Multi Gmail MCP

Name: Multi Gmail MCP
Author: gx-55

by gx-55version 1.0.1i★ –iRuns on your computer

Registry nameio.github.gx-55/multi-gmail-mcp

Install

Overview

Description from the maker (original English)

Manage multiple Gmail accounts in Claude Desktop — search, send, reply, draft, and organize.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Chat & email
You need to fill in: GOOGLE_CLIENT_SECRET

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "multi-gmail": {
      "command": "npx",
      "args": [
        "-y",
        "multi-gmail-mcp"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "your-value",
        "GOOGLE_CLIENT_SECRET": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add multi-gmail --env GOOGLE_CLIENT_ID=your-value --env GOOGLE_CLIENT_SECRET=your-value -- npx -y multi-gmail-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "multi-gmail": {
      "command": "npx",
      "args": [
        "-y",
        "multi-gmail-mcp"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "your-value",
        "GOOGLE_CLIENT_SECRET": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "multi-gmail": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "multi-gmail-mcp"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "your-value",
        "GOOGLE_CLIENT_SECRET": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

GOOGLE_CLIENT_ID env
Google OAuth2 client ID from your Google Cloud project (alternative to ~/.gmail-mcp-oauth.json)
GOOGLE_CLIENT_SECRET secret env
Google OAuth2 client secret from your Google Cloud project (alternative to ~/.gmail-mcp-oauth.json)

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account gx-55, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Chat & emaili

More stars than 0% of the other 1784 servers in this category
Published to the registry more recently than 7% of the other 1784 servers in this category
Basic checks equal to or better than 100% of the other 1784 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Multi Gmail MCP safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: GOOGLE_CLIENT_SECRET

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.1) reached the registry 6 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Vexa, emailmd, MCP WhatsApp Cloud

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Vexa

by Vexa-ai

Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.

Runs in the cloud★ 2,949Apache-2.0Updated 2 months ago

Install

emailmd

by anypost

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

Computer or cloud★ 1,385MITUpdated 31 days ago

Install

MCP WhatsApp Cloud

by codespar

MCP server for WhatsApp Cloud API (Meta) — messages, media, and templates via Graph API

Runs on your computer★ 277MITUpdated 5 months ago

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

multi-gmail-mcp

A Model Context Protocol (MCP) server that lets Claude Desktop manage multiple Gmail accounts simultaneously. Listed on the official Anthropic MCP registry and published on npm.

Features

Connect unlimited Gmail accounts — personal, work, side projects
Search any inbox using full Gmail search syntax
Read complete emails with MIME parsing
Send, reply in thread, and create drafts
Organize with labels: add, remove, list, archive
Mark as read / unread
Tokens stored locally in ~/.gmail-mcp-tokens.db — never committed to git
Auto-refreshes OAuth tokens silently

Requirements

Node.js >= 22.5.0
A Google Cloud project with the Gmail API enabled
Claude Desktop

Installation

npm install -g multi-gmail-mcp

This registers two global commands: gmail-mcp (the MCP server) and gmail-mcp-cli (account manager).

Google Cloud Setup

You only need to do this once.

Go to console.cloud.google.com → create a project
Enable the Gmail API (APIs & Services → Library)
Configure the OAuth consent screen — External, add your Gmail addresses as test users
Add scopes: gmail.readonly, gmail.send, gmail.modify, gmail.labels
Create a Desktop app OAuth credential → download the JSON
Save it to ~/.gmail-mcp-oauth.json

Alternatively, set environment variables in the Claude Desktop config (see below).

Authenticating Gmail Accounts

# Add accounts (opens browser for Google sign-in)

gmail-mcp-cli add personal@gmail.com gmail-mcp-cli add work@company.com

List authenticated accounts

gmail-mcp-cli list

Remove an account

gmail-mcp-cli remove work@company.com

Tokens are saved to ~/.gmail-mcp-tokens.db and refreshed automatically.

Claude Desktop Configuration

Edit ~/Library/Application Support/Claude/claude_desktop_config.json:

"mcpServers": { "multi-gmail": { "command": "gmail-mcp" } } }

If you prefer environment variables over ~/.gmail-mcp-oauth.json:

"mcpServers": { "multi-gmail": { "command": "gmail-mcp", "env": { "GOOGLE_CLIENT_ID": "your-client-id.apps.googleusercontent.com", "GOOGLE_CLIENT_SECRET": "your-client-secret" } } } }

Restart Claude Desktop after saving. Click the hammer icon to confirm 19 tools are loaded.

Available Tools

Account Management

Tool	Description
`list_accounts`	List all authenticated Gmail accounts
`initiate_auth`	Start OAuth flow — returns a URL to open in browser
`complete_auth`	Finalize auth after completing Google sign-in
`remove_account`	Remove an account and its stored credentials

Reading Email

Tool	Description
`search_emails`	Search with Gmail syntax (`is:unread`, `from:`, `after:`, etc.)
`get_email`	Fetch full email content by message ID

Writing Email

Tool	Description
`send_email`	Send an email (supports To, CC, BCC)
`reply_to_email`	Reply in thread, preserving References headers
`create_draft`	Save an email as a draft

Organization

Tool	Description
`list_labels`	List all Gmail labels for an account
`add_label`	Add one or more labels to a message
`remove_label`	Remove one or more labels from a message
`archive_email`	Remove from Inbox
`mark_as_read`	Remove the UNREAD label
`mark_as_unread`	Add the UNREAD label

Example Prompts

List all my authenticated Gmail accounts.

Search my work@company.com inbox for unread emails from this week.

Reply to that email from my personal account saying I'll be there Saturday.

Send an email from personal@gmail.com to friend@example.com

with subject "Dinner plans" and body "Are you free Saturday?"

Archive everything older than a week in my side-project inbox that's already read.

Check both my accounts for emails from GitHub and summarize them.

Security

~/.gmail-mcp-oauth.json and ~/.gmail-mcp-tokens.db live in your home directory — outside the project, never committed
.gitignore excludes *.db, .gmail-mcp-oauth.json, and .env
The server runs over stdio only — no network port is opened
OAuth scopes are limited to the minimum required

See SECURITY.md for full details: token storage, network behavior, scope rationale, revocation steps, and how to report a vulnerability.

Registry

Listed on the official Anthropic MCP registry:

io.github.gx-55/multi-gmail-mcp

curl "https://registry.modelcontextprotocol.io/v0.1/servers?search=io.github.gx-55"

Project Structure

multi-gmail-mcp/

├── bin/ │ ├── gmail-mcp.js # Entry point for the MCP server command │ └── gmail-mcp-cli.js # Entry point for the CLI command ├── src/ │ ├── server.js # MCP server — all 19 tools │ ├── gmail-client.js # Gmail API wrapper │ ├── auth.js # OAuth2 flow with auto-refresh │ ├── db.js # SQLite token storage (node:sqlite) │ └── cli.js # Account management CLI └── package.json

Troubleshooting

"No OAuth credentials found" Make sure ~/.gmail-mcp-oauth.json exists or set GOOGLE_CLIENT_ID / GOOGLE_CLIENT_SECRET in the Claude Desktop config.

"Account not found. Authenticate it first" Run gmail-mcp-cli add your@gmail.com before using that account in Claude.

Tools not appearing in Claude Desktop Confirm gmail-mcp is in your PATH (which gmail-mcp) and restart Claude Desktop.

Token expired errors Tokens auto-refresh if a valid refresh token is stored. If refresh fails, remove the account and re-authenticate: gmail-mcp-cli remove your@gmail.com && gmail-mcp-cli add your@gmail.com.

Multi Gmail MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Chat & emaili

Common questions

Alternatives

Vexa

emailmd

MCP WhatsApp Cloud

README from the maker

multi-gmail-mcp

Features

Requirements

Installation

Google Cloud Setup

Authenticating Gmail Accounts

List authenticated accounts

Remove an account

Claude Desktop Configuration

Available Tools

Account Management

Reading Email

Writing Email

Organization

Example Prompts

Security

Registry

Project Structure

Troubleshooting