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Optimism is a Layer 2 scaling solution for Ethereum, aiming to enable high-speed, low-cost transactions while maintaining a strong connection with the Ethereum network. The Optimism Supported Methods give developers the ability to interact with the Optimism network in a range of ways, including querying balances, executing transactions, and interacting with smart contracts.

Supported Chain Endpoints

BlockchainPortal API PrefixRelayChainIDBlockheight
Optimism Mainnetoptimism-mainnet0053Latest - 127 blocks
Optimism Archivaloptimism-archivalA053All block heights
Optimism Sepolia Archivaloptimism-sepolia-archivalA087All block heights

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