01What Reverse Engineer Anything MCP Is and How It Works

Reverse engineer anything MCP is a free plugin that allows you to take any website, app, or feature and figure out how to build it yourself. You connect it to Hermes agent using the MCP protocol, and then you can ask the agent to recreate what you see. The plugin inspects the target site, extracts the rules and logic behind it, and hands that information to Hermes agent so it can build a new version for you.

In this episode, Julian shows how you can give the plugin a link to a calendar app, and within moments Hermes agent creates a working local copy with all the same features. The whole process runs inside your agentic operating system, and you can preview the result in your browser.

02Main Features of Reverse Engineer Anything MCP

  • Free to use – no payment required for the plugin, Hermes agent, or the AI models.
  • One-click install inside Hermes desktop or via a terminal command.
  • Works with any AI agent that supports MCP, not only Hermes agent.
  • Creates local builds – the app runs on your own machine so you can test it immediately.
  • Breaks down the rules – the plugin explains why something works the way it does, not just how to copy it.
  • Lets you rebuild a simpler or more beautiful version of any website or feature you like.

03How to Set Up Reverse Engineer Anything MCP

  1. Open Hermes desktop and go to the plugin catalog.
  2. Find reverse engineer anything MCP in the catalog and click the one-click install button.
  3. Alternatively, copy the terminal command from the plugin page and paste it into your terminal.
  4. If you prefer, open the plugin link directly inside Hermes agent by using the prompt: "Install reverse engineer anything MCP."
  5. Wait for the confirmation that the plugin is installed and active in your agentic operating system.

Once installed, the plugin stays ready inside Hermes agent so you can use it immediately without repeating the setup.

04How to Use It to Reverse Engineer Any App

After the plugin is installed, you give Hermes agent a clear prompt. For example: "Use REA to reverse engineer this calendar app and rebuild a simpler more beautiful version for me." Include the direct link to the app you want to reverse engineer.

Hermes agent then inspects the site, identifies its rules and structure, and creates a local copy. Julian demonstrates this with a calendar scheduler: the rebuilt version lets you switch between days, filter calls by type (onboarding, marketing, team, sales), and create new appointments. Everything works inside a localhost preview.

You can also use the plugin to understand features. For a game that gets faster over time, you can prompt: "Use REA to inspect this game, explain the rules, then build a small version with adjustable speed." The plugin will recreate the game with the adjustable control.

05Results and Comparisons Shown in the Episode

Julian shows a live demo of the calendar app built with reverse engineer anything MCP. The app runs on localhost, switches between days, and filters call types correctly. The plugin also broke down the rules behind the original app, listing them in plain text such as: "the weekend days use a sidebar."

Another example is a calculator app where the percentage button was rebuilt. The plugin found both rules and recreated them. The GitHub repository for reverse engineer anything MCP has 293,000 stars, showing massive community interest.

Julian notes that by itself Hermes agent is not great at coding, but combined with reverse engineer anything MCP it becomes much more powerful.

06Tips, Limits and Mistakes to Avoid

  • Make sure the plugin is fully installed before giving it a prompt – check the confirmation in your agentic operating system.
  • Use a free model like DeepSeek v4.1 Flash to keep the entire system cost-free. Models like Step 5, Catjam, and Nemotron 3.5 Super VL also work.
  • The output is moldable – you can change the design, animations, text, or any feature after the build is done.
  • If the plugin doesn't work at first, try installing it through the terminal command rather than the catalog.
  • For complex apps, the result may need manual tweaks – test it inside the agentic OS before assuming it is perfect.

07Who It Is For and Why It Matters

Reverse engineer anything MCP is for anyone who wants to build apps without writing code from scratch. It helps founders, designers, and makers recreate features they like in existing apps and adapt them to their own projects. Because the plugin, Hermes agent, and the AI models are all free, there is no financial barrier to start.

This system turns idea validation into a quick local build. You can test a feature in minutes instead of days. Julian points out that the same workflow can be extended to build an app gallery inside the agentic operating system, making it even easier to preview everything you create.

08How to Combine Reverse Engineer Anything MCP with Hermes Agent

To get the full system, Julian recommends accessing the agentic operating system through the Ar Pro for Boardroom membership. That setup includes Hermes agent, Claude, open code, and reverse engineer anything MCP preconfigured. Inside the community, you can ask questions and get personalized video tutorials.

The system also includes daily training updates, weekly coaching calls, and a map to meet other creators near you. If you want to install everything yourself, the files are available inside the Ar Pro for Boardroom classroom.

In a future update, Julian plans to add an app builder section inside the agentic operating system so that every app you create with reverse engineer anything MCP is instantly previewable in one place.