Optimism API Endpoints by use case

Getting Blocks
Reading Transactions
Writing Transactions & EVM Execution
Account Information
Event Logs
Chain Information
Getting Uncles
Gas Estimation
Real-time Events

Available Enhanced APIs

NFT API
Transfers API
Token API
Notify API
Subscription API

Getting Blocks

Retrieves information from a particular block in the blockchain.

Reading Transactions

Retrieves information on the state data for addresses regardless of whether it is a user or a smart contract.

Writing Transactions & EVM Execution

Allows developers to both send ETH from one address to another, write data on-chain, and interact with smart contracts.

Account Information

Returns information regarding an address's stored on-chain data.

Event Logs

Returns logs which are records that denote/provide context on specific events within a smart contract, like a token transfer or a change of ownership for example.

Chain Information

Returns information on the Optimism network and internal settings.

Getting Uncles

Returns information on uncle blocks which are network rejected blocks and replaced by a canonical block instead.

Gas Estimation

Real-time Events

Introduces WebSocket-based requests/responses which leverage a network connection allowing developers to listen for changes continuously without the need for HTTP polling.

Available Enhanced APIs

NFT API

All Networks
getNfts, getNFTMetadata, getContractsForOwner, getOwnersForToken, getOwnersForCollection, isHolderOfCollection, getContractMetadata, getNFTsForCollection getNFTMetadataBatch

Transfers API

Mainnet and Goerli Only
- ERC20 Transfers - ERC1155 Transfers - ERC721 Transfers - External Transfers

Token API

All Networks
- alchemy_getTokenAllowance - alchemy_getTokenBalances - alchemy_getTokenMetadata

Notify API

All Networks
- Mined Transaction - Dropped Transactions

Subscription API

All Networks
- newHeads - logs - alchemy_minedTransactions

Optimism API Endpoints