Tag
#l2
102 repositories
Repos
A collection of React providers and hooks for StarkNet
A modular framework for building EVM consensus clients ⛵️✨
An experimental progressive and fast zkRollup written in Rust, focused on performance, modularity, and applying cutting-edge Verifiable Computation proof systems.
PiSwap L2. raspberry pi, hot swappable microSD private keys, easy button click L2 EVM uniswap contract swaps. Touch the blockchain.
The Ultimate Guide for L2s on Ethereum article. I originally posted this on Mirror, but here it is accessible to suggestions from the public. I will try to maintain this resource in my free time with new information and resources as time goes by.
An open-source library for Cardano developers using Hydra (Head)
Ten Documentation provides a comprehensive guide to understanding and integrating TEN
GOSH — Decentralized Operating System where you build consensus around your idea. GOSH is an advanced scalable multithreaded blockchain, and the first with a Freemium business model, offering powerful tools for everything from scientific research to finance and software security.
Modular subscription engine for Base that handles plans, recurring charges and Chainlink‑automated billing in USDC.
On‑chain invoicing rail for Base where every invoice is an NFT with lifecycle, escrowed payments and Base Pay bridging.
Multi‑vault treasury OS for Base that manages many segmented vaults, roles and policies under a single upgradeable controller.
On‑chain mandate and auto‑debit system for Base that lets apps pull funds within transparent per‑charge and aggregate limits
Proof‑aware payment rail on Base where transfers are gated by EAS attestations and ZK proofs for KYC, access and milestones.
Revenue splitting protocol on Base that routes incoming USDC into configurable pools and buckets for teams, investors, partners and treasuries.
Confidential Contracts for COTI - Privacy Preserving L2
Upgradeable escrow and dispute‑resolution layer for Base that secures high‑value payments with flexible rules, roles and Base Pay integration.
Standardized “Pay with Base” tap/endpoint system for one‑click USDC payments, limits and cooldowns, reusable across dApps and mini‑apps.
Useful tools for installing & monitoring Aztec node (Aztec Node Guide) in new testnet or mainnet.
A list of Base ecosystem links including (d)apps, projects and more. Base is an Ethereum L2, incubated by Coinbase.
React App interfacing with Loopring / GameStop Marketplaces NFT platforms
Open Work is a fully onchain todo list app on Base to give people insight into what you're working on
Send a message from L2 Scroll zkEVM testnet to L1 Goerli.
Contracts and code relating to our research into scaling ENS ('ENS Chain') to Layer 2 rollups.
Base Lite · Farcaster miniapp for explore BASE Ecosystem and Superchain Eco
A DxDAO product to empower users through fast, cheap and painless L2 crypto micropayments.
Current disk space requirements for Base chain data when restoring from snapshot
Send a message from L1 Goerli to L2 Scroll zkEVM testnet
⏳ Clarity Smart Contract for Time-Delayed Token Bestowal 🎁 This Clarity smart contract is designed to bestow tokens to a specified recipient after a predetermined time period. ⏱️ It can be particularly useful for scenarios where you want to automate the distribution of tokens at a future date. 📅✨
TypeScript SDK for COTI v2 - Confidentially Enabling L2
On‑chain invoicing rail for Base where every invoice is an NFT with lifecycle, escrowed payments and Base Pay bridging.
First and Based: Be the first person to mint a unique NFT in each new block on Base
Hardhat boilerplate for building, deploying, and testing smart contracts on the COTI v2 network. Includes pre-configured network settings, example contracts, deployment scripts, and a testing suite to streamline development and showcase COTI's unique blockchain features.
Example React app demonstrating Token-Gated content for NFTs on Loopring & GameStop L2 platform
TypeScript examples demonstrating integration with the COTI Network and Garbling Circuits (GC) framework for secure, privacy-preserving computations and blockchain interactions.
Optimism gas tracker site for the Optimism Mainnet network.
Calculate the cost of Data Availability in StarkNet
Python scripts demonstrating integration with the COTI Network and Garbling Circuits (GC) framework for secure, privacy-preserving computations and blockchain interactions.
In this L2s in Action series, I will walk you through a series of from-scratch tasks from simple to complex to build your own personalized L1 or L2 infrastructure.
The Aave Liquidator Bot is an automated system for Metis Network that monitors Aave lending positions, identifies accounts with health factors below the liquidation threshold, and executes profitable liquidations using flash loans to maintain protocol health while generating profits for the operator.
A tool to replay failed transaction messages on Optimism.
Calculate the cost of Data Availability in Optimism Bedrock
TypeScript SDK is designed for building token bridge applications between Tezos (L1) and Etherlink (L2)
A transpiler for StxScript to Clarity, making stacks smart contract development easy!
Code examples from COTI Developer Sessions, showcasing new features, best practices, and use cases for the COTI blockchain and its various tools/SDKs.
Ethereum (Evm) Batch and Balk Address and Private key Generator in Go
A dashboard tracking the gas price on StarkNet alpha-mainnet network.
Minimal TypeScript library for interacting with the Starknet ecosystem
A fully configurable, multichain NFT minting dApp that can be seamlessly embedded into any existing project — no backend server or external dependencies required. Built with the Thirdweb SDK , it supports Ethereum mainnet and leading Layer 2 networks including Linea, zkSync, Base, Arbitrum, Optimism, and Scroll.
A high-performance Bitcoin and Stacks native library for building decentralized applications on Hiro and Talent Protocol.
Gas estimator for Abstract (ZKsync L2). Shows execution gas, pubdata costs, and L1 fees.
Gas estimator for MegaETH. Shows dual gas costs (compute + storage), compares MegaETH vs Ethereum L1. Critical: MegaETH minimum gas is 60,000, not 21,000.
AILEE-Core is a Bitcoin Layer-2 orchestration and execution framework providing off-chain computation, deterministic state verification, federated learning coordination, and Bitcoin-anchored recovery under explicit, auditable trust assumptions.
Documentation for Force Inclusion mechanisms, Uncensored SDK and Uncensored Frontend
op-stack-devnet-kit is a starter project for running a local Ethereum development stack with L1 (Geth + Blockscout) and L2 (Optimism OP Stack + Blockscout).
Send a message from L1 Goerli to L2 Optimism testnet.
Send a message from L2 Optimism testnet to L1 Goerli.
Frontend Tool to use uncensored SDK for L2 transactions
Fork of @nomiclabs/hardhat-etherscan with Etherscan v2 API query parameter support for any chain
An experimental progressive and fast zkRollup written in Rust, focused on performance, modularity, and applying cutting-edge Verifiable Computation proof systems.
A high-performance, scalable multi-chain asset balance service that supports both Ethereum and Solana. It exposes a unified API for retrieving an address’s native tokens, ERC-20/SPL tokens, and NFT holdings.
📊 Daily Twitter/X bot posting TVL & transaction metrics for Base, Arbitrum, Optimism and Polygon L2s
Protocol fee splitter contracts for Base L2 — split revenue between treasury, stakers, team, and buyback mechanisms
Gnosis Safe multisig helper scripts for Base L2 — batch transactions, delegate calls, and Safe module management
Token and LP locker contracts for Base L2 — time-lock liquidity and team tokens to build investor trust
WFAIR bridge: 1:1 wrapped FairCoin on Base (Ethereum L2). Custodial bridge service + ERC-20 contract.
Smart Meta‑Facilitator (SMF) for x402 on Base – Atomic USDC escrow + Merkle batch settlement contract, TypeScript SDK, and examples for routing/settling payments on Base mainnet.