GCS MCP Server - install, status & alternatives [2026]

01 · Install GCS

before you install - you'll need

Set GCS_PROJECT_ID, GCS_SERVICE_ACCOUNT_KEY_FILE, GCS_ENABLED_TOOLGROUPS, GCS_BUCKET before connecting.

Claude Code

claude mcp add pulsemcp-mcp-servers-experimental-gcs -- npx -y gcs-google-mcp-server

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "pulsemcp-mcp-servers-experimental-gcs": {
      "command": "npx",
      "args": [
        "-y",
        "gcs-google-mcp-server"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

npm package gcs-google-mcp-server - unscoped; check the name against the project README before installing

registry vendor namespace com.pulsemcp - domain-verified with the official MCP registry

03 · What GCS can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

What you can build

With this server connected, an agent can list all GCS buckets in the Google Cloud project, list objects in a bucket with prefix and pagination, get object contents as text, and download a single object to a local file (binary-safe).

Capability map

Tools grouped from the project's README - what GCS lets an agent do.

Object

6 tools - e.g. Get object contents as text; Download a single object to a local file (binary-safe); Upload or update an object from inline string content

get_object · download_object · put_object · put_object_from_path · copy_object · delete_object

Bucket

3 tools - e.g. Check if a bucket exists and is accessible; Create a new GCS bucket; Delete an empty GCS bucket

head_bucket · create_bucket · delete_bucket

read & search

2 tools - e.g. List all GCS buckets in the Google Cloud project; List objects in a bucket with prefix and pagination

list_buckets · list_objects

Download

1 tool - e.g. Recursively download a prefix to a local directory (binary-safe)

download_prefix

create & write

1 tool - e.g. Recursively upload a local directory tree from disk (binary-safe, context-free)

upload_prefix

Latest releases

[email protected] · 2026-07-10

Fixed · Gmail deep-links emitted by list_email_conversations, search_email_conversations, get_email_conversation, and send_email now use the form instead of Two independent defects made the old links fail to open the…

[email protected] · 2026-07-09

Added · create_oauth_client tool (keys group, write): mints a non-interactive Tailscale OAuth client (client_id + client_secret) with configurable scopes and ACL tags. Unlike create_auth_key - which only enrolls…

[email protected] · 2026-07-06

Added · set_account_balance_history (manage group): edit a manual account's recorded daily balance snapshots. Previously the server could read balance history (get_account_balance_history) but had no write counterpart…

04 · Who maintains GCS

gcs is maintained by pulsemcp. We track 29 MCP servers from pulsemcp - 28 actively maintained, 77 combined GitHub stars, oldest repo from May 2025. Full record: all servers from pulsemcp.

05 · Facts

repository: github.com/pulsemcp/mcp-servers
category: cloud infrastructure - actively maintained as of 2026-08-25.
registry: com.pulsemcp/gcs (active, first published 2026-05-18 · 4 versions)
packages: npm:gcs-google-mcp-server

06 · GCS FAQ

Is GCS still maintained?

Yes - as of 2026-08-25, its last commit was 2026-07-26. We re-verify nightly.

What can GCS do?

With this server connected, an agent can list all GCS buckets in the Google Cloud project, list objects in a bucket with prefix and pagination, get object contents as text, and download a single object to a local file (binary-safe).

How do I install GCS?

Run `npx -y gcs-google-mcp-server`. The README documents 4 environment variables (GCS_PROJECT_ID, GCS_SERVICE_ACCOUNT_KEY_FILE, GCS_ENABLED_TOOLGROUPS…) to set first. Set GCS_PROJECT_ID, GCS_SERVICE_ACCOUNT_KEY_FILE, GCS_ENABLED_TOOLGROUPS, GCS_BUCKET before connecting. You can also paste the ready-made client config above.

Does GCS run locally?

Yes - it's a stdio server: it runs on your machine (via npx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to GCS

Alternatives to GCS

Maintained cloud infrastructure servers if GCS isn't the fit.

Pairs well with

Servers that cover what GCS doesn't - only shown when the pairing reason fits the companion.

More cloud infrastructure MCP servers · S3 (pulsemcp) · Vercel · Pi-hole MCP Server · Vnsh · Transcriptor MCP

More TypeScript MCP servers · Gmail (pulsemcp) · Good Eggs · Google Calendar · Google Docs · Google Flights (pulsemcp) · see all