PaysumFAQ
Short answers to the questions sellers and developers ask most.
Only for the API. Everything else - products, payments, delivery and design - is managed from the dashboard. When you do use the API, every request needs a key with the right permission.
Yes. Creating checkout sessions and changing customer balances are limited to 100 requests per hour per key, and withdrawals to 50. See Rate limits.
Yes - create a checkout session with product_ids. Stock, variants and delivery work
exactly as they do for regular store orders.
Subscribe with webhook_url and handle checkout.session.completed, or
poll Retrieve session. Don’t rely on the
customer reaching your success page.
BTC, LTC and ETH, from the matching store wallet.