What is the key difference between Sendmux Sdk and Inbox Zero?

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

How do I install Sendmux Sdk or Inbox Zero 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 Sendmux Sdk and Inbox Zero free or paid?

Sendmux Sdk operates under a Freemium model (OAuth 2.0). Inbox Zero operates under a Freemium model (OAuth 2.0).

Which MCP server has more tools and community activity?

Sendmux Sdk lists 5 tools with 2 views and 73 GitHub stars. Inbox Zero lists 6 tools with 1 views and 12,211 GitHub stars.

Can I use both Sendmux Sdk and Inbox Zero 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

Sendmux Sdk vs Inbox Zero

In-depth architectural comparison of the Sendmux Sdk and Inbox Zero 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

Sendmux Sdk

Communication · Local stdio

Quality: 47/100 (Fair) | Auth: OAuth 2.0

Inbox Zero

Communication · Local stdio

Quality: 55/100 (Good) | Auth: OAuth 2.0

Verdict Summary: Choose Sendmux Sdk if you need specialized Communication tools running via a local process. Choose Inbox Zero 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 Sendmux Sdk when:

You need dedicated capabilities in the Communication domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: OAuth 2.0 (Freemium).
You have access to required keys: SENDMUX_OAUTH_CLIENT_ID, SENDMUX_OAUTH_CLIENT_SECRET, SENDMUX_API_KEY.
Primary tools included: Supports Sendmux hosted and local MCP deployments, Provides mailbox API for email retrieval and search, Supports sending emails via Sendmux sending API.

Explore Sendmux Sdk Details

Choose Inbox Zero when:

You need dedicated capabilities in the Communication domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: OAuth 2.0 (Freemium).
You have access to required keys: GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET, MICROSOFT_CLIENT_ID, MICROSOFT_CLIENT_SECRET, GOOGLE_BASE_URL, MICROSOFT_BASE_URL.

Feature & Specification Comparison

Specification	Sendmux Sdk Sendmux Communication	Inbox Zero elie222 Communication
Summary	Email inbox API MCP server for AI agents to receive, search, and send mail through hosted or local Sendmux Product MCP.	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.
Category & Scope	Communication

Tools & Capabilities Breakdown

Sendmux Sdk Tools (5)

Supports Sendmux hosted and local MCP deployments

Provides mailbox API for email retrieval and search

Supports sending emails via Sendmux sending API

Uses OAuth for hosted MCP authentication

Supports API key authentication for local MCP

Inbox Zero Tools (6)

AI personal assistant for inbox organization and reply drafting

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).

Sendmux Sdk Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "sendmux-sendmux-sdk": {
      "command": "uvx",
      "args": [
        "sendmux-core"
      ],
      "env": {
        "SENDMUX_OAUTH_CLIENT_ID": "YOUR_SENDMUX_OAUTH_CLIENT_ID_HERE",
        "SENDMUX_OAUTH_CLIENT_SECRET": "YOUR_SENDMUX_OAUTH_CLIENT_SECRET_HERE",
        "SENDMUX_API_KEY": "YOUR_SENDMUX_API_KEY_HERE"
      }
    }
  }
}

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"
      }
    }
  }
}

Frequently Asked Questions

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

More alternatives to Sendmux Sdk More alternatives to Inbox Zero Communication category hub Canonical compare URL