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License Compliance

@bighippomanMCP server · External

Scan npm dependencies for license compliance issues. Catch GPL contamination.

v1.0.2MITTypeScript
Freeno charge per call

Runs on your machine from its package; the steps are below.

What it does

  1. Reads
  2. Writes
  3. High impact

At most: only reads or looks up information.

What it costs

Free

Odel charges nothing per call. The publisher may charge for its own service.

Runs locally over stdio

This server isn't hosted — your MCP client launches it from a package registry. Use one of the commands below, or drop the config into your client (e.g. Claude Desktop).

npmlicense-compliance-mcpv1.0.2

Run

npx -y license-compliance-mcp

MCP client config

{
  "mcpServers": {
    "license-compliance": {
      "command": "npx",
      "args": [
        "-y",
        "license-compliance-mcp"
      ]
    }
  }
}
README1 min read

license-compliance-mcp

MCP server that scans npm project dependencies for license compliance issues. Catch GPL contamination before code ships.

Tools

check-licenses

Scan a project's npm dependencies against a license policy and get a detailed compliance report.

Parameters:

  • path (required) — Absolute path to the project root
  • policy (optional, default: "permissive") — Policy preset or custom SPDX expression
    • "permissive" — Only MIT, ISC, BSD, Apache-2.0, etc.
    • "weak-copyleft" — Adds LGPL, MPL-2.0, EPL-2.0
    • "copyleft" — Adds GPL, AGPL
    • Custom: "(MIT OR Apache-2.0)" — Any valid SPDX expression

explain-license

Get a plain-language explanation of any SPDX license — permissions, conditions, limitations, compatibility, and gotchas.

Parameters:

  • license (required) — SPDX identifier (e.g., "MIT", "GPL-3.0-only", "Apache-2.0")

Install

Claude Code

bash
claude mcp add license-compliance -- npx -y license-compliance-mcp

Claude Desktop / Cursor

Add to your config (claude_desktop_config.json or .cursor/mcp.json):

json
{
  "mcpServers": {
    "license-compliance": {
      "command": "npx",
      "args": ["-y", "license-compliance-mcp"]
    }
  }
}

How It Works

  1. Scans node_modules using license-checker-rseidelsohn
  2. Normalizes license strings to valid SPDX using spdx-correct
  3. Evaluates each package against the policy using spdx-satisfies
  4. Traces dependency chains to show how problematic packages entered the project
  5. Generates a markdown report grouped by severity (critical > warning > info)

Requirements

  • Node.js >= 18
  • Project must have node_modules installed (npm install)

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