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Your account has a trading fee and, optionally, per-product trading rules (a product whitelist and min/max order values). You can read both at any time, and orders that break a rule are rejected with a clear message. Both endpoints require the read:account claim on your API key.

Your trading fee

Fees are applied as a markup percent on your fills. Each client has its own rate; if one hasn’t been set for you, the platform default applies.
markupPercent is a percent — 0.30 means 0.30%. The fee is deducted from the filled amount (the base asset on a BUY, the quote on a SELL) and reflected on each order’s fees / totalUserRecieveAmount.

Your account settings

One call returns your fee plus every product you may trade with its effective limits — use it to drive your order forms.
  • restricted — always true: your account is a whitelist, so the products listed are the only ones you may trade. An empty products array means you have not been granted any products yet and cannot trade.
  • products — the products you may trade. minOrderSize / maxOrderSize are the order value in the quote currency (quoteCurrency) — e.g. a minimum of 10 USD and a maximum of 100,000 USD per order. null means no platform bound on that side (the exchange’s own limit still applies).

How rules affect orders

When you place an order, these rules are checked before it reaches the exchange. The order value is measured in the quote currency, and how it’s derived depends on the order type:
  • LIMIT (and STOP_LIMIT) — base_quantity × price.
  • MARKET BUY — the quote_value you send (the spend).
  • MARKET SELL — the value isn’t known at submit time, so the platform min/max bounds are skipped (the exchange’s own limits still apply).
A violation returns HTTP 400 with a descriptive message:
Your account can only trade products that have been granted to it. If your products list is empty, you have no tradable products yet — contact your account manager to have products enabled. Call GET /account/settings before building order forms so you can validate locally and surface the right limits to your users. See Orders for the order payload and Errors & Rate Limits for the full status-code reference.