An order is created using the Create Order API. Once the order is created, redirect the buyer to a ForgingBlock payment page, where they can see the payable amount, choose a supported cryptocurrency, and complete the payment.

ForgingBlock provides two payment URLs:

`invoice_url`

Single-use payment invoice
Fixed 20-minute lifetime
Intended for direct checkout flows
Automatically expires if unpaid

`checkout_url`

Reusable payment link
Safe to share via messengers, email, or QR
Each visit generates a new invoice using the same order data
Ideal for asynchronous or off-site payments

Action: Redirect the buyer to the URL or share it with them to complete payment.