curl -X POST "https://api.liquid.tf/api/dev/create_listing" \
  -H "Content-Type: application/json" \
  -H "X-API-Key: YOUR_SITE_API_KEY" \
  -d '{
    "items": [{
      "asset_id": "12321312414",
      "price": 16500,
      "promoted": 0,
      "game": "440",
      "user_note": "Great condition! Fast delivery"
    }]
  }'

const response = await fetch('https://api.liquid.tf/api/dev/create_listing', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'X-API-Key': 'YOUR_SITE_API_KEY'
  },
  body: JSON.stringify({
    items: [{
      asset_id: '12321312414',
      price: 16500,
      promoted: 0,
      game: '440',
      user_note: 'Great condition!'
    }]
  })
});

const data = await response.json();

import requests

response = requests.post(
    'https://api.liquid.tf/api/dev/create_listing',
    headers={'X-API-Key': 'YOUR_SITE_API_KEY'},
    json={
        'items': [{
            'asset_id': '12321312414',
            'price': 16500,
            'promoted': 0,
            'game': '440',
            'user_note': 'Great condition!'
        }]
    }
)

data = response.json()

{
  "success": true,
  "created_listings": [
    {
      "listing_id": "66f2b3f4c4a1f7b9a8a4f123",
      "sku": "5021;6",
      "asset_id": "12321312414"
    }
  ]
}