# Send transaction

Sends new transaction.

This method will use `10` [Compute Units](/v1/about/billing.md).

***

## **Reference:** [**Here**](https://github.com/trezor/blockbook/blob/master/docs/api.md#send-transaction)

```bash
POST /api/v2/sendtx/ (hex tx data in request body)  NB: the '/' symbol at the end is mandatory.
```

Note: Only the POST request of sendtx is currently supported by Validation Cloud, not the GET version.

## **Parameters**

**`hex tx data`** - string, required in request body.

## Returns

Successful response:

```bash
{
  "result": "7c3be24063f268aaa1ed81b64776798f56088757641a34fb156c4f51ed2e9d25"
}
```

Or in case of error:

```bash
{
  "error": {
    "message": "error message"
  }
}
```

{% tabs %}
{% tab title="mainnet" %}

```bash
curl https://mainnet.bitcoin.validationcloud.io/v1/<YOUR_API_KEY_HERE>/api/v2/sendtx/ \
 -X POST \
 -H "Content-Type: application/json"
```

{% endtab %}

{% tab title="testnet" %}

```bash
curl https://testnet.bitcoin.validationcloud.io/v1/<YOUR_API_KEY_HERE>/api/v2/sendtx/ \
 -X POST \
 -H "Content-Type: application/json"
```

{% endtab %}
{% endtabs %}


---

# Agent Instructions: 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:

```
GET https://docs.validationcloud.io/v1/bitcoin/blockbook-indexer-rest-api/send-transaction.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

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.