Get open orders
Returns every open order for the requested account address. The endpoint is parameter-free beyond address: open-order counts are bounded by go-core’s per-account 10k-clientId cap (see TOO_MANY_CLIENT_IDS rejection), so the full set always fits in one response without paging. No authentication header is required.
Query Parameters
Master Ethereum address for this API key (must match address from POST /createApiKey for the same key). Required on REST for account-scoped reads and for place/cancel. Invalid hex → 400; mismatch with key → 403.
20-byte EVM address as hex: optional 0x or 0X prefix and exactly 40 hexadecimal digits. API responses normalize to lowercase a–f after 0x.
^(0x|0X)?[0-9a-fA-F]{40}$Response
List of open orders.