# Pub/Sub MCP
> Google Cloud managed MCP server for Pub/Sub. Exact tool names and accessible operations depend on the published server reference and configured Google Cloud permissions.
Canonical: https://www.mcpfolio.com/servers/google-cloud-pub-sub
Last updated: 2026-10-28
## Catalog record

- Publisher: Google Cloud
- Categories: cloud-service

## Website

https://docs.cloud.google.com/pubsub/docs/reference/mcp

## Transports

Streamable HTTP

## Authentication

Google Cloud authentication: OAuth 2.0 using Application Default Credentials (ADC) in supported Google clients, or a client OAuth ID/secret or bearer token in compatible third-party clients. The principal needs mcp.tools.call plus the underlying product permissions; API key authentication is only available for services that explicitly support it.

## Tools

- **create_topic**: Create a new Cloud Pub/Sub topic. Important Notes A topic is a named resource that represents a feed of messages.
- **update_topic**: Update an existing Cloud Pub/Sub topic. Important Notes A topic is a named resource that represents a feed of messages. Certain properties of a topic, such as its name, are not modifiable.
- **delete_topic**: Delete an existing Cloud Pub/Sub topic. Important Notes A topic is a named resource that represents a feed of messages. Existing subscriptions to this topic are not deleted, but their topic field is set to _deleted-topic_ .
- **get_topic**: Get the configuration of a Cloud Pub/Sub topic. Important Notes A topic is a named resource that represents a feed of messages.
- **list_topics**: List all Cloud Pub/Sub topics in a given project. Important Notes A topic is a named resource that represents a feed of messages.
- **create_subscription**: Create a new Cloud Pub/Sub subscription to a given topic. Important Notes A subscription is a named resource that represents a stream of messages from a single, specific topic, to be delivered to the subscribing application.
- **update_subscription**: Update an existing Cloud Pub/Sub subscription. Important Notes A subscription is a named resource that represents a stream of messages from a single, specific topic, to be delivered to the subscribing application. Certain properties of a subscription, such as its topic, are not modifiable.
- **delete_subscription**: Delete an existing Cloud Pub/Sub subscription. Important Notes A subscription is a named resource that represents a stream of messages from a single, specific topic, to be delivered to the subscribing application. All messages retained in the subscription are immediately dropped. Calls to Pull after deletion will return NOT_FOUND .
- **get_subscription**: Get the configuration of a Cloud Pub/Sub subscription. Important Notes A subscription is a named resource that represents a stream of messages from a single, specific topic, to be delivered to the subscribing application.
- **list_subscriptions**: List all Cloud Pub/Sub subscriptions in a given project. Important Notes A subscription is a named resource that represents a stream of messages from a single, specific topic, to be delivered to the subscribing application.
- **create_snapshot**: Create a new Cloud Pub/Sub snapshot from a given subscription. Important Notes A snapshot is a named resource that captures the acknowledgment state of messages in an existing subscription to allow for managing acknowledgments in bulk. Snapshots are used in Seek operations to manage message acknowledgments in bulk.
- **delete_snapshot**: Delete an existing Cloud Pub/Sub snapshot. Important Notes A snapshot is a named resource that captures the acknowledgment state of messages in an existing subscription to allow for managing acknowledgments in bulk. When the snapshot is deleted, all messages retained in the snapshot are immediately dropped.
- **get_snapshot**: Get the configuration of a Cloud Pub/Sub snapshot. Important Notes A snapshot is a named resource that captures the acknowledgment state of messages in an existing subscription to allow for managing acknowledgments in bulk.
- **list_snapshots**: List all Cloud Pub/Sub snapshots in a given project. Important Notes A snapshot is a named resource that captures the acknowledgment state of messages in an existing subscription to allow for managing acknowledgments in bulk.
- **publish**: Publish a series of one or more messages to an existing topic. Usage Create a new byte array to hold the message data. Populate the byte array with the message data. Call publish passing the topic name and the byte array. Important Notes If the publish call returns NOT_FOUND, it likely means the topic does not exist. In this case, you should return an error.

## Sources

- [official_server_catalog](https://docs.cloud.google.com/mcp/supported-products)
- [official_setup_guide](https://docs.cloud.google.com/mcp/configure-mcp-ai-application)
- [official_authentication_guide](https://docs.cloud.google.com/mcp/authenticate-mcp)
- [official_source](https://docs.cloud.google.com/pubsub/docs/reference/mcp)
- [official_source](https://docs.cloud.google.com/pubsub/docs/use-pubsub-mcp)

## Setup

Use the interactive setup panel on [the detail page](https://www.mcpfolio.com/servers/google-cloud-pub-sub) to view instructions for each supported client.