eth_cancelBundle

{
"jsonrpc": "2.0",
"id": 1,
"method": "eth_cancelBundle",
"params": [
{
replacementUuid, // String, to uniquely identify submission
}
]
}
N.B.: the replacementUuid must have been set when the bundle was submitted.

CURL example

curl -s --data '{"jsonrpc": "2.0","id": "1","method": "eth_cancelBundle", "params": [{"replacementUuid": "abcd1234"}]}' -H "Content-Type: application/json" -X POST https://rpc.titanbuilder.xyz

Response example

{"result":200,"error":null,"id":1}
N.B.: We cannot guarantee that the bundle will be canceled if the cancellation is submitted within 4 seconds of the final relay submission.