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

# Create a demo sandbox key

POST https://api.loreos.app/v1/demo/sandbox-key
Content-Type: application/json

Issue a short-lived sandbox API key for no-key docs dogfood.

The route creates an isolated sandbox tenant/app/key with an app hard cap
so metered work is blocked locally before provider spend. The raw key is
returned once. Operators disable public issuance with DB Runtime Control
``demo.sandbox=disabled``; ``LOREOS_DEMO_SANDBOX_ENABLED`` is fallback only.

Reference: https://docs.loreos.app/api-reference/sandbox-and-reference/demo-sandbox-key

## Servers

- `https://api.loreos.app` (Production, default)
- `http://127.0.0.1:8000` (Local development)

## Request

### Body (application/json)

This endpoint expects a V1DemoSandboxKeyRequest.

- `fingerprint` (string, optional, nullable)
- `turnstile_token` (string, optional, nullable)

## Response

### 200

Successful Response

- `schema_version` ("v0", required) — LoreOS success-envelope version.
- `data` (DemoSandboxKeyData, required)
- `next_actions` (list of V1NextAction, required) — Concrete follow-up API actions; empty when no action is required.

## Errors

### 422 Unprocessable Entity Error

Validation Error

- `detail` (list of ValidationError, optional)

## Types

### DemoSandboxKeyData

- `api_key` (string, required) — Returned once. Store only in a server-side secret store.
- `prefix` (string, required)
- `key_kind` ("demo", required)
- `app_id` (string, required)
- `environment` ("sandbox", required)
- `expires_at` (datetime, required)
- `limits` (DemoSandboxLimits, required)
- `note` (string, required)

### V1NextAction

- `command` (string, required) — The next API command an agent can execute.
- `description` (string, required) — Why or when to execute the command.

### ValidationError

- `loc` (list of ValidationErrorLocItems, required)
- `msg` (string, required)
- `type` (string, required)
- `input` (any, optional)
- `ctx` (ValidationErrorCtx, optional)

### DemoSandboxLimits

- `ttl_seconds` (integer, required)
- `credit_limit` (double, required)
- `characters` (integer, required)
- `sessions` (integer, required)
- `messages` (integer, required)
- `max_input_chars` (integer, required)
- `image_generation` (boolean, required)
- `telegram` (boolean, required)
- `webhooks` (boolean, required)

### ValidationErrorLocItems

### ValidationErrorCtx

## Examples

**Request**

```json
{}
```

**Response**

```json
{
  "schema_version": "v0",
  "data": {
    "api_key": "ck_demo_returned_once_secret",
    "prefix": "ck_demo_",
    "key_kind": "demo",
    "app_id": "00000000-0000-0000-0000-000000000000",
    "environment": "sandbox",
    "expires_at": "2026-06-19T09:03:46Z",
    "limits": {
      "ttl_seconds": 3600,
      "credit_limit": 1,
      "characters": 1,
      "sessions": 3,
      "messages": 20,
      "max_input_chars": 4000,
      "image_generation": false,
      "telegram": false,
      "webhooks": false
    },
    "note": "demo keys are for local testing only; use a persistent developer key for production"
  },
  "next_actions": [
    {
      "command": "POST /v1/characters",
      "description": "Create one sandbox character"
    },
    {
      "command": "GET /v1/rates",
      "description": "Inspect metering and hard-cap behavior"
    }
  ]
}
```

**SDK Code**

```python
import requests

url = "https://api.loreos.app/v1/demo/sandbox-key"

payload = {}
headers = {"Content-Type": "application/json"}

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

print(response.json())
```

```javascript
const url = 'https://api.loreos.app/v1/demo/sandbox-key';
const options = {method: 'POST', headers: {'Content-Type': 'application/json'}, body: '{}'};

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.loreos.app/v1/demo/sandbox-key"

	payload := strings.NewReader("{}")

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

	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.loreos.app/v1/demo/sandbox-key")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = 'application/json'
request.body = "{}"

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.loreos.app/v1/demo/sandbox-key")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.loreos.app/v1/demo/sandbox-key', [
  'body' => '{}',
  'headers' => [
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.loreos.app/v1/demo/sandbox-key");
var request = new RestRequest(Method.POST);
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["Content-Type": "application/json"]
let parameters = [] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.loreos.app/v1/demo/sandbox-key")! 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()
```