AsyncAPI channel · Forum
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Subscribe to one or more channels for the specified tickers. Subscriptions are additive — they do not replace existing subscriptions.
Channel address
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Operations
receive
sendSubscribe
Subscribe to channels
send
receiveSubscribeResponse
Subscription confirmation
Messages
Subscribe
Subscribe to channels
Content-Type:
Subscribed
Subscription confirmation
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.