Gmail Postmaster Tools MCP

Item: Gmail Postmaster Tools MCP
Rating: 43
Author: M8ven

Query your domains, sender compliance status, and Gmail traffic metrics from Claude, Cursor, or any MCP client using the Gmail Postmaster Tools API.

→ optipub/gmail-postmaster-tools-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 1 credential: GPT_CLIENT_SECRET

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.

configGPT_API_BASE— API base URL https://gmailpostmastertools.googleapis.com/v2

configGPT_AUTHORIZE_URL

configGPT_CLIENT_ID— "": "xxxxx.apps.googleusercontent.com",

🔐 secretGPT_CLIENT_SECRET— "": "xxxxx"

configGPT_LOGIN_TIMEOUT_MS— Sign-in wait 180000

configGPT_REQUEST_TIMEOUT_MS— Per-request timeout 60000

configGPT_SCOPE— (list/get domains). Override with the env var if you want to narrow

configGPT_TOKEN_DIR— Token cache directory ~/.gmail-postmaster-mcp

configGPT_TOKEN_URL

// 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 1 concrete improvement 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/optipub-gmail-postmaster-tools-mcp-6wb8nc)](https://m8ven.ai/mcp/optipub-gmail-postmaster-tools-mcp-6wb8nc)

commit: df71e5dfbb5f1d201c029077a164592b195a2917

code hash: f1fe2878893561b1dac8441ce575a42f4b81a045da36a08a6145339df06f63a9

verified: 7/30/2026, 8:59:35 AM

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