Creem API Integration Skill

Creem is a Merchant of Record (MoR) payment platform. Creem is the legal seller, so it owns tax compliance, payment processing, chargebacks, and refunds.

Non-obvious rules

• Production API: https://api.creem.io
• Test API: https://test-api.creem.io
• Authentication: x-api-key header. The key is a merchant credential: it must never reach a browser, mobile app, or desktop binary. Client apps call your backend, which calls Creem.
• Prices: integers in cents (1000 = $10.00). Use 0 for free products.
• Currencies: uppercase three-letter ISO codes (USD, EUR).
• Access is granted by webhook, not by the success redirect. The redirect can be forged or simply never happen if the customer closes the tab.

Reference files