> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/dsx-air/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/dsx-air/_mcp/server.

# Create a marketplace demo

POST https://api.dsx-air.nvidia.com/api/v3/marketplace/demos/
Content-Type: application/json

Create a blank marketplace demo. Provided `simulation` must be in the `INACTIVE` state. Provided `checkpoint` must be in the `COMPLETE` state and must belong to the provided `simulation`. If not provided, the most recent complete checkpoint will be used. This simulation will be cloned into a new simulation set to `DEMO` state.

**Required scope:** `air:marketplace_demo_write` (roles: `air_demo_manager`, `air_org_admin`, `air_user`)

Reference: https://docs.nvidia.com/dsx-air/api-reference/marketplace/api-v-3-marketplace-demos-create

## Authentication

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

## Request

### Body (application/json)

This endpoint expects an object.

- `name` (string, required) — The name of the marketplace demo.
- `tags` (list of string, required) — At least one tag name for the demo is required. Each is 2-32 characters; letters, numbers, spaces, hyphens (-), and underscores (_) only; must start and end with a letter or number. Stored lowercased.
- `simulation` (string, required) — Simulation to be used to provision the marketplace demo.
- `description` (string, optional, nullable) — Description of the marketplace demo.
- `documentation` (string, optional, nullable) — The raw markdown documentation for the marketplace demo. Pass an empty string to blank the documentation. For backwards compatibility null is accepted and treated as an empty string.
- `repo` (string, optional, nullable) — The code repository of the marketplace demo.
- `publisher` (string, optional) — The name of the company or organization the marketplace demo is published under (e.g. NVIDIA, Google). Required before a marketplace demo can be published.
- `icon` (string, optional, nullable) — Icon for the marketplace demo as a base64-encoded image data URL (e.g. `data:image/png;base64,...`), up to 65536 bytes when decoded. Must be one of the following MIME types: `image/gif`, `image/jpeg`, `image/png`, `image/svg+xml`, `image/webp`, `image/x-icon`. Pass `null` to remove the icon.
- `checkpoint` (string, optional) — A `COMPLETE` checkpoint to clone from. Provided checkpoint must belong to the simulation. If not specified, latest `COMPLETE` checkpoint will be used.

## Response

### 201

- `id` (string, required)
- `created` (datetime, required)
- `modified` (datetime, required)
- `name` (string, required) — The name of the marketplace demo.
- `creator` (string, required) — E-mail of the creator of the marketplace demo.
- `documentation` (string, required, nullable) — The raw markdown documentation for the marketplace demo.
- `tags` (list of string, required) — Names of the tags of the marketplace demo.
- `published` (boolean, required) — Whether the marketplace demo is published.
- `publicly_published` (boolean, required) — Whether the marketplace demo is visible to the entire catalog (true only when the demo is in the published catalog AND its publish access record is set to public).
- `publish_access_record_id` (string, required, nullable) — The id of the marketplace demo publish access record. Returned only to the owning organization, Air admins, and SREs; null otherwise.
- `provision_count` (integer, required) — Number of times a clone has been provisioned from this marketplace demo (counted when the provision request creates the clone; not decremented if that clone later fails to boot).
- `demo` (string, required) — Demo simulation to be used as a base for cloned simulations.
- `demo_simulation_state` (string, required) — The state of the simulation instance associated with this demo which acts as the template for all provisioned simulations from this demo. If the demo was successfully created, this value will be `DEMO` or `CLONING`.
- `expected_resource_usage` (object, required) — The expected resource usage for the marketplace demo.
  - `cpu` (integer, required) — Number of vCPUs required.
  - `memory` (double, required) — Amount of memory required (MiB).
  - `storage` (double, required) — Amount of storage required (GB).
  - `compute_hours` (double, required) — Compute-hours rate (in USD) applied for each hour the simulation runs.
- `description` (string, optional, nullable) — Description of the marketplace demo.
- `repo` (string, optional, nullable) — The code repository of the marketplace demo.
- `publisher` (string, optional) — The name of the company or organization the marketplace demo is published under (e.g. NVIDIA, Google). Required before a marketplace demo can be published.
- `featured` (boolean, optional) — Whether the marketplace demo is featured. This can be used to help order a group of marketplace demos before others.
- `order` (integer, optional, nullable) — A field used to help order specific marketplace demos before or after other specific marketplace demos.
- `icon` (string, optional, nullable) — Public URL of the marketplace demo icon stored in the publicly-accessible bucket. Legacy rows may still contain raw icon data in data URL format until the icon is next updated.

## Errors

### 400 Bad Request Error

- `detail` (string, required) — Description of an error.
- `request_id` (string, required, nullable) — ID assigned to the request which encountered the error. Should be provided when opening a support case.
- `type` (enum, required) — Specific type of a 400 error. * `PROTECTED` - Instance may not be deleted as it is being referenced by other instances. * `VALIDATION` - Validation errors encountered during payload processing.
  - Allowed values: `PROTECTED`, `VALIDATION`
- `protected_instances` (list of object, optional) — Instances which bar the current instance from being deleted. Only defined when `type` is set to `PROTECTED`.
  - `id` (string, required) — ID of the instance.
  - `type` (string, required) — Type of the instance.
- `validation_errors` (map from string to list of object or object or map from string to any or list of object, optional) — Validation errors encountered during payload processing. Only defined when `type` is set to `VALIDATION`.

### 403 Forbidden Error

- `detail` (string, required) — Description of an error.
- `request_id` (string, required, nullable) — ID assigned to the request which encountered the error. Should be provided when opening a support case.

### 500 Internal Server Error

- `request_id` (string, required, nullable) — ID assigned to the request which encountered the error. Should be provided when opening a support case.
- `code` (string, required) — Error code which identifies the error. Should be provided when opening a support case.
- `detail` (string, optional, default: An unexpected error has occurred. Please contact NVIDIA Air support for further assistance.) — Description of an error.

## Examples

**Request**

```json
{
  "name": "string",
  "tags": [
    "string"
  ],
  "simulation": "string"
}
```

**Response**

```json
{
  "id": "string",
  "created": "2024-01-15T09:30:00Z",
  "modified": "2024-01-15T09:30:00Z",
  "name": "string",
  "creator": "string",
  "documentation": "string",
  "tags": [
    "string"
  ],
  "published": true,
  "publicly_published": true,
  "publish_access_record_id": "string",
  "provision_count": 1,
  "demo": "string",
  "demo_simulation_state": "string",
  "expected_resource_usage": {
    "cpu": 1,
    "memory": 1.1,
    "storage": 1.1,
    "compute_hours": 1.1
  },
  "description": "string",
  "repo": "string",
  "publisher": "string",
  "featured": true,
  "order": 1,
  "icon": "string"
}
```

**SDK Code**

```python
import requests

url = "https://api.dsx-air.nvidia.com/api/v3/marketplace/demos/"

payload = {
    "name": "string",
    "tags": ["string"],
    "simulation": "string"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript
const url = 'https://api.dsx-air.nvidia.com/api/v3/marketplace/demos/';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"name":"string","tags":["string"],"simulation":"string"}'
};

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"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.dsx-air.nvidia.com/api/v3/marketplace/demos/"

	payload := strings.NewReader("{\n  \"name\": \"string\",\n  \"tags\": [\n    \"string\"\n  ],\n  \"simulation\": \"string\"\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
require 'uri'
require 'net/http'

url = URI("https://api.dsx-air.nvidia.com/api/v3/marketplace/demos/")

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  \"name\": \"string\",\n  \"tags\": [\n    \"string\"\n  ],\n  \"simulation\": \"string\"\n}"

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://api.dsx-air.nvidia.com/api/v3/marketplace/demos/")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"string\",\n  \"tags\": [\n    \"string\"\n  ],\n  \"simulation\": \"string\"\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.dsx-air.nvidia.com/api/v3/marketplace/demos/', [
  'body' => '{
  "name": "string",
  "tags": [
    "string"
  ],
  "simulation": "string"
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.dsx-air.nvidia.com/api/v3/marketplace/demos/");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"name\": \"string\",\n  \"tags\": [\n    \"string\"\n  ],\n  \"simulation\": \"string\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "name": "string",
  "tags": ["string"],
  "simulation": "string"
] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.dsx-air.nvidia.com/api/v3/marketplace/demos/")! 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()
```