> ## Documentation Index
> Fetch the complete documentation index at: https://docs.thornode.io/llms.txt
> Use this file to discover all available pages before exploring further.

# sendBundle

> Submit an atomic Jito bundle through Hofund, and query bundle statuses and tip accounts.

A bundle lands as one unit or not at all. Hofund forwards it to Jito atomically and never splits or retries it through another rail.

Two surfaces accept `sendBundle` and they differ in size and config:

| Route            | Transactions | `params[1]`                                                                      |
| ---------------- | ------------ | -------------------------------------------------------------------------------- |
| `/hofund`        | 1–4          | Exactly `{ "encoding": "base64", "mevProtect": true, "revertProtection": true }` |
| `/hofund-bundle` | 1–5          | Exactly `{ "encoding": "base64" }`                                               |

One member with an application instruction (not a tip-only transfer) must pay both the Thor and the Jito tip floors. A tip-only member does not qualify.

## Parameters

<ParamField body="params[0]" type="string[]" required>
  Fully signed transactions in execution order, canonical padded base64, at most 1232 bytes each, no duplicates.
</ParamField>

<ParamField body="params[1]" type="object" required>
  The exact config object for the route, as in the table above. Any other key or value is rejected.
</ParamField>

## Response

<ResponseField name="result" type="string | string[]">
  On `/hofund-bundle`: the Jito bundle id. On `/hofund`: the member signatures in order.
</ResponseField>

Headers: `X-Hofund-Submission-ID` and `X-Bundle-ID`.

## Errors

| Code     | Message                                                                                                                                    |
| -------- | ------------------------------------------------------------------------------------------------------------------------------------------ |
| `-32602` | `sendBundle transaction count exceeds 4` (`/hofund`)                                                                                       |
| `-32602` | `one bundle member must pay at least N Thor and M Jito tip lamports and include an application instruction with a writable static account` |
| `-32010` | Jito capacity exhausted; `Retry-After: 1`                                                                                                  |

## Other `/hofund-bundle` methods

| Method                      | `params`                                      | Result                                                       |
| --------------------------- | --------------------------------------------- | ------------------------------------------------------------ |
| `getBundleStatuses`         | `[["<bundle-id>", …]]`, 1–5 unique 64-hex ids | Jito's response, unchanged                                   |
| `getInflightBundleStatuses` | same                                          | Jito's response, unchanged                                   |
| `getTipAccounts`            | `[]`                                          | The Jito tip accounts Hofund uses                            |
| `getThorTipConfig`          | `[]`                                          | See [Status and tips](/api-reference/hofund/status-and-tips) |

<RequestExample>
  ```bash /hofund-bundle theme={null}
  curl --fail-with-body "$HOFUND_BUNDLE_URL" \
    --header 'content-type: application/json' \
    --data '{
      "jsonrpc": "2.0",
      "id": 1,
      "method": "sendBundle",
      "params": [
        ["<BASE64_SIGNED_TRANSACTION_1>", "<BASE64_SIGNED_TRANSACTION_2>"],
        { "encoding": "base64" }
      ]
    }'
  ```

  ```bash /hofund theme={null}
  curl --fail-with-body "$HOFUND_URL" \
    --header 'content-type: application/json' \
    --data '{
      "jsonrpc": "2.0",
      "id": 1,
      "method": "sendBundle",
      "params": [
        ["<BASE64_SIGNED_TRANSACTION_1>", "<BASE64_SIGNED_TRANSACTION_2>"],
        { "encoding": "base64", "mevProtect": true, "revertProtection": true }
      ]
    }'
  ```
</RequestExample>

<ResponseExample>
  ```json /hofund-bundle theme={null}
  { "jsonrpc": "2.0", "id": 1, "result": "<BUNDLE_ID>" }
  ```

  ```json /hofund theme={null}
  { "jsonrpc": "2.0", "id": 1, "result": ["<SIGNATURE_1>", "<SIGNATURE_2>"] }
  ```
</ResponseExample>