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Single WebSocket channel. After connecting, the client publishes one or more subscribe messages naming a market symbol (e.g. EURUSD:CUR) or a named channel (calendar, news, earnings). The server then pushes JSON messages for each subscribed topic over the same connection.
Channel address
Operations
Messages
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.