What is the key difference between Inbox Zero and Sendifai?

Inbox Zero belongs to the Communication category with local stdio execution, while Sendifai belongs to the Communication category with local stdio execution.

How do I install Inbox Zero or Sendifai 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 Inbox Zero and Sendifai free or paid?

Inbox Zero operates under a Freemium model (OAuth 2.0). Sendifai operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Inbox Zero lists 6 tools with 1 views and 11,944 GitHub stars. Sendifai lists 0 tools with 0 views and 0 GitHub stars.

Can I use both Inbox Zero and Sendifai 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.

What is the main functional difference between Inbox Zero and Sendifai?

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

How do I install Inbox Zero or Sendifai in Claude Desktop, Cursor, or Windsurf?

Both servers follow the standard Model Context Protocol configuration format. Simply copy the JSON block from the configuration section above and paste it into your AI client's mcpServers configuration object (for instance in claude_desktop_config.json or ~/.cursor/mcp.json ), then completely restart or refresh the application.

Are Inbox Zero and Sendifai free to use, or do they require API keys?

Inbox Zero is listed under a Freemium model with OAuth 2.0 . Sendifai operates under a Free / Open Source model with No auth required . If environment variables are required (such as API keys), be sure to define them under the env key in your MCP client's configuration file.

Can I run both Inbox Zero and Sendifai at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both elie222-inbox-zero and sendifai as distinct keys inside the single mcpServers object in your configuration file. Your AI assistant will automatically select and call the appropriate tool from either server during chat sessions.

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, Inbox Zero has a Quality Score of 57 /100 ( Good ) with 1 views, 0 installs, and 11,944 GitHub stars. Sendifai holds a Quality Score of 27 /100 ( Emerging ) with 0 views, 0 installs, and 0 GitHub stars.

Inbox Zero vs Sendifai — MCP Server Comparison

Feature & Specification Comparison

Specification	Inbox Zero elie222 Communication	S Sendifai Communication
Summary	An MCP server for Inbox Zero. Adds functionality on top of Gmail like finding out which emails you need to reply to or need to follow up on.	CRM, mass email/SMS, pastoral care, giving, events for churches & nonprofits. 134+ MCP tools.
Category & Scope	Communication	Communication
Quality signal	57/100 (Good)	27/100 (Emerging)
Transport Protocol	Local Subprocess (stdio)	Local Subprocess (stdio)
Auth Requirement	OAuth 2.0	No auth required
Pricing Model	Freemium	Free / Open Source
Required Env Vars	`GOOGLE_CLIENT_IDGOOGLE_CLIENT_SECRETMICROSOFT_CLIENT_IDMICROSOFT_CLIENT_SECRETGOOGLE_BASE_URLMICROSOFT_BASE_URL`	None required
Compatible Clients	Claude DesktopCursorWindsurfClineVS Code	Claude DesktopCursorWindsurfClineVS Code
Install path signal	`npx · high`	`npx · low`
Engagement & Health	1 views 0 copies 0 upvotes 11,944 stars	0 views 0 copies 0 upvotes
Verified / Official	Community Listing	Community Listing
Open full listing	View Inbox Zero Listing	View Sendifai Listing

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).

Inbox Zero Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "elie222-inbox-zero": {
      "command": "npx",
      "args": [
        "-y",
        "@inbox-zero/cli"
      ],
      "env": {
        "GOOGLE_CLIENT_ID": "YOUR_GOOGLE_CLIENT_ID_HERE",
        "GOOGLE_CLIENT_SECRET": "YOUR_GOOGLE_CLIENT_SECRET_HERE",
        "MICROSOFT_CLIENT_ID": "YOUR_MICROSOFT_CLIENT_ID_HERE",
        "MICROSOFT_CLIENT_SECRET": "YOUR_MICROSOFT_CLIENT_SECRET_HERE",
        "GOOGLE_BASE_URL": "YOUR_GOOGLE_BASE_URL_HERE",
        "MICROSOFT_BASE_URL": "YOUR_MICROSOFT_BASE_URL_HERE"
      }
    }
  }
}

Sendifai Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "sendifai": {
      "command": "npx",
      "args": [
        "-y",
        "sendifai"
      ]
    }
  }
}

Inbox Zero vs Sendifai

At a Glance & Executive Verdict

Which MCP Server Should You Choose?

Choose Inbox Zero when:

Choose Sendifai when:

Feature & Specification Comparison

Tools & Capabilities Breakdown

Inbox Zero Tools (6)

Sendifai Tools (0)

Ready-to-Paste Client Configurations

Frequently Asked Questions

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