# eth\_sendBundle

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "eth_sendBundle",
  "params": [
    {
      txs,                  // Array[String], A list of signed transactions to execute in an atomic bundle
      blockNumber,          // (Optional) String, a hex-encoded block number for which this bundle is valid. Default, current block number
      minTimestamp,         // (Optional) Number, the minimum timestamp for which this bundle is valid, in seconds since the unix epoch
      maxTimestamp,         // (Optional) Number, the maximum timestamp for which this bundle is valid, in seconds since the unix epoch
      revertingTxHashes,    // (Optional) Array[String], A list of tx hashes that are allowed to revert
      droppingTxHashes,     // (Optional) Array[String], A list of tx hashes that are allowed to be discarded, but may not revert
      replacementUuid,      // (Optional) String, UUID that can be used to cancel/replace this bundle
      replacementSeqNumber, // (Optional) Number, monotonically increasing sequence for bundles sharing the same replacementUuid. Later bundles must have a higher sequence or they are dropped. If 0 or omitted, ordering falls back to builder receive time
      refundPercent,        // (Optional) Number, The percent(from 0 to 99) of full bundle ETH reward that should be passed back to the user(refundRecipient) at the end of the bundle.
      refundRecipient,      // (Optional) String, Address of the wallet that will receive the ETH reward refund from this bundle, default value = EOA of the first transaction inside the bundle.
      refundTxHashes        // (Optional) Array[String], Maximum length of 1 tx hash from which the refund is calculated. Defaults to final transaction in the bundle if list is not specified/empty.
    }
  ]
}
```

#### Sponsored Bundles

Quasar Builder now supports sponsored bundles. If you send a bundle with a transaction that fails with `LackOfFundForGasLimit`, we will send the ETH required to cover the gas fees.

The bundle must increase the builder balance in order to cover the cost of sponsoring the bundle.

### Example:

```json
{
  "jsonrpc": "2.0",
  "id": 123,
  "method": "eth_sendBundle",
  "params": [
    {
      "txs": ["0x123abc...", "0x456def..."],
      "blockNumber": "0xb63dcd",
      "minTimestamp": 0,
      "maxTimestamp": 1615920932
    }
  ]
}
```

### Example Response:

```json
{
  "jsonrpc": "2.0",
  "id": "123",
  "result": {
    {
    "bundleHash": "0x1234567890abcdef..."
    }
  }
}
```