> For the complete documentation index, see [llms.txt](/llms.txt).

# Integrate Embedded Wallets with the Optimism Blockchain

Integrate Web3Auth seamlessly with EVM-based Optimism blockchain. For Web SDKs, Web3Auth returns a provider that can be directly used to initialize the libraries like ethers.js, web3.js etc. and make blockchain calls, while for Mobile & Gaming SDKs, the private key is available in the user scope which can be used in a similar way to initialize the respective blockchain interaction libraries and make calls to the network.

This documentation provides a straightforward guide for developers looking to implement blockchain connections quickly and effortlessly across various platforms.

## Chain details for Optimism[​](#chain-details-for-optimism "Direct link to Chain details for Optimism")

- Mainnet
- Sepolia Testnet

- **Chain ID:** 0xA
- **RPC URL:** You can use our bundled RPC service from Infura, or your own choice of RPC service for production.
- **Display Name:** Optimism Mainnet
- **Block Explorer Link:** `https://optimistic.etherscan.io`
- **Ticker:** ETH
- **Ticker Name:** Ethereum

- **Chain ID:** 0xAA37DC
- **Public RPC URL:** `https://sepolia.optimism.io`
- **Display Name:** OP Sepolia
- **Block Explorer Link:** `https://sepolia-optimistic.etherscan.io`
- **Ticker:** ETH
- **Ticker Name:** Ethereum

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