Quicknode supports the following Optimism APIs on all endpoints. Using your Optimism endpoint, you can call any of the methods available in these APIs. For a complete list of supported RPC methods, refer to the documentation for each API.

Supported APIs

Ethereum JSON-RPC API

Core Ethereum protocol methods for blockchain interaction, account management, and transaction processing

Debug API

Development and debugging utilities for deep blockchain analysis and transaction inspection

Optimism JSON-RPC API

Optimistic rollup Layer 2 methods for scalable Ethereum transactions, cross-chain messaging, and L1-L2 state synchronization

OP-Node API

Optimism node data retrieval method for querying specific blockchain objects by hash identifier

Trace API

Transaction tracing tools for debugging smart contracts and analyzing internal transaction flows

Flashblocks API

Preconfirmation methods for sub-second transaction confirmations on Base, enabling ultra-fast signals before block finalization

Supported Networks

Quicknode provides access to the following Optimism networks:

Mainnet

Type:Production

Chain ID:

10

HTTP:

WSS:

Archive:Yes

Pruning:None

Sepolia

Type:Testnet

Chain ID:

11155420

HTTP:

WSS:

Archive:Yes

Pruning:None

Network

Type

Chain ID

HTTP

WSS

Archive

Pruning

Mainnet

Production

10

Yes

None

Sepolia

Testnet

11155420

Yes

None

Supported Products

The following Quicknode products are supported on the Optimism blockchain:

Streams

Real-time and historical blockchain data ingestion with exactly-once delivery guarantees and custom filtering.

Webhooks

HTTP endpoint notifications for blockchain events with payload customization and retry mechanisms.