AsyncAPI channel · Polygon.io
· Polygon.io WebSocket APIs
business/forex/FMV
Stream Fair Market Value for a forex pair over the Business feed.
Channel address
business/forex/FMV
Operations
subscribe
subscribeForexFMV
Receive Fair Market Value events for forex.
Messages
FairMarketValue
Polygon's proprietary fair value estimate for the asset.
Content-Type:
application/jsonAbout AsyncAPI
The AsyncAPI specification describes event-driven APIs the way OpenAPI describes request/response APIs. A channel is the named pipe — a webhook URL, a Kafka topic, a WebSocket route, an MQTT subject — that producers and consumers publish or subscribe to. Each channel carries one or more messages with structured payloads, and an operation declares whether a given party sends or receives on that channel.
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