What is the key difference between Gmail and MCP Hey?

Gmail belongs to the Communication category with local stdio execution, while MCP Hey belongs to the Communication category with local stdio execution.

How do I install Gmail or MCP Hey in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Gmail and MCP Hey free or paid?

Gmail operates under a Free / Open Source model (No auth required). MCP Hey operates under a Free / Open Source model (other).

Which MCP server has more tools and community activity?

Gmail lists 6 tools with 3 views and 3 GitHub stars. MCP Hey lists 6 tools with 5 views and 13 GitHub stars.

Can I use both Gmail and MCP Hey together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Gmail vs MCP Hey

In-depth architectural comparison of the Gmail and MCP Hey MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Gmail

Communication · Local stdio

Quality: 45/100 (Fair) | Auth: No auth required

MCP Hey

Communication · Local stdio

Quality: 47/100 (Fair) | Auth: other

Verdict Summary: Choose Gmail if you need specialized Communication tools running via a local process. Choose MCP Hey if your workspace requires Communication integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Gmail when:

You need dedicated capabilities in the Communication domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
You have access to required keys: GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET, AUTH_MODE, GOOGLE_SERVICE_ACCOUNT_KEY_FILE, REDIRECT_URI, TOKEN_STORE_URI, DCR_STORE_URI.
Primary tools included: OAuth and service-account authentication, Message search and retrieval, Email sending and replies.

Explore Gmail Details

Choose MCP Hey when:

You need dedicated capabilities in the Communication domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: other (Free / Open Source).
Primary tools included: Read email across Hey mailbox areas, Search with a local SQLite full-text index, Send, reply to, and forward messages.

Feature & Specification Comparison

Specification	Gmail Communication	MCP Hey Sealjay Communication
Summary	Gmail integration with OAuth authentication, message search, batch operations, and Sheets export	Local MCP server for Hey.com email. Read, search, send, reply, and manage the screener via locally cached session from Hey's webview auth.
Category & Scope	Communication	Communication

Tools & Capabilities Breakdown

Gmail Tools (6)

OAuth and service-account authentication

Message search and retrieval

Email sending and replies

Label and message-state management

CSV message export

Stdio and HTTP transports

MCP Hey Tools (6)

Read email across Hey mailbox areas

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Gmail Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "gmail-3": {
      "command": "npx",
      "args": [
        "-y",
        "@mcp-z/cli"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "YOUR_GOOGLE_CLIENT_ID_HERE",
        "GOOGLE_CLIENT_SECRET": "YOUR_GOOGLE_CLIENT_SECRET_HERE",
        "AUTH_MODE": "YOUR_AUTH_MODE_HERE",
        "GOOGLE_SERVICE_ACCOUNT_KEY_FILE": "YOUR_GOOGLE_SERVICE_ACCOUNT_KEY_FILE_HERE",
        "REDIRECT_URI": "YOUR_REDIRECT_URI_HERE",
        "TOKEN_STORE_URI": "YOUR_TOKEN_STORE_URI_HERE",
        "DCR_STORE_URI": "YOUR_DCR_STORE_URI_HERE"
      }
    }
  }
}

MCP Hey Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "sealjay-mcp-hey": {
      "command": "npx",
      "args": [
        "-y",
        "sealjay-mcp-hey"
      ]
    }
  }
}

Frequently Asked Questions

Gmail is categorized under Communication and uses a local stdio subprocess. In contrast, MCP Hey belongs to Communication using local stdio subprocess. Select Gmail when you need capabilities focused on communication and MCP Hey when you require tools for communication.

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