AsyncAPI channel · Blockchain.com
· Blockchain.com WebSocket APIs
/inv#op_return_sub
Stream of transactions containing OP_RETURN outputs (arbitrary data embeds).
Channel address
/inv#op_return_sub
Operations
publish
subscribeOpReturn
Subscribe to transactions containing OP_RETURN outputs.
subscribe
receiveOpReturnTx
Receive utx events for transactions that include OP_RETURN data.
Messages
BitcoinOpOpReturnSub
Subscribe to OP_RETURN transactions
Content-Type:
BitcoinUtxMessage
Unconfirmed transaction (utx)
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 Naftiko capability, Agent Skill, and MCP server surfaces of the same providers.