Spdx Mcp

io.github.mrfentmenPublished by GitHub account mrfentmenv1.0.0Updated Nov 5, 2026

Use this MCP server to SPDX open source license metadata and compatibility helpers. Tools...

VerifiedSTDIODesktop onlyKnowledge & MemoryDeveloper Tools

Overview

AI-generated overview

Local MCP server that lets an assistant search the SPDX license list and look up metadata for exact license identifiers.

What you can do
  • Search SPDX license identifiers and names
  • Fetch metadata for an exact identifier such as MIT, Apache-2.0 or GPL-3.0-only
When to use it
Useful when reviewing dependency licenses, choosing a license for a project, or preparing open-source notices and needing quick SPDX reference data.
Requirements
Runs as a local stdio process installed from the npm package spdx-mcp; the README's run steps use npm install, a build step and node. No authentication, environment variables or headers are declared.
Before you install
It reports SPDX metadata only; it is not a legal opinion and does not perform full dependency license compatibility analysis, so licensing decisions should not rely on it alone. The public SPDX list is cached for the process lifetime, so results may be stale until restart.

Installation

In SourceWeft

  1. Open Spdx Mcp in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

spdx-mcp

Search the SPDX license list while reviewing dependencies, choosing project licenses, or preparing open-source notices.

Tools

  • search_licenses: search identifiers and license names.
  • get_license: fetch metadata for an exact identifier such as MIT, Apache-2.0, or GPL-3.0-only.

This server reports SPDX metadata. It is not a legal opinion and does not perform full dependency license compatibility analysis. The public SPDX list is cached for the process lifetime.

Run

bash
npm installnpm run buildnode dist/index.js

Source: README.md at commit 5d89422

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v1.0.0LatestSep 22, 2026

Score

40% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

    Declare a license in the repository or the registry entry.