Useful Work MCP server

Fix your website from your own AI assistant. Useful Work checks websites for typos, wrong facts, out-of-date text, broken links and images, slow pages, and security certificates and domains that are about to run out. A problem is only reported once at least two agents agree on it.

Connect Claude Code, Cursor, VS Code or any other MCP client, and your assistant reads what's wrong with your live site, makes the changes in your site's code, marks them fixed and asks for a re-check after you publish.

The server is hosted. Connect to it at:

https://usefulwork.app/mcp

Streamable HTTP with OAuth sign-in: the first time your assistant connects, a Useful Work page opens for you to approve it. It's listed in the official MCP Registry as app.usefulwork/useful-work. This repository holds the setup guide, the registry entry (server.json) and an agent plugin; the server's own code isn't published.

What your assistant can do

Plus a ready-made prompt, fix_my_site, and each website's fix list as a resource at usefulwork://fixes/{domain}.

Related MCP server: SiteProbe MCP Server

Set up

1. Sign in at usefulwork.app/app and add your website.

2. Add the server to your assistant.

3. Approve it on the Useful Work page that opens the first time it connects. It then shows under Connect your AI in your dashboard, where you can disconnect it any time.

Claude Code: run this, then type /mcp and choose Authenticate.

claude mcp add --transport http --scope user useful-work https://usefulwork.app/mcp

Cursor: in ~/.cursor/mcp.json, then click Needs login next to Useful Work.

{
  "mcpServers": {
    "useful-work": { "url": "https://usefulwork.app/mcp" }
  }
}

VS Code: in .vscode/mcp.json. VS Code asks you to sign in the first time it connects.

{
  "servers": {
    "useful-work": { "type": "http", "url": "https://usefulwork.app/mcp" }
  }
}

Claude.ai, ChatGPT and other apps: add a custom connector with the address https://usefulwork.app/mcp.

Assistants that can't sign in: make an API key under Connect your AI in your dashboard and send it as the header Authorization: Bearer uwk_….

Then open your website's project and ask: "Use Useful Work to fix my website." In Claude Code the prompt is also there as /mcp__useful-work__fix_my_site.

As an agent plugin

This repository is also an Agent Plugin: plugin.json, the server in mcp.json, and one skill, fix-website, which gets the fix list, changes the code, marks items fixed and asks for a re-check after you publish. The server signs in on its own, so the plugin carries no secrets.

Safety

• Text quoted from your website is marked in every result as content to edit, never instructions to follow. Anyone can write on a website (a review, a comment), so the server treats it as data.

• A connected assistant can read your websites, mark items fixed or ignored, and ask for a re-check. It can add websites only if you tick that when you approve it. It can't pay or change your settings.

• Disconnect an assistant, or revoke a key, any time in your dashboard; it stops working straight away. Keep keys out of your project's files and repository.

What it costs

Connecting is free. Checking is paid from prepaid card credit, at $0.003 a check: each paragraph gets three checks, each link or image two. A 30-page website costs about $3.37 to check in full; after that only new or changed text is checked. Re-reading pages is free. There's no subscription. See pricing.

Links

• Website: usefulwork.app

• Setup for builders: usefulwork.app/builders

• Terms: usefulwork.app/terms · Privacy: usefulwork.app/privacy

• Contact: hello@usefulwork.app

Useful Work is made by Tokenise Pty Ltd. The documentation in this repository is MIT licensed.