Abnormal Security MCP vs M365 Graph MCP

In-depth architectural comparison of the Abnormal Security MCP and M365 Graph 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.

Which MCP Server Should You Choose?

Choose Abnormal Security 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).

Explore Abnormal Security MCP Details

M

Choose M365 Graph MCP 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).

Explore M365 Graph MCP Details

Feature & Specification Comparison

Specification	Abnormal Security MCP Communication	M M365 Graph MCP Communication
Summary	Abnormal Security email threats, cases, and reporting in your terminal and your AI agents.	Manage Microsoft 365 email, calendar, contacts and inbox rules via the Graph API with OAuth 2.0.
Category & Scope	Communication	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": {
    "abnormal-security-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "skills"
      ]
    }
  }
}

{
  "mcpServers": {
    "m365-graph-mcp": {
      "url": "https://gitlab.com/eguardian1/m365-graph-mcp"
    }
  }
}

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