Alpaca Broker API provides replayable and real-time event streams via Server-Sent Event (SSE). The SSE protocol is a simple yet powerful protocol to satisfy a lot of your needs to build flawless user experience. Each endpoint can be queried by the event timestamp or monotonically incremental integer ID to seamlessly subscribe from the past point-in-time event to the real-time pushes with a simple HTTP request. While all SSE endpoints follow the same JSON object model as other REST endpoints, SSE protocol is a lightweight addition on top of the basic HTTP protocol which is a bit different from REST protocol. Please make sure your client program handles the SSE protocol correctly.
Currently, Events API supports various events such as account, trade, journal and activity events.
Updated 3 months ago