> For the complete documentation index, see [llms.txt](https://docs.bloxroute.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bloxroute.com/polygon/submit-transactions/private-transactions.md).

# Private Transactions

Use this endpoint to send a private transaction on Polygon Mainnet using bloXroute's BDN. Transactions are protected from front-running and MEV. The endpoint returns the transaction hash as a response.

#### Access & Payment

Access to Polygon Private Txs requires either a prepaid balance.

Top up a prepaid balance via the [bloXroute Portal](https://portal.bloxroute.com). Usage is tracked per transaction and costs are deducted automatically based on volume-based pricing tiers. See pricing here.

| Tier        | Min monthly txs | Max monthly txs | Attempted/non-landed rate | Landed rate |
| ----------- | --------------- | --------------- | ------------------------- | ----------- |
| 0 to 2.5k   | 0               | 2,500           | $0.060                    | $0.240      |
| 2.5k to 10k | 2,500           | 10,000          | $0.030                    | $0.120      |
| 10k to 50k  | 10,000          | 50,000          | $0.025                    | $0.100      |
| 50k to 100k | 50,000          | 100,000         | $0.020                    | $0.080      |
| >100k       | 100,000+        | Custom          | Custom                    | Custom      |

#### Submission Endpoint

* **Method:** `polygon_private_tx`
* **Cloud API Endpoint:** `api.blxrbdn.com`
* **Request type:** `HTTPS, WSS`

### Parameters

<table><thead><tr><th width="279.3333333333333">Parameter</th><th width="217">Description</th><th>Instructions &#x26; Notes</th></tr></thead><tbody><tr><td><code>transaction</code></td><td>Raw transactions bytes without <strong><code>0x</code></strong> prefix.</td><td>[Required]</td></tr><tr><td><code>backrunme_reward_address</code></td><td>Wallet address to receive BackRunMe rewards</td><td>[Optional]</td></tr></tbody></table>

### **Examples**

{% tabs %}
{% tab title="HTTPS POST" %}

```bash
curl -X POST https://api.blxrbdn.com/ \
  -H "Authorization: <YOUR-AUTHORIZATION-HEADER>" \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "polygon_private_tx",
    "params": {
      "transaction": "f86b0184...e0b58219"
    }
  }'
```

{% endtab %}

{% tab title="wscat WS" %}

```bash
wscat -c wss://api.blxrbdn.com/ws
--header 'Authorization: '
-x '{"jsonrpc":"2.0","id":1,"method":"polygon_private_tx","params":{"transaction":"f86b0184...e0b58219"}}'
```

{% endtab %}
{% endtabs %}

#### **Response:**

```json
{
  "jsonrpc": "2.0",
  "id": "1",
  "result": {
    "txHash": "ffd59870844e5...bfa54a69"
  }
}
```


---

# Agent Instructions
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## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.bloxroute.com/polygon/submit-transactions/private-transactions.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.