Build on Arbitrum with Cheetah AI
Leading Ethereum L2 with optimistic rollups and deep liquidity. Write Solidity smart contracts, test locally, and deploy to Arbitrum mainnet or testnet — all from one IDE.
40,000+
TPS
~15 minutes (to L1)
Finality
Optimistic
Consensus
ETH
Native Token
Arbitrum Development Features
Optimistic Rollup Technology
Full EVM Equivalence
Ethereum-level Security
Low Gas Fees
Largest L2 TVL
Nitro Technology Stack
Arbitrum Sepolia Testnet
Chain ID: 421614 • 1 faucet available
What You Can Build on Arbitrum
Deploy Smart Contract
beginnerLearn how to compile, test, and deploy your first smart contract to mainnet
Create ERC20 Token
beginnerBuild and deploy your own fungible cryptocurrency token
Create NFT Collection
intermediateBuild and deploy an ERC721 NFT collection with metadata
Build NFT Marketplace
advancedCreate a decentralized marketplace for buying and selling NFTs
Build DeFi Protocol
advancedCreate decentralized finance applications like lending and swapping
Create AMM DEX
advancedBuild an automated market maker decentralized exchange
Build Lending Protocol
advancedCreate a decentralized lending and borrowing platform
Implement Staking
intermediateAdd staking functionality to earn rewards on locked tokens
Yield Farming Contract
advancedBuild yield farming mechanics for liquidity incentives