AsyncAPI channel · Polygon.io · Polygon.io WebSocket APIs

business/crypto/FMV

Stream Fair Market Value for a crypto pair over the Business feed.

Provider: Polygon.io AsyncAPI: v2.6.0 Spec: Polygon.io WebSocket APIs Operations: 1 Messages: 1

Channel address

business/crypto/FMV

Operations

subscribeCryptoFMV
Receive Fair Market Value events for crypto.

Messages

FairMarketValue
Polygon's proprietary fair value estimate for the asset.
Content-Type: application/json

About 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.

Browse every event-driven channel on the APIs.io network or compare with the broader Naftiko capability, Agent Skill, and MCP server surfaces of the same providers.