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Google Merchant Center MCP

io.github.A1-x-Tech/mcp-google-merchantsv0.1.0Other

MCP server for Google Merchant Center (Merchant API v1): products, promotions, reports, issues.

In-path gate · all MCP tools

Using Google Merchant Center MCP 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
Auditable install path →Watch it hold a drift →
Trust verdict · v1 advisory · method
NOT YET SCREENEDno verdict on file

Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-08-09).

Contracts can change after screening, with no version bump. The gate pins Google Merchant Center MCP’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

Environment variables
GOOGLE_MERCHANTS_CLIENT_ID
secret

Google OAuth 2.0 client ID (refresh-token flow).

GOOGLE_MERCHANTS_CLIENT_SECRET
secret

Google OAuth 2.0 client secret (refresh-token flow).

GOOGLE_MERCHANTS_REFRESH_TOKEN
secret

OAuth refresh token with scope https://www.googleapis.com/auth/content.

GOOGLE_MERCHANTS_ACCESS_TOKEN
secret

Pre-minted OAuth access token (~1h lifetime) — alternative to the refresh trio.

GOOGLE_MERCHANTS_ACCOUNT_ID

Default Merchant Center account ID; tools can override it per call.

GOOGLE_MERCHANTS_API_BASE

API root host override.

GOOGLE_MERCHANTS_TIMEOUT_MS

Per-request timeout in milliseconds.

GOOGLE_MERCHANTS_MAX_RETRIES

Retries on transient errors (429 always; 5xx/network for reads).

MCP quality score · maturity, not trust · methodology
freshness
25
completeness
20
installability
25
documentation
15
stability
5
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