CreatePaySessionRequest

card_token pays with a saved card: the form shows its last four digits instead of the card fields.

amount
Type:
required
Properties: 2
description
Type: string
max length:
255
required

Shown to the payer on the form.
expires_at
Type: stringFormat: date-time
required

When the form stops accepting the payment. In the future, with a time zone offset.
merchant_reference
Type:
min length:
1
max length:
100
required

Your id for the transaction, unique per merchant across payins, refunds, payouts and pay sessions. It is also the idempotency key of the create — the same reference with the same body returns the existing transaction, with a different body 409 merchant_reference_conflict. Never expires.
payer
Type: object
required
Properties: 5
card_token
Type: string

card.token of an earlier completed payin of this shop.
return_urls
Type:

Where the payment page sends the payer after the final status, https:// only. Coming back is not a result — wait for the final status.

Properties: 2
save_card
Type: boolean

Return card.token for repeat payins when the payin is completed. Works if the shop allows saving cards.