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Partner API Docs

Trading Account and Buying Power

Understand master and sub-account wallets, buying power, portfolios, settlement-aware balances, and account state before placing orders.

The Partner API supports a master trading account and isolated customer sub-accounts. Choose the account context explicitly when requesting a quote, placing an order, or reading portfolio state.

Account surfaces

NeedEndpoint
Master wallet and portfolioGET /account, GET /portfolio
Master buying powerGET /buying-power
Sub-account walletGET /users/{userId}/wallet
Sub-account portfolioGET /users/{userId}/portfolio
Sub-account buying powerGET /users/{userId}/buying-power
Account statusGET /users/{userId}

Buying power is settlement-aware. Unsettled sell proceeds may appear in portfolio or order state but remain unavailable for withdrawal until settlement. Do not use display portfolio value as withdrawable cash.

Before trading, confirm the account is active, not frozen, and KYC-eligible. See Custody and Beneficial Ownership for the distinction between ledger ownership and settled custody.

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