> Fetch clean Markdown by appending `.md` to any page URL under https://signalwire.com/docs or requesting it with the HTTP header `Accept: text/markdown`. The root index at https://signalwire.com/docs/llms.txt lists the available documentation indexes.

# Create a Message

POST https://YOUR_SPACE.signalwire.com/api/laml/2010-04-01/Accounts/{AccountSid}/Messages
Content-Type: application/x-www-form-urlencoded

Sends a message through the account and creates a Message resource for tracking its delivery. Use this form-encoded route for SID-based integrations; use SignalWire REST [Send a message](/docs/apis/rest/messages/create-message) for a JSON request.

#### Permissions

The API token used to authenticate must have the following scope(s) enabled to make a successful request: _Messaging_.

[Learn more about API scopes](/docs/platform/your-signalwire-api-space).

Reference: https://signalwire.com/docs/compatibility-api/rest/messages/create-message

## Authentication

- `Authorization` header (basic auth, required) — SignalWire Basic Authentication using Project ID and API Token. The client sends HTTP requests with the Authorization header containing the word Basic followed by a space and a base64-encoded string of project_id:token. The project ID will be used as the username and the API token as the password. Example: ``` Authorization: Basic base64(project_id:token) ```

## Request

### Path parameters

- `AccountSid` (string, required) — The unique identifier of the project that sent or received this message.

### Body (application/x-www-form-urlencoded)

This endpoint expects a CreateMessageRequest.

- `To` (string, required) — The phone number in E.164 format that will receive the message.
- `From` (string, optional) — The phone number in E.164 format that will send the message. Either `From` or `MessagingServiceSid` must be provided.
- `Body` (string, optional) — The text of the message. Either `Body` or `MediaUrl` must be provided.
- `MediaUrl` (CreateMessageRequestMediaUrl, optional) — URL(s) of media you wish to attach and send with the message. Can be specified multiple times for up to 8 media items.
- `SendAsMms` (boolean, optional) — When set to true, forces the message to be sent as an MMS.
- `ApplicationSid` (string, optional) — The SID of a SignalWire cXML Application used to configure the message's status callback.
- `MaxPrice` (string, optional) — The maximum price in USD acceptable for the message to be sent. Format: decimal with up to 4 decimal places.
- `StatusCallback` (string, optional) — A URL endpoint to receive callbacks each time the status of the message changes. See the [SMS status callback](/docs/compatibility-api/rest/messages/webhooks/sms-status-callback) webhook for the payload your URL will receive.
- `ValidityPeriod` (integer, optional, default: 14400) — The number of seconds a message will allow being queued before canceling. Must be between 1 and 172800 (48 hours). Default is 14400 (4 hours).
- `MessagingServiceSid` (string, optional) — The ID of a number group to use when sending the message. Either `From` or `MessagingServiceSid` must be provided.

## Response

### 201

Response returned when a message is created.

- `account_sid` (string, required) — The unique identifier of the project that sent or received this message.
- `api_version` (string, required) — The version number of the SignalWire cXML REST API used to handle this message.
- `body` (string, required, nullable) — The text of the message. Up to 1600 characters long. May be null if filtered for spam.
- `num_segments` (integer, required) — The number of segments that make up the entire message.
- `num_media` (integer, required) — The number of media files that were included with the message.
- `date_created` (string, required) — The date and time the message was created in RFC 2822 format.
- `date_sent` (string, required, nullable) — The date and time the message was sent in RFC 2822 format, or null if not yet sent.
- `date_updated` (string, required) — The date and time the message was last updated in RFC 2822 format.
- `direction` (enum, required) — The direction of the message.
  - Allowed values: `inbound`, `outbound-api`, `outbound-call`, `outbound-reply`
- `error_code` (string, required, nullable) — If an error has occurred on the message, the error code will give you a specific code, or null if no error.
- `error_message` (string, required, nullable) — A human readable description of the error that occurred, or null if no error.
- `from` (string, required) — The phone number in E.164 format that sent the message.
- `price` (float, required, nullable) — The cost of the individual message billed to your project, or null if not yet calculated.
- `price_unit` (string, required) — The currency in which `price` is charged as.
- `sid` (string, required) — A unique ID that identifies this specific message.
- `status` (enum, required) — Current status of the message.
  - Allowed values: `queued`, `initiated`, `sent`, `failed`, `delivered`, `undelivered`, `received`
- `to` (string, required) — The phone number in E.164 format that received the message.
- `messaging_service_sid` (string, required, nullable) — If a number group was used when sending an outbound message, the number group's ID will be present, or null otherwise.
- `uri` (string, required) — The URI of this particular message.
- `subresource_uris` (MessageSubresourceUris, required) — The URIs for any subresources associated with this message.

## Errors

### 400 Bad Request Error

The request was invalid or cannot be processed. Check the error details for more information.

- `code` (integer, required) — Error code.
- `message` (string, required) — Error message.
- `more_info` (string, required) — URL for more information about the error.
- `status` (integer, required) — HTTP status code.

### 401 Unauthorized Error

Authentication failed. Please verify your credentials and try again.

- `code` (integer, required) — Error code.
- `message` (string, required) — Error message.
- `more_info` (string, required) — URL for more information about the error.
- `status` (integer, required) — HTTP status code.

### 422 Unprocessable Entity Error

The request could not be processed due to validation errors. Check the error details for more information.

- `code` (integer, required) — Error code.
- `message` (string, required) — Error message.
- `more_info` (string, required) — URL for more information about the error.
- `status` (integer, required) — HTTP status code.

## Types

### CreateMessageRequestMediaUrl

URL(s) of media you wish to attach and send with the message. Can be specified multiple times for up to 8 media items.

### MessageSubresourceUris

Message subresource URIs.

- `media` (string, required) — The URI for media.

## Examples

**Request**

```json
{
  "To": "+15557654321"
}
```

**Response**

```json
{
  "account_sid": "ea108133-d6b3-407c-9536-9fad8a929a6a",
  "api_version": "2010-04-01",
  "body": "Hello World!",
  "num_segments": 1,
  "num_media": 1,
  "date_created": "Mon, 13 Aug 2018 21:38:46 +0000",
  "date_sent": "Mon, 13 Aug 2018 21:38:46 +0000",
  "date_updated": "Mon, 13 Aug 2018 21:38:46 +0000",
  "direction": "inbound",
  "error_code": "30001",
  "error_message": "Queue overflow",
  "from": "+15551234567",
  "price": 0.005,
  "price_unit": "USD",
  "sid": "0a059168-ead0-41af-9d1f-343dae832527",
  "status": "queued",
  "to": "+15557654321",
  "messaging_service_sid": "b3877c40-da60-4998-90ad-b792e98472ms",
  "uri": "/api/laml/2010-04-01/Accounts/ea108133-d6b3-407c-9536-9fad8a929a6a/Messages/0a059168-ead0-41af-9d1f-343dae832527.json",
  "subresource_uris": {
    "media": "/api/laml/2010-04-01/Accounts/ea108133-d6b3-407c-9536-9fad8a929a6a/Messages/0a059168-ead0-41af-9d1f-343dae832527/Media.json"
  }
}
```

**SDK Code**

```python
import requests

url = "https://your_space.signalwire.com/api/laml/2010-04-01/Accounts/AccountSid/Messages"

payload = ""
headers = {
    "Content-Type": "application/x-www-form-urlencoded"
}

response = requests.post(url, data=payload, headers=headers, auth=("<project_id>", "<api_token>"))

print(response.json())
```

```javascript
const url = 'https://your_space.signalwire.com/api/laml/2010-04-01/Accounts/AccountSid/Messages';
const credentials = btoa("<project_id>:<api_token>");

const options = {
  method: 'POST',
  headers: {
    Authorization: `Basic ${credentials}`,
    'Content-Type': 'application/x-www-form-urlencoded'
  },
  body: new URLSearchParams('')
};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://your_space.signalwire.com/api/laml/2010-04-01/Accounts/AccountSid/Messages"

	req, _ := http.NewRequest("POST", url, nil)

	req.SetBasicAuth("<project_id>", "<api_token>")
	req.Header.Add("Content-Type", "application/x-www-form-urlencoded")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://your_space.signalwire.com/api/laml/2010-04-01/Accounts/AccountSid/Messages")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request.basic_auth("<project_id>", "<api_token>")
request["Content-Type"] = 'application/x-www-form-urlencoded'

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://your_space.signalwire.com/api/laml/2010-04-01/Accounts/AccountSid/Messages")
  .basicAuth("<project_id>", "<api_token>")
  .header("Content-Type", "application/x-www-form-urlencoded")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://your_space.signalwire.com/api/laml/2010-04-01/Accounts/AccountSid/Messages', [
  'form_params' => null,
  'headers' => [
    'Content-Type' => 'application/x-www-form-urlencoded',
  ],
    'auth' => ['<project_id>', '<api_token>'],
]);

echo $response->getBody();
```

```csharp
using RestSharp;
using RestSharp.Authenticators;

var client = new RestClient("https://your_space.signalwire.com/api/laml/2010-04-01/Accounts/AccountSid/Messages");
client.Authenticator = new HttpBasicAuthenticator("<project_id>", "<api_token>");
var request = new RestRequest(Method.POST);

request.AddHeader("Content-Type", "application/x-www-form-urlencoded");
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let credentials = Data("<project_id>:<api_token>".utf8).base64EncodedString()

let headers = [
  "Authorization": "Basic \(credentials)",
  "Content-Type": "application/x-www-form-urlencoded"
]

let request = NSMutableURLRequest(url: NSURL(string: "https://your_space.signalwire.com/api/laml/2010-04-01/Accounts/AccountSid/Messages")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```