Is PopUI safe to use?

PopUI has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.

How do I install PopUI?

PopUI can be installed by cloning its GitHub repository and following the setup instructions in the README.

What AI clients work with PopUI?

PopUI is compatible with claude-desktop, cursor, claude-code. It uses sse transport.

Is PopUI actively maintained?

PopUI is not actively maintained — last commit was 426 days ago. It has 8 GitHub stars.

PopUI

Name: PopUI
Author: kelnishi

by kelnishi

Enables Collaborative UX in Claude Desktop

8 GitHub

No known CVEs

No license

Stale

Last commit 426d ago

Works with most clients

Transport: sse

0 tools

Grade F

Edit this pageView history

Developer Tools AI / ML

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopsse · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "popui": {
      "command": "<see-readme>",
      "args": []
    }
  }
}

Are you the author?

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[![MCPpedia Score](https://mcppedia.org/api/badge/popui)](https://mcppedia.org/s/popui)

Read me

What PopUI does

PopUI is a companion desktop app for macOS that gives Claude Desktop new tools.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

24/100across 5 weighted dimensions

How we score →

0255075100

−76

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is PopUI safe to use?: PopUI has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install PopUI?: PopUI can be installed by cloning its GitHub repository and following the setup instructions in the README.
What AI clients work with PopUI?: PopUI is compatible with claude-desktop, cursor, claude-code. It uses sse transport.
Is PopUI actively maintained?: PopUI is not actively maintained — last commit was 426 days ago. It has 8 GitHub stars.

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Community

Discussion

Start a conversation

Ask a question, share a tip, or report an issue.

Has anyone used this with Cursor?How do you handle auth?Any alternatives?

Edit this pageView history

Developer Tools AI / ML

Step 1

Install in your client

Config is the same across clients — only the file and path differ.

Supported in Claude Desktopsse · Node 18+

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "popui": {
      "command": "<see-readme>",
      "args": []
    }
  }
}

Are you the author?

Add this badge to your README to show your security score and help users find safe servers.

Embed in your READMEAbout badges →

[![MCPpedia Score](https://mcppedia.org/api/badge/popui)](https://mcppedia.org/s/popui)

Read me

What PopUI does

PopUI is a companion desktop app for macOS that gives Claude Desktop new tools.

Test This Server

No automated test available for this server. Check the GitHub README for setup instructions.

README

PopUI - Collaborative UX for Claude Desktop

Overview

PopUI is a companion desktop app for macOS that gives Claude Desktop new tools.

Leveraging Claude's ability to create user interfaces, PopUI creates a bi-directional bridge to a visual context.

Claude creates and automatically displays a user interface (similar to artifacts)
Claude can read changes done in the UI and use the UI as a visual context
Claude can also push changes to the UI, visually updating it for the user
The UI can send events and text back to chat, obviating the need for keyboard input in the loop

Collaborative UX

How is this different from Artifacts?

PopUI closes the interaction loop. While Claude Artifacts can generate interactive UI elements, any events or changes that happen in them are trapped outside of the chat conversation. With PopUI, Claude has tools to interrogate and manipulate the external state, allowing Claude to build further conversation on top of that shared context.

Realtime visual context

PopUI also gives the Claude and the user the ability to receive and manipulate visual context.

Some examples:

Instantly build control panels for tweaking and refining values in the chat
Talk to Claude about colors with a color picker with swatches.
Talk to Claude about a physical layout
Play turn-based games with Claude on a shared gameboard
Give Claude a sense of time with a real-time wall clock
Give Claude a literal face to express its emotions during the chat

Installation

Just download the latest release and launch the app.

Automatic SSE Proxy to Claude Desktop

PopUI provides all its dependencies to function, even the MCP gateway for Claude! The first time you launch PopUI, you'll be asked to install into Claude Desktop. After this, PopUI will be launched by Claude Desktop and automatically connected as an MCP server.

You can access all the created user interfaces from the settings window or from the menubar icon.

Sponsorship & Collaboration

PopUI was my MCP hackathon entry.

If you like it, please consider supporting me through sponsorship or work opportunities.

My Apple Developer membership cost $100/year 💸 Oh for codesign...

Sponsor me or connect with me on LinkedIn if you're interested in collaborating!

⭐Stars⭐ are always appreciated!

Loading README…

Scored, not listed

Why this score

Five weighted categories — click any category to see the underlying evidence.

Score breakdown

24/100across 5 weighted dimensions

How we score →

0255075100

−76

Security

Maintenance

Efficiency

Documentation

Compatibility

Categoriesclick a row to see evidence

Security

OSV.dev

No known CVEs.

No package registry to scan.

Community

Reviews

Be the first to review

Have you used this server?

Share your experience — it helps other developers decide.

How easy was setup?Did it work reliably?How was the documentation?

Frequently Asked Questions

Is PopUI safe to use?: PopUI has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
How do I install PopUI?: PopUI can be installed by cloning its GitHub repository and following the setup instructions in the README.
What AI clients work with PopUI?: PopUI is compatible with claude-desktop, cursor, claude-code. It uses sse transport.
Is PopUI actively maintained?: PopUI is not actively maintained — last commit was 426 days ago. It has 8 GitHub stars.