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Start here: rights checks for vibe coders

Ask "can I use this image, font, song or package in my app?" from Cursor, Claude, ChatGPT or VS Code. One-click install, a one-line project scan, free with no signup.

1. Scan your project

Run this in your project folder. Nothing to install; only license names leave your machine.

curl -fsSL https://www.rightshold.com/check.mjs | node -

2. Add it to your AI editor

Claude Code

claude mcp add --transport http rightshold https://www.rightshold.com/mcp

Claude Desktop / claude.ai

Settings > Connectors > Add custom connector > URL: https://www.rightshold.com/mcp

Windsurf (~/.codeium/windsurf/mcp_config.json)

{
  "mcpServers": {
    "rightshold": {
      "serverUrl": "https://www.rightshold.com/mcp"
    }
  }
}

Grok (grok.com)

grok.com/connectors > New Connector > Custom, then MCP server URL: https://www.rightshold.com/mcp (no auth)

Grok Build (terminal)

grok mcp add --transport http rightshold https://www.rightshold.com/mcp

Grok / xAI API (Responses, remote MCP)

{
  "model": "grok-4",
  "input": "Can I use the MIT-licensed package left-pad in a commercial app?",
  "tools": [
    {
      "type": "mcp",
      "server_url": "https://www.rightshold.com/mcp",
      "server_label": "rightshold",
      "server_description": "License and rights checks for AI agents"
    }
  ]
}

ChatGPT (developer mode)

Settings > Apps & Connectors > Advanced > Developer mode, then Create > MCP server URL: https://www.rightshold.com/mcp (no auth)

Gemini CLI / any MCP client

npx -y mcp-remote https://www.rightshold.com/mcp

3. Teach your AI to check first

Paste into .cursorrules, CLAUDE.md or AGENTS.md:

## Rights and licenses (Rightshold)
Before adding a dependency, image, font, icon, audio, video or dataset to this project, check its license for how
we will use it (commercial app, modified, redistributed, AI training). Use the Rightshold MCP tool check_license
(server https://www.rightshold.com/mcp, no key needed) or POST https://www.rightshold.com/v1/licenses/check with
{"license":"<SPDX id>","intended_use":{"commercial_use":true}}. If the verdict is not "permitted", or the source
has no license, stop and tell me instead of adding it. Record where every asset came from in ASSETS.md.

Things to ask

• Can I use this Google Font in my paid app?
• Is every npm package in this project OK for commercial use?
• I found this image on Unsplash. Can I put it on my landing page?
• Can I use a CC BY-NC song in my YouTube ad?
• Is GPL code OK in my closed-source SaaS?

No editor? One curl

curl -s https://www.rightshold.com/v1/licenses/check -H 'content-type: application/json' -d '{"license":"CC-BY-NC-4.0","intended_use":{"commercial_use":true}}'

Clean project? Show it

[![rights checked: Rightshold](https://www.rightshold.com/badge.svg)](https://www.rightshold.com/start)

Can I use it? Answers by license · Fonts · Common questions · Developer quickstart