> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://next.developer.frame.io/camera-to-cloud/api-reference/device-asset-create/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://next.developer.frame.io/_mcp/server.

# Create C2C asset

POST https://api.frame.io/v2/devices/assets
Content-Type: application/json

Asset upload initiation specifically for C2C devices and applications.

Note: This endpoint used to be `/v2/assets`, and while that endpoint will continue to function as normal, we suggest you use this one instead.

Reference: https://next.developer.frame.io/camera-to-cloud/api-reference/device-asset-create

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Request

### Headers

- `x-client-version` (string, optional, default: 0.0.0) — Firmware or software version of a C2C integration. Will be used to determine the correct Device Model configuration for the device when multiple are available. Must be a valid semantic version. For more on semantic versions, see here: https://semver.org/

### Body (application/json)

This endpoint expects an object.

- `name` (string, optional, default: ) — The name the asset should have in Frame.io. This value does not have to match the name of the file on disk; it can be whatever you want it to be in Frame.io. Required if `is_realtime_upload` is `false`. If `is_realtime_upload` is `true`, must containa valid extension in the form of `".[ext]"`, unless `extension` is provided, in which case this field may be `null` or omitted.
- `extension` (string, optional) — Required when `is_realtime_upload` is `true`, when `name` is not known at time of asset creation. If `name` is provided, must match extension of that value. Ignored when `is_realtime_upload` is `false`. When supplied, asset will be creted with `name` value of `"[new file].extension"`.
- `filetype` (string, optional) — MIME type like `video/quicktime`. Many languages have built in utilities for detecting file mimetype (see Go and Python for examples). Required if `is_realtime_upload` is `true`.
- `auto_version_id` (string, optional) — The asset you'd like this to be the next version of
- `is_realtime_upload` (boolean, optional, default: false) — If `true`, File data for this asset is to be uploaded through the Real-time Uploads API. If `false`, File data for this asset will be uploaded through the default API. Must be `false` if `filetype` is not `file`.
- `filesize` (V2DevicesAssetsPostRequestBodyContentApplicationJsonSchemaFilesize, optional)
- `channel` (V2DevicesAssetsPostRequestBodyContentApplicationJsonSchemaChannel, optional)
- `offset` (V2DevicesAssetsPostRequestBodyContentApplicationJsonSchemaOffset, optional)
- `parts` (V2DevicesAssetsPostRequestBodyContentApplicationJsonSchemaParts, optional)

## Response

### 200

Asset create success response. When `is_realtime_asset` was set to `true` in the request, a simplified payload will be returned.

- `Devices_deviceAssetCreate_Response_200`

## Errors

### 400 Bad Request Error

Bad Request

- `code` (integer, optional)
- `errors` (list of HttpErrorErrorsItems, optional)
- `message` (string, optional)

### 401 Unauthorized Error

Unauthorized response

- `code` (integer, optional)
- `errors` (list of HttpErrorErrorsItems, optional)
- `message` (string, optional)

### 404 Not Found Error

Not Found response

- `code` (integer, optional)
- `errors` (list of HttpErrorErrorsItems, optional)
- `message` (string, optional)

### 409 Conflict Error

Conflict

- `code` (enum, required)
  - Allowed values: `409`
- `errors` (list of V2DevicesAssetsPostResponsesContentApplicationJsonSchemaErrorsItems, required)
- `message` (enum, required)
  - Allowed values: `Channel Paused`, `invalid_client`, `slow_down`

### 429 Too Many Requests Error

Standard frame.io API error response.

- `code` (integer, optional)
- `errors` (list of HttpErrorErrorsItems, optional)
- `message` (string, optional)

## Types

### V2DevicesAssetsPostRequestBodyContentApplicationJsonSchemaFilesize

### V2DevicesAssetsPostRequestBodyContentApplicationJsonSchemaChannel

### V2DevicesAssetsPostRequestBodyContentApplicationJsonSchemaOffset

### V2DevicesAssetsPostRequestBodyContentApplicationJsonSchemaParts

### RealtimeAssetResponse

- `id` (string, required) — The ID for this asset, can be used in places like `https://app.frame.io/player/:id` to go directly to an asset.
- `name` (string, required) — Represents the name of the asset (filename).

### HttpErrorErrorsItems

- `code` (integer, optional)
- `detail` (string, optional)
- `status` (integer, optional)
- `title` (string, optional)

### V2DevicesAssetsPostResponsesContentApplicationJsonSchemaErrorsItems

- `code` (enum, required)
  - Allowed values: `409`
- `detail` (string, required)
- `status` (enum, required)
  - Allowed values: `409`
- `title` (string, required)

## Examples

### Regular Upload

**Request**

```json
{
  "body": {
    "filesize": 1073741824,
    "filetype": "video/quicktime",
    "is_realtime_upload": false,
    "name": "my-video.mov"
  }
}
```

**SDK Code**

```typescript Regular Upload
const response = await fetch('https://api.frame.io/v2/devices/assets', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_ACCESS_TOKEN',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    name: 'my-video.mov',
    filetype: 'video/quicktime',
    filesize: 1073741824,
    is_realtime_upload: false
  })
});

const asset = await response.json();
console.log(asset);
```

```python Regular Upload
import requests

headers = {
    'Authorization': 'Bearer YOUR_ACCESS_TOKEN',
    'Content-Type': 'application/json'
}

data = {
    'name': 'my-video.mov',
    'filetype': 'video/quicktime',
    'filesize': 1073741824,
    'is_realtime_upload': False
}

response = requests.post(
    'https://api.frame.io/v2/devices/assets',
    headers=headers,
    json=data
)

asset = response.json()
print(asset)
```

```go Regular Upload
package main

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

func main() {

	url := "https://api.frame.io/v2/devices/assets"

	payload := strings.NewReader("{\n  \"body\": {\n    \"filesize\": 1073741824,\n    \"filetype\": \"video/quicktime\",\n    \"is_realtime_upload\": false,\n    \"name\": \"my-video.mov\"\n  }\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

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

}
```

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

url = URI("https://api.frame.io/v2/devices/assets")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"body\": {\n    \"filesize\": 1073741824,\n    \"filetype\": \"video/quicktime\",\n    \"is_realtime_upload\": false,\n    \"name\": \"my-video.mov\"\n  }\n}"

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

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

HttpResponse<String> response = Unirest.post("https://api.frame.io/v2/devices/assets")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"body\": {\n    \"filesize\": 1073741824,\n    \"filetype\": \"video/quicktime\",\n    \"is_realtime_upload\": false,\n    \"name\": \"my-video.mov\"\n  }\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.frame.io/v2/devices/assets', [
  'body' => '{
  "body": {
    "filesize": 1073741824,
    "filetype": "video/quicktime",
    "is_realtime_upload": false,
    "name": "my-video.mov"
  }
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp Regular Upload
using RestSharp;

var client = new RestClient("https://api.frame.io/v2/devices/assets");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"body\": {\n    \"filesize\": 1073741824,\n    \"filetype\": \"video/quicktime\",\n    \"is_realtime_upload\": false,\n    \"name\": \"my-video.mov\"\n  }\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Regular Upload
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = ["body": [
    "filesize": 1073741824,
    "filetype": "video/quicktime",
    "is_realtime_upload": false,
    "name": "my-video.mov"
  ]] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.frame.io/v2/devices/assets")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

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()
```

### Real-time Upload

**Request**

```json
{
  "body": {
    "extension": ".mov",
    "filesize": 1073741824,
    "filetype": "video/quicktime",
    "is_realtime_upload": true,
    "parts": 100
  }
}
```

**SDK Code**

```typescript Real-time Upload
const response = await fetch('https://api.frame.io/v2/devices/assets', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_ACCESS_TOKEN',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    extension: '.mov',
    filetype: 'video/quicktime',
    filesize: 1073741824,
    is_realtime_upload: true,
    parts: 100
  })
});

const asset = await response.json();
console.log(asset);
```

```python Real-time Upload
import requests

headers = {
    'Authorization': 'Bearer YOUR_ACCESS_TOKEN',
    'Content-Type': 'application/json'
}

data = {
    'extension': '.mov',
    'filetype': 'video/quicktime',
    'filesize': 1073741824,
    'is_realtime_upload': True,
    'parts': 100
}

response = requests.post(
    'https://api.frame.io/v2/devices/assets',
    headers=headers,
    json=data
)

asset = response.json()
print(asset)
```

```go Real-time Upload
package main

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

func main() {

	url := "https://api.frame.io/v2/devices/assets"

	payload := strings.NewReader("{\n  \"body\": {\n    \"extension\": \".mov\",\n    \"filesize\": 1073741824,\n    \"filetype\": \"video/quicktime\",\n    \"is_realtime_upload\": true,\n    \"parts\": 100\n  }\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

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

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

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

}
```

```ruby Real-time Upload
require 'uri'
require 'net/http'

url = URI("https://api.frame.io/v2/devices/assets")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"body\": {\n    \"extension\": \".mov\",\n    \"filesize\": 1073741824,\n    \"filetype\": \"video/quicktime\",\n    \"is_realtime_upload\": true,\n    \"parts\": 100\n  }\n}"

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

```java Real-time Upload
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.frame.io/v2/devices/assets")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"body\": {\n    \"extension\": \".mov\",\n    \"filesize\": 1073741824,\n    \"filetype\": \"video/quicktime\",\n    \"is_realtime_upload\": true,\n    \"parts\": 100\n  }\n}")
  .asString();
```

```php Real-time Upload
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.frame.io/v2/devices/assets', [
  'body' => '{
  "body": {
    "extension": ".mov",
    "filesize": 1073741824,
    "filetype": "video/quicktime",
    "is_realtime_upload": true,
    "parts": 100
  }
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp Real-time Upload
using RestSharp;

var client = new RestClient("https://api.frame.io/v2/devices/assets");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"body\": {\n    \"extension\": \".mov\",\n    \"filesize\": 1073741824,\n    \"filetype\": \"video/quicktime\",\n    \"is_realtime_upload\": true,\n    \"parts\": 100\n  }\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Real-time Upload
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = ["body": [
    "extension": ".mov",
    "filesize": 1073741824,
    "filetype": "video/quicktime",
    "is_realtime_upload": true,
    "parts": 100
  ]] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://api.frame.io/v2/devices/assets")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

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()
```