optimism

Optimism is Ethereum, scaled.

Observations and tips checklist for auditing protocols on multiple chains 🧐

Generative Art Marketplace

The missing drop-in solution for realtime remote form validation in Rails.

A testnet open-source Layer 2 from the future, co-designed with the developer tools stack.

The fast blockchain messenger protocol

Full label data dump of top EVM chains in JSON/CSV.

Monorepo for OP Stack Types, Components, and Services built in Rust.

Ambire Wallet: making self-custody easy and secure for the EVM ecosystem

Comprehensive EVM SDK (Ethereum, Binance Smart Chain, Avalanche, Arbitrum, Optimism, Polygon) for iOS devices, implemented on Swift. Create wallets, watch wallets (read-only), sync transactions, filter transactions by type (erc20, bep20, swap transactions etc.), swap using native DEX protocols, connect to DeFi smart contracts using WalletConnect. Easily extendable to work with custom smart contracts. Full support for EIP1159.

A dApp enabling derivatives trading

Trusted tokenlists for 29 blockchains

An ERC20 token faucet on the Ethereum mainnet, layer 2s and testnets

📜 "Coinbase Verifications" is a set of Coinbase-verified onchain attestations that enable access to apps and other onchain benefits.

Comprehensive EVM SDK (Ethereum, Binance Smart Chain, Avalanche, Arbitrum, Optimism, Polygon) for Android, implemented on Kotlin. Create wallets, watch wallets (read-only), sync transactions, filter transactions by type (erc20, bep20, swap transactions etc.), swap using native DEX protocols, connect to DeFi smart contracts using WalletConnect. Easily extendable to work with custom smart contracts. Full support for EIP1159.

Modular framework for creating selective indexers and featureful backends for dapps

Interact with ethereum and EVM based chains via Zig!

This repository is for builders to get technical support, from the OP Stack to app development!

An NFT Marketplace running on ethereum, binance smart chain, polygon, avalanche, fantom, optimism and arbitrum powered by 0x smart contracts. Made in React/Next JS, MUI and Typescript.

Full free software with beautiful gui!