unverified contracts

safe-tx-hashes. Shell

seal-911. SEAL 911 is a project designed to give users, developers, and security researchers an accessible way to connect with a small group of highly trusted security professionals in case of emergency.

safe-utils. This UI calculates the Safe transaction hashes computing both the domain and messages hashes

web3-dev-containers. A repo to help users run code in isolated environments. Stay safe big dogs.

devcontainer. The Red Guild's devcontainer focused in web3 and security.

balanceScanner. Utility contract to query balances on chain

huff2. The new huff compiler, with improved codegen, label semantics & error messages.

moccasin-full-course-cu.

blockchain-basics-cu.

ctf-vy. Python

merkly. 🌳 The simple and easy implementation of Merkle Tree

safe-tx-checker. JavaScript

safe-tx-hashes-util. This Bash script calculates the Safe transaction hashes by retrieving transaction details from the Safe transaction service API and computing both the domain and message hashes using the EIP-712 standard.

rivet. Developer Wallet & DevTools for Anvil

videos. Code for the manim-generated scenes used in 3blue1brown videos

remix-favorites-cu. Vyper

py_ecc. Python implementation of ECC pairing and bn_128 and bls12_381 curve operations

benchmarking-frameworks. Solidity

mamushi. Formatter for Vyper

vheader-py. Python

vheader. A tool for making perfect vyper headers, inspired by transmissions11

headers. Generate perfect code headers every time.

toml. Tom's Obvious, Minimal Language

tomlkit. Style-preserving TOML library for Python

uv. An extremely fast Python package and project manager, written in Rust.

uvenv. uvenv: pipx for uv (🦀) on Linux and macOS

gaboon. Titanoboa-based vyper smart contract development framework

fee-splitter. Pipeline to reinvest crvUSD fees for growth.

vscode-vyper. Ethereum Vyper language support for Visual Studio Code

medusa. Parallelized, coverage-guided, mutational Solidity smart contract fuzzing, powered by go-ethereum

mesc. MESC is a specification for how crypto tools configure their RPC endpoints

titanoboa. a vyper interpreter

moccasin. Titanoboa-based vyper smart contract development framework

wake. Wake is a Python-based Solidity development and fuzz testing framework with built-in vulnerability detectors for building secure Ethereum dApps.

minimal-account-abstraction. Solidity

era-contracts. Smart Contract Submodule For zkSync Era

titanoboa-zksync. A Zksync plugin for the Titanoboa Vyper interpreter

TSender. A hyper gas optimized and formally verified smart contract, written in huff. 🐎

moodle. Moodle - the world's open source learning platform

web3j. Lightweight Java and Android library for integration with Ethereum clients

Pr000xy. A public utility ERC20 for creating & claiming transparent proxies with gas-efficient addresses.

GasliteDrop. Hyper Efficient Airdrops. Gas Bad.

brand-assets. Logos, colours and brand guidelines used at Cyfrin

zksync-contracts. Solidity

ERCs. The Ethereum Request for Comment repository

EIPs. The Ethereum Improvement Proposal repository

forge-template. Solidity

maturin. Build and publish crates with pyo3, cffi and uniffi bindings as well as rust binaries as python packages

rye. a Hassle-Free Python Experience

poethepoet. A task runner that works well with poetry or uv.

solidity-by-example.github.io. Solidity By Example

huff-stack-comments. A visual studio code extension that automatically generate the stack comments for Huff.

huffr. A CLI tool to generate stack evolution comment in your huff projects.

2024-03-snek-raffle. Python

ccip-contracts. Solidity

rwa-creator. Solidity

evm-diff. Diff EVM-compatible chains in a friendly format

public-private-key-demo. Demonstrates public / private key pairs and signing in a blockchain context. This is part 2 of my Blockchain 101 video explainer.

blockchain-demo. A web-based demonstration of blockchain concepts.

env-enc. TypeScript

euler. Solidity

3-gas-bad-nft-marketplace-audit. Solidity

prb-math. Solidity library for advanced fixed-point math

solana-starter-kit. Example code for using Chainlink on Solana

remix-workshops. Solidity

solc-select. Manage and switch between Solidity compiler versions

etherrealms-player-class-guide.

ctf. A minimal repo to create EVM/solidity capture the flags

1-horse-store-s23. C++

halmos. A symbolic testing tool for EVM smart contracts

sc-exploits-minimized. A repo to showcase web3 hacks

security-and-auditing-full-course-s23. The ultimate, most advanced, security, DeFi, assembly, web3 auditor course ever created.

aderyn. Solidity Static Analyzer that easily integrates into your editor

bls-keystore. Implementation of bls keystore - EIP 2335

diverge-converge-audit. TeX

salmonella. Wrecking sandwich traders for fun and profit

manifesto. The OpenTF Manifesto expresses concern over HashiCorp's switch of the Terraform license from open-source to the Business Source License (BSL) and calls for the tool's return to a truly open-source license.

2023-07-escrow. Solidity

enable-cryptocurrency-in-funding-yml. Star this repo and send an email to opensource@github.com if you'd like to see cryptocurrencies added as official options to the FUNDING.yml file for GitHub Sponsors

private-gpt. Complete API layer for private AI applications on local models: RAG, skills, tools, MCP, text-to-sql, and more. Works with any OpenAI-compatible inference server.

Updraft. Python

feedback. Discussions on the Solodit features

report-generator-template. A markdown-based template for generating Cyfrin audit reports, forked from Spearbit.

forge-deploy. Rust

foundry-full-course-cu.

brownie-stablecoin-v23. Python

ape-fund-me-v23. Python

foundry-defi-stablecoin-cu. Solidity

foundry-smart-contract-lottery-f23. Solidity

solmate. Modern, opinionated, and gas optimized building blocks for smart contract development.

foundry-devops. Solidity

prb-test. Modern collection of testing assertions and logging utilities for Solidity

OpenPositions.

pypandoc. Thin wrapper for "pandoc" (MIT)

trello_to_audit_report. Python

cyfrin-audit-reports. A list of public audit reports conducted by the Cyfrin team

audit-report-templating.

functions-hardhat-starter-kit. JavaScript

ethereum_formal_verification_overview. Overview of the formal verification projects in the Ethereum ecosystem.

weth-invariant-testing. Solidity

4naly3er. Static smart contract code 4naly3er

VenmoApiDocumentation. Venmo API Documentation

useful-solidity-patterns. Solidity

alchemy_sdk_py. An SDK to use the Alchemy API

unstoppable-ui. JavaScript

messi-v-ronaldo. Python

jonco11ins.

lens-blog. A minimal example of using Lens Protocol to build a blog

curve-stablecoin. Stablecoin powered by LLAMMAs

book. A book on all things Foundry, available at https://getfoundry.sh.

hey-1. Hey is a decentralized and permissionless social media app built with Lens Protocol 🌿

freeCodeCampOS. Test repo for external freeCodeCamp courses

royaldao-contracts. Royal DAO contracts Repo

solstat. A Solidity static analyzer to identify contract vulnerabilities and gas efficiencies.

smartbugs. SmartBugs: A Framework to Analyze Ethereum Smart Contracts

checkthechain. ctc is a tool for collecting and analyzing historical data of Ethereum and other EVM chains

vyper. Pythonic Smart Contract Language for the EVM

optimistic-brainfuck. Brainfuck rollup scaling experiment for fun

seaport. Seaport is a marketplace protocol for safely and efficiently buying and selling NFTs.

blockchain-developer-hub. Dive into blockchain and smart contract development.

curve-veBoost. Curve veCRV Boost Delegation

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

sc-language-comparison. Solidity

foundry-vyper. A package for deploying and compiling vyper code in foundry

evm-mnemonic. A barebones framework for hand tuned smart contracts in pure opcodes.

patrickalphac.com. TypeScript

huff-project-template. Foundry Repository Template that supports writing contracts in Huff using the foundry-huff library.

huff-starter-kit. A template repo to work with huff smart contracts and learn about low level EVM opcodes. Also Horse ♘.

huff-rs. A low-level assembly language for the Ethereum Virtual Machine built in blazing-fast pure rust.

huffmate. A library of modern, hyper-optimized, and extensible Huff contracts with extensive testing and documentation built by Huff maintainers.

foundry-huff. A Foundry Library for compiling, debugging, and working with Huff contracts in Solidity.

apeworx-starter-kit. A repo dedicated to showing how to make smart contracts in a purely pythonic environment

starter-kits. A repo of starter kits for working with various languages and frameworks across the smart contract ecosystem.

Foundry-Vyper. A Foundry template to compile and test Vyper contracts.

foundry-starter-kit. Solidity

hardhat-security-fcc. Solidity

hardhat-fund-me. Learning Smart Contracts with freecodecamp!

foundrydeploy. Python

web3uikit. Lightweight reusable Web3 UI components for dapps.

chainlink-fullstack. Full stack starter project showcasing Chainlink products on Ethereum (EVM)

full-blockchain-solidity-course-js. Learn Blockchain, Solidity, and Full Stack Web3 Development with Javascript

smart-contract-examples. Example and sample projects

foundry. Foundry is a blazing fast, portable and modular toolkit for Ethereum application development written in Rust.

defi-minimal. This repo is dedicated to making minimal repos of existing defi primatives.

foundry-starter-kit-old. Solidity

ethersplay. EVM dissassembler

hardhat-metamorphic-upgrades-fcc. JavaScript

hardhat-nft-fcc. JavaScript

forge-std. A collection of helpful contracts and libraries for use with Forge and Foundry

hardhat-smartcontract-lottery-fcc. JavaScript

solidity-coverage. Code coverage for Solidity smart-contracts

maat. Open-source symbolic execution framework: https://maat.re

hybrid-smart-contract-kit. Hybrid Smart Contract Kit

dao-template. TypeScript

ruby-eth. Gem for creating and signing Ethereum transactions.

full-stack-web3-metamask-connectors.

hardhat-fund-me-fcc. JavaScript

web3modal-example. Example using web3modal and Next.js

eth-ui. 🖇 React library of commonly used Ethereum hooks

appkit. The full stack toolkit to build onchain app UX

hardhat-deploy. hardhat deployment plugin

hardhat-exposed. Automatically expose internal Solidity functions for smart contract testing.

go-ethereum. Go implementation of the Ethereum protocol