AsyncAPI channel · Backpack
· Backpack Exchange WebSocket Streams API
markPrice.{symbol}
Mark price stream for futures markets. Includes estimated funding rate, index price, and next funding timestamp (omitted on prediction markets).
Channel address
markPrice.{symbol}
Parameters
symbol—
Operations
subscribe
subscribeMarkPrice
Receive mark price updates for a symbol.
Messages
MarkPriceEnvelope
Mark price envelope
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.
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.