Doubletick Cli vs Sendmux Sdk

In-depth architectural comparison of the Doubletick Cli and Sendmux Sdk 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.

Which MCP Server Should You Choose?

Choose Doubletick Cli when:

• You need dedicated capabilities in the Communication domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: OAuth 2.0 (Freemium).
• Primary tools included: send_tracked_email, check_tracking_status, list_tracked_emails.

Explore Doubletick Cli Details

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.

Feature & Specification Comparison

Specification	Doubletick Cli cseguinlz Communication	Sendmux Sdk Sendmux Communication
Summary	Email read tracking via Gmail. Send tracked emails, check if they were opened with open count, device, and timing.	Email inbox API MCP server for AI agents to receive, search, and send mail through hosted or local Sendmux Product MCP.
Category & Scope	Communication

Tools & Capabilities Breakdown

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).

{
  "mcpServers": {
    "cseguinlz-doubletick-cli": {
      "command": "npx",
      "args": [
        "-y",
        "doubletick-cli"
      ]
    }
  }
}

{
  "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"
      }
    }
  }
}

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