Read these five pages, in this order, before you write integration code.
| # | Page | What you learn |
|---|---|---|
| 1 | PayMe at a glance | Products, payment methods, currencies, environments, compliance and support contact — in one page. |
| 2 | Authentication | Which credential goes where: seller_payme_id (MPL), payme_client_key, the public key, and the OAuth/JWT tokens used by the Keep and Products & Customers APIs. |
| 3 | Environments | Sandbox vs production base URLs, test cards, and the hosts you will see in sale_url. |
| 4 | Quickstart | One complete sale in the sandbox with curl: create a sale, pay it, receive the callback, refund it. |
| 5 | Callbacks | How PayMe notifies your server, what the payload contains, and how to handle it. |
After those, read Errors and Idempotency and retries before going live.
5075, and the minimum sale_price is 500. POST with x-www-form-urlencoded body to your callback URL, even though your requests to PayMe are JSON. "language": "en" to get English error messages.⚠ TO CONFIRM: How does a developer get sandbox credentials (seller_payme_id/MPL, payme_client_key, public key) — self-service sign-up, an account manager, or an email to support? [Q5]