Trading API
Quote, place, monitor, cancel, and reconcile MyStocks master-account and sub-account orders.
The Trading API is the order and portfolio lane of the Partner API. It supports quote-gated market orders, resting order types, executions, portfolios, buying power, fractional cash-value investing, and order lifecycle events.
Get started
Place and monitor your first sandbox order.
Order lifecycles
Understand pending, working, filled, rejected, and cancelled states.
Trading guide
Review quotes, order types, time-in-force, cancellation, and portfolios.
API Tester
Try quote, trade, order, and portfolio operations.
Trading writes require a fresh quote where specified, a valid idempotency key, and the required trading scope. See Errors and Rate Limits before integrating retries.
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