gmc-mcp

MCP server for Google Merchant Center, providing 126 tools to manage Google Shopping feed, products, inventory, reports, promotions, returns, and account configuration via natural language.

→ kiwoongeom/gmc-mcp · listed on glama

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// key findings

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

🔐

You'll be asked for 2 credentials: GMC_SERVICE_ACCOUNT_KEY, GMC_OAUTH_TOKEN

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configGMC_LOG_LEVEL— no INFO DEBUG/INFO/WARNING/ERROR

configGMC_ACCOUNT_ID— =1234567890

🔐 secretGMC_SERVICE_ACCOUNT_KEY— =/abs/path/to/service-account.json

🔐 secretGMC_OAUTH_TOKEN— export =./secrets/oauth-token.json

configGMC_SUBACCOUNT_ID— no — When using an MCA

configGMC_AUDIT_LOG— Every write logs a JSONL entry to (default: ./logs/audit.jsonl). Each entry contains:

configGMC_TRANSPORT— no stdio stdio or sse

configGMC_PAGE_SIZE— no 100 Default list page size

configGMC_TIMEOUT— no 30 Per-request seconds

configGMC_PORT— no 8000 SSE only

configGMC_DRY_RUN— true gmc-mcp run

configGMC_HOST— no 127.0.0.1 SSE only

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/kiwoongeom-gmc-mcp-1n62ml)](https://m8ven.ai/mcp/kiwoongeom-gmc-mcp-1n62ml)

commit: 8f59d238982dcd1c661744a946ca4c48492a2e92

code hash: 5eb7a619c21aa78e1454272a1af35c1fe7117e62263694451dc429a3396d303f

verified: 6/18/2026, 11:41:44 AM

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