MCP Inspector Desktop

A ~80-line Electron shell around the official MCP Inspector. It launches the real Inspector and renders it in a window with webSecurity: false, so the UI can talk directly to a remote (cloud) MCP server from localhost without browser CORS blocking the request.

Same UI, same features as npx @modelcontextprotocol/inspector — just no CORS enforcement, and nothing has to change on the server.

Run

npx mcp-inspector-desktop

A desktop window opens with the Inspector. Then:

1. Transport: Streamable HTTP
2. URL: your MCP server endpoint, e.g. https://<your-mcp-server-host>/path/to/api/v1/mcp
3. Add any headers your server requires (Authentication tab / custom headers), e.g. authorization: Bearer <token> plus any tenant/device headers.
4. Connect → list tools / call tools as usual.

Notes / safety

• webSecurity: false + --disable-web-security are intentional and apply only to this app. It's a dev tool — don't use it to browse the web.
• The Inspector is pulled via npx -y @modelcontextprotocol/inspector on first launch, so you always get the current version. (Set CLIENT_PORT env var to change the UI port; defaults to 6274.)
• Quitting the window also stops the spawned Inspector process.