Superchain faucetSuperchain faucet (opens in a new tab)BridgeBridge (opens in a new tab)ExplorerExplorer (opens in a new tab)
GitHubGitHub (opens in a new tab)
  • BUILDERS
  • Notices (README)
    • Preparing for Holocene breaking changes
  • App developers
    • Overview
    • Superchain app quick start
    • Tutorials
      • Communicating between chains in Solidity
      • Bridging ETH with viem
      • Bridging ERC-20 tokens with viem
      • Bridging your custom ERC-20 token to OP Mainnet
      • Bridging your standard ERC-20 token to OP Mainnet
      • Viewing deposits and withdrawals by address
      • Tracing deposits and withdrawals
      • Estimating transaction costs
      • Triggering OP Mainnet transactions from Ethereum
    • Transactions
      • Transaction fees
      • Estimating fees
      • Setting gas parameters
      • Transaction statuses
      • Troubleshooting
    • Bridging
      • Basics of bridging
      • The Standard Bridge
      • Custom token bridges
      • Sending data between L1 and L2
    • App tools
      • Open source code repo
      • Supersim Multichain Development Environment
      • Superchain Dev Console (opens in a new tab)
  • Node operators
    • Architecture
    • Run a node in the Superchain
    • Tutorials
      • Running a node with Docker
      • Building a node from source
      • Running OP Mainnet from source
      • Running OP Sepolia from source
    • Configuration
      • Base configuration
      • Consensus layer configuration
      • Execution layer configuration
    • Node management
      • Using blobs
      • Using Snap Sync
      • Snapshot downloads
      • Monitoring
      • Troubleshooting
    • Network upgrades
    • JSON-RPC API
    • Software releases
  • Developer tools
    • Overview
    • Connecting
      • Networks and RPC endpoints
      • RPC providers
    • Building
      • Faucets
      • Oracles
      • NFT tools
      • Block explorers
      • Account abstraction
    • Monitoring
      • Analytics
      • Historical data
    • Metal L2 Tools
      • Metal L2 Mainnet Explorer (opens in a new tab)
      • Metal L2 Bridge (opens in a new tab)
      • Superchain Bridges (opens in a new tab)
      • Superchain Faucet (opens in a new tab)
      • Superchain Dev Console (opens in a new tab)
    • Fee calculator
  • METAL L2 MAINNET
  • Getting Started: Metal L2
  • Differences Between Ethereum and Metal L2
  • Networks and RPC Endpoints
  • Biconomy
  • Contract Addresses
  • Bridged Token Addresses
  • Identity
  • Testing
    • Running a local development environment
    • Testing apps on Metal L2
  • Security
    • Security Model & FAQ
    • Privileged Roles
    • Security Policy
  • OP STACK
  • About: OP Stack
  • Differences Between Ethereum and OP Stack Chains
  • OP Stack Components
  • Superchain Explainer
  • Design Philosophy & Principles
  • Protocol
  • Transactions
    • Transaction fees
    • Transaction flow
    • Transaction finality
    • Deposit flow
    • Withdrawal flow
    • Forced transaction
    • Cross domain transaction
    • Transactions
  • Features
    • SendRawTransactionConditional
  • Security
    • Security FAQs
    • Pause and unpause the Bridge
    • Audit reports
  • Audit reports
  • Fault Proofs
    • Fault proofs explainer
    • FP system components
    • FPVM: Cannon
    • OP-Challenger
    • MIPS.sol
    • FP Mainnet security
  • Rollup
    • Rollup overview
    • Derivation pipeline
    • Sequencer outages
  • Smart Contract overview
  • CONNECT
  • Contribute
    • Contribute to Metal L2 Docs
    • Docs Style Guide
  • Resources
    • Optimism Node Changelog (opens in a new tab)
    • Glossary
  • Superchain
  • The Superchain explainer
  • The Superchain Registry
  • Blockspace Charters and the Standard Rollup Charter
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Builders
Developer tools
Building

Building

This section provides information on account abstraction, block explorers, testnet faucets, Metal L2 NFT tools and oracles.

Account abstractionBlock explorersTestnet faucetsNFT toolsOracles
BuildingOracles
Metal L2 Documentation