1 of 1

Bundle API

Our Anti-MEV RPC on BSC supports the method eth_sendBundleto send multiple private transactions in a bundle.

RPC Endpoint: https://bsc.rpc.blocksec.com

eth_sendBundle

POST /

Send private transactions in a bundle

Request Parameters

Parameter

Mandatory

Format

Example

Description

txs

Mandatory

array[hex]

["0x…35", "0x…4e"]

List of signed raw transactions.

maxBlockNumber

Optional

uint64

47793530

Maximum block number for the bundle's validity. Default is current block number + 100.

revertingTxHashes

Optional

array[hash]

["0x…2c", "0x…3d"]

List of transaction hashes allowed for revert.

Request Example

curl https://bsc.rpc.blocksec.com \
    -X POST \
    -H "Content-Type: application/json" \
    -d '{
         "jsonrpc": "2.0",
         "id": "1", 
         "method": "eth_sendBundle", 
         "params": {
            ...
          }
        }'

One example of the detailed request.

{
  "jsonrpc": "2.0",
  "id": "1",
  "method": "eth_sendBundle",
  "params": [
    {
      "txs":["0x…3e", "0x…1f"],    // List of signed raw transactions
      "maxBlockNumber":47793594,   // The maximum block number for the bundle to be valid, with the default set to the current block number + 100
      "revertingTxHashes":[
        "07c956724f0fd00a9fb1ea71e111d87dc8dae099c914b8b4859f1e6e667d4ea8"
        ],                         // List of transaction hashes allowed for revert
    }
  ]
}

Response Example

{
 "jsonrpc":"2.0",
 "id":"1",
 "result":"0x1e5e……fbd1"  //bundle hash
}

{
  "jsonrpc":"2.0",
  "id":"1",
  "error":{
    "code":-38000,
    "message":"the maxBlockNumber should not be smaller than currentBlockNum"
    }
}