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Last updated on January 1, 1970

1 min read

Method trace_replayBlockTransactions Optimism (OP)
connect with WS protocol



Provides transaction processing tracing per block.


blockNumber - string

Integer representing a block number or one of the string tags latest, earliest, or pending, as described in Block Parameter.

options - list of string

list of tracing options; tracing options are trace, vmTrace, and stateDiff. Specify any combination of the three options including none of them.


wscat -c wss:// 
# wait for connection and send the request body 
{"jsonrpc": "2.0",
"method": "trace_replayBlockTransactions",
"params": ["latest", ["trace", "vmTrace", "vmTrace"]],
"id": ""}


    "error": {
        "code": -32601,
        "message": "the method trace_replayBlockTransactions does not exist/is not available"
    "id": "",
    "jsonrpc": "2.0"
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