What is the key difference between Email MCP and Sales Intelligence MCP?

Email MCP belongs to the Communication category with local stdio execution, while Sales Intelligence MCP belongs to the Communication category with local stdio execution.

How do I install Email MCP or Sales Intelligence MCP 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 Email MCP and Sales Intelligence MCP free or paid?

Email MCP operates under a Free / Open Source model (other). Sales Intelligence MCP operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Email MCP lists 33 tools with 4 views and 22 GitHub stars. Sales Intelligence MCP lists 5 tools with 4 views and 0 GitHub stars.

Can I use both Email MCP and Sales Intelligence MCP 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

Email MCP vs Sales Intelligence MCP

In-depth architectural comparison of the Email MCP and Sales Intelligence MCP 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

Email MCP

Communication · Local stdio

Quality: 68/100 (Great) | Auth: other

Sales Intelligence MCP

Communication · Local stdio

Quality: 38/100 (Fair) | Auth: No auth required

Verdict Summary: Choose Email MCP if you need specialized Communication tools running via a local process. Choose Sales Intelligence MCP 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 Email MCP 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: email_list_accounts, email_add_account, email_remove_account.

Explore Email MCP Details

Choose Sales Intelligence MCP 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).
Primary tools included: Company email discovery, B2B data enrichment, Lead-list generation.

Explore Sales Intelligence MCP Details

Feature & Specification Comparison

Specification	Email MCP marlinjai Communication	S Sales Intelligence MCP Communication
Summary	Unified MCP server for email across Gmail (REST API), Outlook (Microsoft Graph), iCloud, and generic IMAP/SMTP. 24 tools for search, send, organize, and batch-manage emails with built-in OAuth2 and encrypted credential storage.	B2B sales intelligence — company emails, enrichment, lead lists, hiring & funding signals.
Category & Scope	Communication

Tools & Capabilities Breakdown

Email MCP Tools (33)

email_list_accounts

List all configured email accounts and their connection status

email_add_account

Add a new IMAP or iCloud email account (Gmail and Outlook require the setup wizard for OAuth)

email_remove_account

Remove an email account: deletes its stored credentials, revokes the Google grant for Gmail accounts, and removes Outlook tokens from the local token cache. The result reports whether provider-side revocation succeeded.

email_test_account

Test an email account connection

email_list_folders

List all email folders for an account

email_search

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).

Email MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "marlinjai-email-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@marlinjai/email-mcp"
      ]
    }
  }
}

Sales Intelligence MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "sales-intelligence-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "sales-intelligence-mcp"
      ]
    }
  }
}

Frequently Asked Questions

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

More alternatives to Email MCP More alternatives to Sales Intelligence MCP Communication category hub