AsyncAPI channel · Google Cloud Pub/Sub · Google Cloud Pub/Sub Messaging Surface

`projects/{projectId}/topics/{topicId}`

Name: projects/{projectId}/topics/{topicId}
Creator: Google Cloud Pub/Sub

A Pub/Sub topic. Publishers send messages to a topic; the messages are then delivered to all subscriptions attached to that topic.

Open source AsyncAPI → All Google Cloud Pub/Sub channels Google Cloud Pub/Sub provider profile

Provider: Google Cloud Pub/Sub AsyncAPI: v2.6.0 Spec: Google Cloud Pub/Sub Messaging Surface Operations: 1 Messages: 1

Channel address

projects/{projectId}/topics/{topicId}

Parameters

projectId — The Google Cloud project ID that owns the topic.
topicId — The Pub/Sub topic ID.

Operations

publish

publishMessage

Publish a message to a topic

Messages

PubsubMessage

A message published to a Pub/Sub topic.

Content-Type: application/json

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.