> ## Documentation Index
> Fetch the complete documentation index at: https://docs.whitebit.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Sub-Accounts

> Create and manage thousands of separate trading accounts under one umbrella -- each with independent balances, API keys, and IP whitelists.

export const RegionBaseUrl = ({className = "", showBaseUrl = true}) => {
  const [region, setRegionState] = useState(() => {
    if (typeof window !== 'undefined') {
      return localStorage.getItem("api-region-preference") || "com";
    }
    return "com";
  });
  const [mounted, setMounted] = useState(false);
  const observerRef = useRef(null);
  const isSyncingRef = useRef(false);
  const updateAllContentOnPage = targetRegion => {
    try {
      const domainFrom = targetRegion === "eu" ? "whitebit.com" : "whitebit.eu";
      const domainTo = targetRegion === "eu" ? "whitebit.eu" : "whitebit.com";
      const links = document.querySelectorAll('a');
      links.forEach(link => {
        let href = link.getAttribute('href');
        if (href && href.includes(domainFrom)) {
          link.setAttribute('href', href.replace(domainFrom, domainTo));
        }
      });
      const walker = document.createTreeWalker(document.body, NodeFilter.SHOW_TEXT, {
        acceptNode: node => {
          if (node.parentElement?.closest('.region-toggle-component')) {
            return NodeFilter.FILTER_REJECT;
          }
          return node.textContent.includes(domainFrom) ? NodeFilter.FILTER_ACCEPT : NodeFilter.FILTER_REJECT;
        }
      });
      let currentNode;
      while (currentNode = walker.nextNode()) {
        currentNode.textContent = currentNode.textContent.replace(new RegExp(domainFrom, 'g'), domainTo);
      }
      console.log(`[RegionSync] Global content updated to ${domainTo}`);
    } catch (e) {
      console.error("[RegionSync] Error updating content:", e);
    }
  };
  const updateRegion = (newRegion, source) => {
    if (region === newRegion) return;
    console.log(`[RegionBaseUrl] Updating to "${newRegion}" (Source: ${source})`);
    if (source === 'observer') {
      isSyncingRef.current = true;
      setTimeout(() => isSyncingRef.current = false, 1000);
    }
    setRegionState(newRegion);
    localStorage.setItem("api-region-preference", newRegion);
    updateAllContentOnPage(newRegion);
    if (source === 'user-click') {
      window.dispatchEvent(new CustomEvent("regionChange", {
        detail: newRegion
      }));
      attemptToUpdateNativeDropdown(newRegion, 0);
      setTimeout(() => attemptToUpdateNativeDropdown(newRegion, 1), 500);
      setTimeout(() => attemptToUpdateNativeDropdown(newRegion, 2), 1500);
    }
  };
  const attemptToUpdateNativeDropdown = (targetRegion, attempt) => {
    if (isSyncingRef.current) return;
    try {
      const targetUrl = targetRegion === "eu" ? "https://whitebit.eu" : "https://whitebit.com";
      const targetDesc = targetRegion === "eu" ? "EU Server" : "Production Server";
      const selects = document.querySelectorAll('select');
      for (const select of selects) {
        if (select.innerHTML.includes('whitebit.com') || select.innerHTML.includes('whitebit.eu')) {
          select.value = targetUrl;
          select.dispatchEvent(new Event('change', {
            bubbles: true
          }));
          return;
        }
      }
      const buttons = Array.from(document.querySelectorAll('button, [role="combobox"]'));
      const serverSelector = buttons.find(btn => {
        if (btn.closest('a') || btn.closest('[class*="card"]') || btn.closest('nav')) {
          return false;
        }
        const txt = btn.textContent || "";
        const isServerDropdown = (txt.includes('Production Server') || txt.includes('EU Server') || txt.includes('WhiteBIT Global Server') || txt.includes('WhiteBIT EU Server')) && !txt.includes('Run') && !txt.includes('Send') || btn.getAttribute('role') === 'combobox';
        return isServerDropdown;
      });
      if (serverSelector) {
        const currentText = serverSelector.textContent || "";
        if (currentText.includes(targetDesc)) return;
        serverSelector.click();
        setTimeout(() => {
          const options = document.querySelectorAll('[role="option"], li, button');
          for (const opt of options) {
            const optText = opt.textContent || "";
            if (optText.includes(targetDesc) || optText.includes(targetUrl)) {
              opt.click();
              return;
            }
          }
        }, 100);
      }
    } catch (e) {
      console.error("[Sync] Error:", e);
    }
  };
  useEffect(() => {
    setMounted(true);
    updateAllContentOnPage(region);
    const handleStorageChange = e => {
      if (e.key === "api-region-preference" && e.newValue) {
        updateRegion(e.newValue, 'storage');
      }
    };
    const handleRegionChange = e => {
      if (e.detail !== region) {
        updateRegion(e.detail, 'event');
      }
    };
    window.addEventListener("storage", handleStorageChange);
    window.addEventListener("regionChange", handleRegionChange);
    observerRef.current = new MutationObserver(mutations => {
      if (isSyncingRef.current) return;
      updateAllContentOnPage(region);
      for (const mutation of mutations) {
        if (mutation.type !== 'childList' && mutation.type !== 'characterData') continue;
        const target = mutation.target;
        const el = target.nodeType === Node.TEXT_NODE ? target.parentElement : target;
        if (el && (el.getAttribute('role') === 'option' || el.closest('[role="listbox"]'))) continue;
        const text = target.textContent || "";
        if (text.includes('WhiteBIT EU Server') || text.includes('https://whitebit.eu') && text.includes('Server')) {
          if (el && el.tagName !== 'A' && !el.closest('.region-toggle-component')) {
            if (region !== 'eu') updateRegion('eu', 'observer');
          }
        } else if (text.includes('WhiteBIT Global Server') || text.includes('https://whitebit.com') && text.includes('Server')) {
          if (el && el.tagName !== 'A' && !el.closest('.region-toggle-component')) {
            if (region !== 'com') updateRegion('com', 'observer');
          }
        }
      }
    });
    observerRef.current.observe(document.body, {
      childList: true,
      subtree: true,
      characterData: true
    });
    if (typeof window !== 'undefined') {
      const current = localStorage.getItem("api-region-preference");
      if (current) attemptToUpdateNativeDropdown(current, 'init');
    }
    return () => {
      window.removeEventListener("storage", handleStorageChange);
      window.removeEventListener("regionChange", handleRegionChange);
      if (observerRef.current) observerRef.current.disconnect();
    };
  }, [region]);
  const apiBaseUrl = region === "eu" ? "https://whitebit.eu" : "https://whitebit.com";
  if (!mounted) return null;
  return <div className={`flex items-center gap-2 flex-wrap my-4 region-toggle-component ${className}`}>
            <span className="text-sm text-gray-500 dark:text-gray-400 font-mono">
                Base URL
            </span>
            <span className="text-sm text-gray-400">(</span>
            <div className="inline-flex bg-gray-100 dark:bg-gray-800 rounded-lg p-0.5 border border-gray-200 dark:border-gray-700">
                <button onClick={() => updateRegion("com", "user-click")} className={`px-2 py-0.5 text-xs font-medium rounded-md transition-all ${region === "com" ? "bg-white dark:bg-gray-700 text-gray-900 dark:text-gray-100 shadow-sm" : "text-gray-500 dark:text-gray-400 hover:text-gray-900 dark:hover:text-gray-200"}`}>
                    .com
                </button>
                <button onClick={() => updateRegion("eu", "user-click")} className={`px-2 py-0.5 text-xs font-medium rounded-md transition-all ${region === "eu" ? "bg-white dark:bg-gray-700 text-gray-900 dark:text-gray-100 shadow-sm" : "text-gray-500 dark:text-gray-400 hover:text-gray-900 dark:hover:text-gray-200"}`}>
                    .eu
                </button>
            </div>
            <span className="text-sm text-gray-400">)</span>
            {showBaseUrl && <>
                    <span className="text-sm text-gray-400">:</span>
                    <a href={apiBaseUrl} target="_blank" rel="noopener noreferrer" className="text-sm font-mono text-primary dark:text-primary-light hover:underline">
                        {apiBaseUrl}
                    </a>
                </>}
        </div>;
};

<RegionBaseUrl />

Create and manage thousands of separate trading accounts under one umbrella -- each with independent balances, API keys, and IP whitelists. 19 API endpoints cover the full lifecycle from account creation to withdrawal approval.

## Capabilities

The Sub-Accounts API provides full programmatic control over multi-account architectures.

* **Account CRUD** -- create, edit, delete, and list sub-accounts. Each sub-account gets a unique identifier and independent settings.
* **Fee-free instant transfers** -- move assets between the main account and any sub-account without fees or delays via `POST /api/v4/sub-account/transfer`
* **Per-sub-account API keys** -- generate dedicated API keys for each sub-account with independent IP whitelists (up to 50 IPs per key). The 50-key limit applies per sub-account, independent from the main account and from other sub-accounts. Supports create, edit, delete, reset, and IP management.
* **KYC URL generation** -- generate temporary KYC verification links for sub-account users via `POST /api/v4/sub-account/kyc-url`. Requirements: sub-account must be activated, active, and not using shared KYC.
* **Withdrawal approval flow** -- review and approve pending withdrawals from sub-accounts via `POST /api/v4/sub-account/withdraw/unconfirmed-list`. Only applies to sub-accounts of type "general" with the sub-account crypto service permission.
* **Direct crypto deposits** -- once enabled for the account, sub-accounts receive crypto directly at their own deposit addresses, generated via the standard [deposit-address endpoint](/api-reference/account-wallet/get-cryptocurrency-deposit-address) using the sub-account's own API key. Disabled by default (see note below).

## Who Uses This

* **Fund managers and asset managers** -- separate client funds into isolated sub-accounts. Independent API keys per strategy or client. Fee-free transfers for rebalancing. ([Institutional sub-accounts](https://institutional.whitebit.com/sub-accounts))
* **Brokers and trading platforms** -- onboard end users as sub-accounts under the [Broker Program](https://institutional.whitebit.com/broker-program). Earn up to 40% of trading fees generated by referred users. Manage API keys centrally.
* **Prop trading firms** -- isolate trading strategies with separate risk profiles. Per-account balance monitoring. Independent position tracking.

## Common Integration Patterns

**Fund / Asset Manager** -- Create a sub-account per client or investment strategy. Generate independent API keys for each, allowing automated trading without exposing the main account. Transfer funds fee-free between the main account and sub-accounts for rebalancing. Monitor balances across all sub-accounts via `POST /api/v4/sub-account/balances`. Track transfer history via `POST /api/v4/sub-account/transfer/history`. *(Source: [institutional.whitebit.com/sub-accounts](https://institutional.whitebit.com/sub-accounts))*

**Broker / Agency** -- Apply to the [Broker Program](https://institutional.whitebit.com/broker-program) (contact [institutional@whitebit.com](mailto:institutional@whitebit.com)). Create sub-accounts for each end user. Generate KYC URLs for customer verification. Earn up to 40% of the trading fee generated by referred users (fee share applies to the base fee; [WBT](https://whitebit.com) -- WhiteBIT's native token -- holding can boost the share). Manage all sub-account API keys from the main account. *(Source: [Broker Program blog article](https://blog.whitebit.com/en/whitebit-broker-program-unlocking-new-dimensions-of-earnings/))*

<Note>
  **EUR/SEPA operations for brokers:** Fiat deposit and withdrawal functionality requires
  separate institutional onboarding through WhiteBIT and a fiat processing partner. See the
  [Onboarding Guide](/institutional/onboarding) for the full process.
</Note>

<Note>
  **Crypto deposits are disabled by default.** Once enabled for the account, the capability
  applies to the account and its sub-accounts; enablement is not available via API. To request
  it, contact your assigned Account Manager or email [institutional@whitebit.com](mailto:institutional@whitebit.com).
</Note>

**Prop Trading Firm** -- Create isolated sub-accounts per trading strategy or desk. Assign different risk budgets by controlling the balance in each sub-account. Use per-sub-account API keys to run independent trading bots — traders, risk managers, operations, and finance teams can each have separately permissioned access. Block or unblock sub-accounts via API to enforce risk controls. *(Source: [institutional.whitebit.com/sub-accounts](https://institutional.whitebit.com/sub-accounts))*

## Technical Overview

* **19 endpoints** (all `POST`, all authenticated)
* **Endpoint groups:** account management (4), transfers (2), blocking (2), balances (1), API key management (6), IP whitelist management (3), KYC (1)
* **Authentication:** HMAC-SHA512 ([guide](/api-reference/authentication))
* **Rate limits:** 1000 requests per 10 seconds per endpoint ([details](/api-reference/rate-limits))
* **Permission requirement:** sub-account crypto service permission required for withdrawal approval endpoints

For full endpoint documentation, see the [Sub-Accounts API Reference](/api-reference/sub-accounts/overview).

## What's Next

<CardGroup cols={3}>
  <Card title="Quickstart" icon="rocket" href="/products/sub-accounts/quickstart">
    Create a sub-account and transfer funds in under 5 minutes.
  </Card>

  <Card title="API Reference" icon="square-terminal" href="/api-reference/sub-accounts/overview">
    Full endpoint documentation for all 19 sub-account endpoints.
  </Card>

  <Card title="Broker Guide" icon="handshake" href="/guides/broker-guide">
    End-to-end integration guide for the Broker Program.
  </Card>
</CardGroup>