# Broadcast Transaction

## Parameters

- **network**: string (required)
  - Allowed values: `mainnet`, `preprod`

- **signed_transaction**: string (required)
  - The unsigned transaction, serialized with the signature.

## Responses

### 201
#### Broadcast Transaction

**object**

- **data**: object
  - **tx_hash**: string - Transaction hash

### Error Codes

- **400**: Bad Request
- **422**: Unprocessable Content

## Example Request

```shell
curl --request POST \
     --url https://api.figment.io/cardano/broadcast \
     --header 'accept: application/json' \
     --header 'content-type: application/json' \
     --header 'x-api-key: your-api-key-here' \
     --data '{"network": "mainnet"}'
```

## Example Response

```json
{
  "data": {
    "tx_hash": "3cbf058b236a1814f558f4c98416efa7920a53fb0bba40f3706812af188311a7"
  }
}
```