What is gmail-mcp-server CLAUDE.md?

A Gmail connection that lets a coding agent work with email through Google's official Gmail service. It uses OAuth 2.0, a standard way to grant an application limited account access.

Use it to search and read messages, inspect threads and attachments, send or manage drafts, apply labels, and move messages to or from the trash or mark them read or unread.

It removes the need to manually search, read, organize, draft, and send messages while working with email-related tasks.

How ihiteshgupta/gmail-mcp-server configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to ihiteshgupta/gmail-mcp-server. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/ihiteshgupta/gmail-mcp-server/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/ihiteshgupta/gmail-mcp-server

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/ihiteshgupta/gmail-mcp-server/claude-md/github.svg)](https://agentmods.dev/instructions/ihiteshgupta/gmail-mcp-server/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/ihiteshgupta/gmail-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/ihiteshgupta/gmail-mcp-server/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/instructions/ihiteshgupta/gmail-mcp-server/claude-md"><img src="https://agentmods.dev/badge/instructions/ihiteshgupta/gmail-mcp-server/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,202 This file is loaded in full into every session.

When invoked 1,202 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.01202	$0.01202
Opus 5	$0.00601	$0.00601
Sonnet 5	$0.00240	$0.00240
Haiku 4.5	$0.00120	$0.00120

Measured 9d ago against content hash 5325cac0ad88, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

gmail-mcp-server CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

CLAUDE.md · 129 lines

How it starts

The opening of the file, as written. The whole thing — 129 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Gmail MCP Server

MCP server for Gmail using Google's official Gmail API with OAuth 2.0 authentication.

Tech Stack

TypeScript / Node.js 18+
MCP SDK (@modelcontextprotocol/sdk)
Google APIs (googleapis)
OAuth 2.0 authentication

Available Tools (19 total)

Email Operations

gmail_search - Search emails using Gmail query syntax
gmail_get_message - Get full email content by ID
gmail_send - Send an email (with CC, BCC, threading support)
gmail_get_thread - Get all messages in a thread
gmail_get_profile - Get user's Gmail profile

Drafts

gmail_create_draft - Create a draft email
gmail_list_drafts - List all drafts
gmail_send_draft - Send an existing draft
gmail_delete_draft - Delete a draft

Labels

gmail_list_labels - List all labels
gmail_create_label - Create a new label
gmail_delete_label - Delete a label
gmail_modify_labels - Add/remove labels from email

Message Management

gmail_trash - Move email to trash
gmail_untrash - Remove from trash
gmail_mark_read - Mark as read
gmail_mark_unread - Mark as unread

Attachments

gmail_list_attachments - List attachments in email
gmail_get_attachment - Download attachment (base64)

Setup

# Install & build
npm install && npm run build

# Create config directory
mkdir -p ~/.gmail-mcp

# Add Google OAuth credentials (from Google Cloud Console)
cp /path/to/downloaded-credentials.json ~/.gmail-mcp/credentials.json

# Authenticate (opens browser)
npm run auth

# Add to Claude Code
claude mcp add gmail -- node ~/personal-projects/gmail-mcp-server/dist/index.js

Gmail Search Syntax

from:[email protected]    # From specific sender
subject:meeting           # Subject contains "meeting"
is:unread                 # Unread emails
has:attachment            # Has attachments
after:2024/01/01          # After date
label:work                # Has label

File Locations

Credentials: ~/.gmail-mcp/credentials.json
Auth token: ~/.gmail-mcp/token.json

Read the full file on GitHub · 129 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

9d ago First seen · 129 lines · 1,202 tokens per session scan A 5325cac0ad88

Subscribe to this mod's changes

gmail-mcp-server CLAUDE.md is an instructions file published in the GitHub repository ihiteshgupta/gmail-mcp-server (3 stars, last pushed 5mo ago), licensed MIT. It adds 1,202 tokens to every session, about $0.0060 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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gmail-mcp-server: Instructions file for Claude Code