Development Tools

OP Stack

Unichain is built on the OP Stack. Get started with these key resources:

• Interoperability Overview
• SuperchainERC20 Starterkit
• Supersim
• Supersim Documentation

Supported Networks

• Unichain Mainnet
• Unichain Sepolia Testnet

OpenZeppelin

OpenZeppelin provides open-source development tools and security services that power the leading Web3 protocols and applications. On Unichain, developers can leverage:

• Solidity Contracts Library: Battle-tested smart contract building blocks
• Solidity Contracts Wizard: No-code contract generator
• Smart Contract Security Audits: Professional security assessment
• Uniswap Hooks Library: Secure and modular hooks for Uniswap v4
• Development and automation tools such as Monitors, Actions, and Relayers

Get started here.

Supported Networks

• Unichain Mainnet
• Unichain Sepolia Testnet

Thirdweb

Thirdweb is a full stack, open-source development platform for web3 apps & games, offering client-side SDKs for user onboarding & identity, backend servers for gas sponsorship & onchain transactions, data infrastructure for blockchain indexing, and audited smart contracts with deployment tooling.

Get started here

Supported Networks

• Unichain Mainnet
• Unichain Sepolia Testnet

Gelato

Gelato provides a relay service that enables secure gasless transactions for a smoother user experience in web3 applications. With Gelato Relay, developers can:

• Enable users to pay for transactions by simply signing a message
• Implement sponsored transactions where developers cover gas costs
• Use ERC2771 for secure user authentication
• Track transaction status through WebSocket subscriptions or polling

Get started with Gelato Relay by:

• Installing the SDK: yarn add @gelatonetwork/relay-sdk
• Reviewing the documentation
• Exploring example implementations

Supported Networks

• Unichain Mainnet
• Unichain Sepolia Testnet