Sources
Flow
1
Preview or fee
POST /v1/payins/preview and/or POST /v1/payins/fee to show the customer what lands on the book.2
Prepare
POST /v1/payins/prepare — may return a redirect URL, payment intent, or next step for the payer.3
Create / complete
POST /v1/payins to finalize when your flow requires it. Track with GET /v1/payins/{id}.