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Open Components

by uxfront-comversion 1.0.0i★ –iRuns in the cloud
Registry namecom.uxfront/open-components

Install

Overview

Description from the maker (original English)

Guidelines for UI components with a perfect UX, DX and AX, whether humans or AI agents write them.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on the maker’s server: what you ask it goes through their server.
  • The registry lists no key to fill in.

You need

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://mcp.opencomponents.dev/mcp

Run this in your terminal

claude mcp add --transport http open-components https://mcp.opencomponents.dev/mcp

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "open-components": {
      "url": "https://mcp.opencomponents.dev/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "open-components": {
      "type": "http",
      "url": "https://mcp.opencomponents.dev/mcp"
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://mcp.opencomponents.dev/mcp

Menu names can differ slightly by plan and over time.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

We have not read this server’s tool list yet; we check endpoints in rotation.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain uxfront.com (the registry checks domain ownership)

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • … Not checked yet

    Endpoint responds

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    Sign-in with OAuth

    Not checked yet; we check endpoints in rotation

  • … Not checked yet

    No hidden instructions in tool descriptions

    Not checked yet; we read the tool list when we check the endpoint

Compared with others in Otheri

  • More stars than 0% of the other 32435 servers in this category
  • Published to the registry more recently than 59% of the other 32435 servers in this category
  • Basic checks equal to or better than 100% of the other 32435 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Open Components safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 27 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Apify MCP Server

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Spec Driven Development

by formulahendry

MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.

Runs on your computer★ 440MITUpdated 14 months ago
Install

Remote Desktop Commander

by desktop-commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

Runs in the cloud★ 211Updated yesterday
Install

Extract data from any website with thousands of scrapers, crawlers, and automations on Apify Store ⚡

Runs in the cloudUpdated today
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Open Components

Open Components is the standard for perfect UI components: guidelines for building UI components with a perfect user experience, developer experience and agentic experience, whether humans or AI agents write them.

Open Components is part of UXFront , written and maintained by @alexgrozav .

Homepage · Documentation · Changelog · llms.txt · Issue Tracker

Table of contents

  • The standard
  • Reading the standard
  • For agents
  • Bugs and feature requests
  • Contributing
  • Creator
  • Copyright and license

The standard

The standard has three layers, one for each audience a component serves. A component meets the standard when it meets all three.

  • User experience (UX): components behave the way people expect them to, with any input, on any device and for every ability. _Accessible, predictable, every state, adaptive._
  • Developer experience (DX): one clear API, learned once and used everywhere. Knowing one component means knowing them all. _Consistent, type-safe, composable, controllable._
  • Agentic experience (AX): components that AI agents can read, reason about and build with, so their output meets the same bar as yours. _Semantic, described, deterministic, verifiable._

Learn the guidelines once, then hold every component to the same high standards, whether you or your agents write it.

Reading the standard

Start with the Introduction, which walks through the three layers and what each one asks of a component. The guidelines live as markdown in content/docs/, so you can also read them right here on GitHub.

For agents

If your agent supports MCP, connect it to our MCP server at https://mcp.opencomponents.dev/mcp, free and with no sign-in. It gives agents the contracts, every rule and the docs a section at a time, as tools. The MCP Server page shows how to connect Claude, Codex, Cursor, VS Code, Gemini CLI, Grok, Hermes Agent and other clients.

Or install our agent plugin, in plugins/open-components, which connects the same server along with skills that build and review components the way the standard asks. It's an Agent Plugin, so it works in VS Code, GitHub Copilot, Cursor, Codex, Claude Code and other clients that support the format. The Agent Plugin page shows how to install it.

Every page of the documentation is also published as markdown, so agents can read the standard and check their work against it:

  • https://opencomponents.dev/raw/ .md holds one page, as in /raw/docs/getting-started/introduction.md for the introduction.
  • https://opencomponents.dev/raw/ .yaml holds a page's contract, with every rule from its checklist, as in /raw/docs/components/button.yaml. It's every requirement in a fraction of the page's length.
  • /schemas/contract.json is the JSON Schema every contract follows, so you can validate them, and contracts of your own. Each contract names it on its first line, so editors that use the YAML language server check it as you type.
  • /llms.txt lists every page and every contract.
  • /llms-full.txt holds them all in one file. Point your agent at it to give it the whole standard in one request.

Bugs and feature requests

Found a bug on the site, a gap in the guidelines or an idea for a new one? Please first search for existing and closed issues. If your problem or idea is not addressed yet, please open a new issue.

Contributing

Please read through our contributing guide. There you can find how to run the site locally, edit the guidelines and deploy. Everyone taking part in the project agrees to follow our Code of Conduct.

Thanks goes to these wonderful people!

Creator

Alex Grozav

If you use Open Components in your daily work and feel that it has made your life easier, please consider sponsoring me on GitHub Sponsors. 💖

Copyright and license

Copyright © 2026 UXFront. The site code is released under the MIT License. The guidelines in content/ and the agent plugin in plugins/open-components/ are released under the Creative Commons Attribution 4.0 License: you can share and adapt them, commercially too, as long as you credit Open Components.

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