Green API WhatsApp vs Outlook Assistant

In-depth architectural comparison of the Green API WhatsApp and Outlook Assistant 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 Green API WhatsApp when:

• You need dedicated capabilities in the Communication domain.
• You prefer remote streaming HTTP/SSE transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: whatsapp_send_message, whatsapp_send_file, whatsapp_send_location.

Explore Green API WhatsApp Details

Choose Outlook Assistant 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: Email search with conversation threading and batch actions, Email sending with dry-run previews and recipient allowlist, Export emails in Markdown, EML, JSON, CSV, MBOX, or HTML formats.

Feature & Specification Comparison

Specification	Green API WhatsApp Communication	Outlook Assistant littlebearapps Communication
Summary	MCP gateway for WhatsApp via Green API: messaging, contacts, groups and instance management.	Ask your AI assistant to search your inbox, send emails, schedule meetings, manage contacts, and configure mailbox settings — without leaving the conversation. Works with Claude, Cursor, Windsurf, and any MCP-compatible client.
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": {
    "green-api-whatsapp": {
      "url": "https://green-api.com/en/docs/integration/mcp/integration-setup/"
    }
  }
}

{
  "mcpServers": {
    "littlebearapps-outlook-assistant": {
      "command": "npx",
      "args": [
        "-y",
        "@littlebearapps/outlook-assistant"
      ]
    }
  }
}

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