Your public Optimism Gateway

Optimism is a Layer 2 protocol aiming to provide a scaling solution for Ethereum. The protocol strives to make transactions more affordable and seamless by processing them in batches using optimistic rollups. This way the Optimism protocol makes use of the Ethereum consensus while, at the same time, offering developers and users, significantly reduced gas fees and faster transactions.

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Optimism Mainnet

Public RPC Endpoint

Public WSS Endpoint





Returns the number of the most recent block

eth_blockNumber response

Returns the number of the most recent block


An integer value of the current block number the client is on


curl -X POST \
-H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","id":0,"method":"eth_blockNumber"}'
Average API calls/sec328.56
Average API calls/day28,387,312
API calls last 24h32,786,669

No Data

No API calls made yet

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