# eth\_cancelBundle

```javascript
{
  "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**

```javascript
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**

```javascript
{"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.