Merchant API
Checking…Sandbox

Limits

How many requests you can make and what limits apply to the data.

LimitValue
Requests from one IP (all except /health/api)600 per 15 minutes
Requests from one client (by key)150 per 15 minutes
Sandbox from one IP, on top30 per 15 minutes
Request body10 KB, application/json only
X-Entity-Key · idempotencyKey · webhookUrl128 · 128 · 2048 characters

Exceeding a limit gives 429 Too many requests, try again later. The window is fixed: the counter resets 15 minutes after the first request in the window. The values may change — don't build logic on the exact numbers.

Staying under the limit

  • Cache the catalog: GET /products is refreshed only every 10 minutes on our side anyway.
  • Wait for the webhook instead of polling orders; if you poll, no more than once every 5–10 seconds.
  • Don't check availability of every product in a row — only the one you're buying.

Blocking

Repeated requests to non-existent paths without a valid key are treated as scanning: the IP is temporarily blocked (403 IP banned).

Maintenance

During maintenance every request except /health/api gets 503 with "code": "maintenance_mode" and the header X-Maintenance-Mode: 1. Retry later.