post
https://demo.api.loopcrypto.xyz/api/v1/checkout-session
A Checkout Session represents your customer’s session as they pay for one-time purchases or subscriptions through a Checkout Page or API Agreement call..
Each Checkout Session is unique and can only be completed once.
When a checkout is completed, the Checkout Session will reference the agreement and no longer be active or able to be used.
A session must either contain elements, externalSubscriptionId or an externalInvoiceId. These inputs are mutually exclusive. This is the only required field.
Required API permissions: CreateCheckoutSessions