Real-Time Quotes API

Polygon serves live quotes and trade prints for stocks, options, and other instruments. An agent calls the feed on a set trigger, reads the current price for the tickers you follow, and applies a rule you approved, for example writing the latest value into a watchlist or alerting when a threshold is crossed. Where the connector and account permissions allow, it records the reading into your downstream system. Prices that arrive stale, gap sharply, or fail validation are held and routed to an analyst, so no automated decision runs on data the agent cannot trust.

Aggregate Bars

Aggregate bars roll individual trades into open, high, low, close, and volume over minute, hour, or day windows. On a schedule you set, an agent requests the bars for named symbols, reads the values, and follows an approved rule such as appending them to a research table or recomputing a moving average. It notifies the desk when a bar is missing or a session looks incomplete. Any symbol whose history has gaps, splits, or unexpected adjustments is set aside for a person, keeping the agent from carrying bad numbers forward into reports.

Reference Data Endpoints

Reference endpoints describe the instruments themselves: ticker details, exchanges, market status, and corporate actions like splits and dividends. An agent queries these when a workflow needs context, reads the metadata, and applies your rule, for instance tagging a position with its exchange or pausing activity when a market is closed. It updates the linked record where permissions allow and posts a note otherwise. Tickers it cannot resolve, or corporate actions it does not recognize, are escalated to a person rather than guessed, so downstream records stay accurate.