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Chain Resource Directory
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OP Mainnet RPC & resources
Endpoints, websockets, and devtools
L2
L2
Chain ID: 10
Chain ID: 10
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RPC
https://opt-mainnet.g.alchemy.com/v2/
<api-key>
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Websocket
wss://opt-mainnet.g.alchemy.com/v2/
<api-key>
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RPC API
Transaction receipts API
Block Timestamp API
User OP Simulation API
Prices API
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gRPC
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Sepolia
Transaction receipts API
Block Timestamp API
User OP Simulation API
Prices API
Debug API
Trace API
gRPCRequest supportTransaction receipts APIBlock Timestamp APIUser OP Simulation APIPrices APIDebug APITrace APIgRPC