​
Line Item

Line items are used to represent items to the user when they are making a payment. 
{
  "title": "Bored Ape NFT #1234",
  "description": "A super rare NFT",
  "image_url": "https://example.com/ape.jpg",
  "quantity": 1
}

​
Order Price

Order prices are used to represent the total price of an order denominated in a specific currency. The following example represents an order price of 1 USDC. 
{
  "currency": "USDC",
  "amount": 1000000000000000000,
  "decimals": 18
}