Channel address
/fx
Operations
publish
publish /fx
Send a subscribe or unsubscribe request as a JSON object.
subscribe
subscribe /fx
Server pushes market data frames after a subscribe request.
Messages
fxSubscribe
Content-Type:
fxFrame
Content-Type:
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 Agent Skill and MCP server surfaces of the same providers.