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Polarity MCP Server

local only

Polarity runs on your own machine — the client starts it, so there is no endpoint to ping. 55 installs a week from npm.

Real-time threat intelligence lookups and IOC parsing from your self-hosted Polarity instance.

Installs per day peak 18 · avg 4 · +34% w/w
a month agotoday
55
Installs / week
npm · @polarityio/mcp-connector
—
Stars
on GitHub
—
Last commit
no releases in 90 days
—
License
language unknown

Nothing serious here today

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

Three servers free · no card

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.

run in your terminal
claude mcp add polarity-mcp -- npx -y @polarityio/mcp-connector
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "polarity-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@polarityio/mcp-connector"
      ]
    }
  }
}
~/.codex/config.toml
[mcp_servers.polarity-mcp]
command = "npx"
args = ["-y", "@polarityio/mcp-connector"]
.cursor/mcp.json
{
  "mcpServers": {
    "polarity-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@polarityio/mcp-connector"
      ]
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "polarity-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@polarityio/mcp-connector"
      ]
    }
  }
}

Optional settings from the registry entry, left out of the block above: POLARITY_SERVER_URL (The base URL of your Polarity server, e.g. https://polarity.yourcompany.com), POLARITY_TOKEN (A Polarity API key. Generate one in Polarity under Settings > API Keys), POLARITY_IGNORE_SSL (Set to 'true' if your Polarity server uses a self-signed certificate), POLARITY_TIMEOUT_MS (Timeout in milliseconds for Polarity API requests. Defaults to 30000 (30 seconds). Increase for slow integrations).

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Polarity — questions

Answers built from our own checks of this server.

Why is there no uptime for Polarity?
Polarity 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 @polarityio/mcp-connector was installed 55 times last week.
How do I connect Polarity?
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 @polarityio/mcp-connector straight from npm; nothing to host, nothing to sign up for.
How many people use Polarity?
The npm package @polarityio/mcp-connector was installed 55 times in the last week. Week over week that is +34%. We show installs rather than GitHub stars on purpose: a star is a bookmark, an install is someone actually running it.