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Google Sheets

io.github.mcp-z/mcp-sheetsv1.0.7Documents & Spreadsheets

Google Sheets integration with OAuth, spreadsheet management, batch operations, and formatting

In-path gate · all MCP tools

Using Google Sheets in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire
Trust verdict · v1 advisory · method
REVIEWstatus: PARTIALfresh until 2026-08-02 11:01 UTC
screened 2026-07-03tier: scannedgranularity: description-levelsource: registry

Semantic screen found no manipulation pattern in the description. Conformance probe not yet run.

mcpindex.integrity.descriptionpassINFO

evidenceNo malicious instructions foundvia static_description

Limits of this verdict
  • - Semantic screen only - the deterministic conformance probe has not run on this server
  • - Confidence is reported but not yet calibrated (v1)
  • - Screen reads the tool description, not the live behavior
  • - advisory
  • - registry description only no input schema
  • - screen model 8b

Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-07-31).

Contracts can change after screening, with no version bump. The gate pins Google Sheets’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Related: how to trust an MCP server · screen before install · silent contract drift

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A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.

Markdown
[![mcpindex](https://mcpindex.ai/api/v1/badge/io-github-mcp-z-mcp-sheets)](https://mcpindex.ai/server/io-github-mcp-z-mcp-sheets)
HTML
<a href="https://mcpindex.ai/server/io-github-mcp-z-mcp-sheets"><img src="https://mcpindex.ai/api/v1/badge/io-github-mcp-z-mcp-sheets" alt="mcpindex verdict" height="20" /></a>
Environment variables
GOOGLE_CLIENT_ID
required

Google OAuth client ID (required for OAuth authentication modes)

GOOGLE_CLIENT_SECRET
secret

Google OAuth client secret (optional for public clients)

GOOGLE_SERVICE_ACCOUNT_KEY_FILE

Path to service account JSON key file (required for service-account auth mode)

AUTH_MODE

Authentication mode

HEADLESS

Disable browser auto-open, return auth URL instead (true/false)

REDIRECT_URI

OAuth redirect URI (optional, default: ephemeral loopback)

RESOURCE_STORE_URI

Resource store URI for exported files (file://)

PORT

HTTP server port (overrides --port)

BASE_URL

Base URL for HTTP transport (used for OAuth/DCR endpoints and file links)

LOG_LEVEL

Logging level

GOOGLE_CLIENT_ID
required

Google OAuth client ID (required for OAuth authentication modes)

GOOGLE_CLIENT_SECRET
secret

Google OAuth client secret (optional for public clients)

GOOGLE_SERVICE_ACCOUNT_KEY_FILE

Path to service account JSON key file (required for service-account auth mode)

AUTH_MODE

Authentication mode

HEADLESS

Disable browser auto-open, return auth URL instead (true/false)

REDIRECT_URI

OAuth redirect URI (optional, default: ephemeral loopback)

DCR_MODE

Dynamic Client Registration mode

DCR_VERIFY_URL

External verification endpoint URL (required for external DCR mode)

DCR_STORE_URI

DCR client storage URI (for self-hosted DCR mode)

RESOURCE_STORE_URI

Resource store URI for exported files (file://)

PORT

HTTP server port (overrides --port)

BASE_URL

Base URL for HTTP transport (used for OAuth/DCR endpoints and file links)

LOG_LEVEL

Logging level

MCP quality score · maturity, not trust · methodology
freshness
12
completeness
15
installability
25
documentation
10
stability
10
Alternatives in Documents & Spreadsheets