Cwe MCP Server

by mrfentmen Your server? Claim it

local only

Cwe MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 528 installs a week from npm. Last commit 28 Oct 2026.

MITRE CWE weakness records: descriptions, mitigations, consequences and the weakness hierarchy.

Installs per day peak 253 · avg 17

a month agotoday

528

Installs / week

npm · @mrfentmen/cwe-mcp

Stars

0 open issues

28 Oct 2026

Last commit

from GitHub

—

License

TypeScript

Nothing serious here today

Today is the operative word: we check Cwe MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add cwe-mcp -- npx -y @mrfentmen/cwe-mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "cwe-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mrfentmen/cwe-mcp"
      ]
    }
  }
}

~/.codex/config.toml

[mcp_servers.cwe-mcp]
command = "npx"
args = ["-y", "@mrfentmen/cwe-mcp"]

.cursor/mcp.json

{
  "mcpServers": {
    "cwe-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@mrfentmen/cwe-mcp"
      ]
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "cwe-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@mrfentmen/cwe-mcp"
      ]
    }
  }
}

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Cwe MCP — questions

Answers built from our own checks of this server.

Why is there no uptime for Cwe MCP?

Cwe MCP runs on your own machine over stdio — there is no network address to reach, so uptime cannot be measured for it by anyone. What can be measured is adoption: the npm package @mrfentmen/cwe-mcp was installed 528 times last week.

How do I connect Cwe MCP?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It runs locally, so the command pulls @mrfentmen/cwe-mcp straight from npm; nothing to host, nothing to sign up for.

How many people use Cwe MCP?

The npm package @mrfentmen/cwe-mcp was installed 528 times in the last week. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.

Is Cwe MCP open source?

We cannot say either way: written in TypeScript and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.