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HorizonX — Premium UI Library
Overview
Description from the maker (original English)
Animated UI components, shaders, templates and UI kits from HorizonX, exported into your code
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi3 of 3 passedChecked from public information; code not scanned yet
- UsageiVery new★ –
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.
- Connection: Runs in the cloud
- Transport: Streamable HTTP
- Category: Developer tools
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 3 of 3 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
- Runs in the cloudNothing to install; it connects over the internet
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:
- Open Settings → Connectors
- Press Add custom connector
- Paste the address below and press Add
- If it asks you to sign in, sign in with the maker
https://horizonx.so/api/mcpRun this in your terminal
claude mcp add --transport http horizonx https://horizonx.so/api/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"horizonx": {
"url": "https://horizonx.so/api/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.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"horizonx": {
"type": "http",
"url": "https://horizonx.so/api/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:
- Open ChatGPT on the web → Settings → Connectors (Apps)
- Press Create or Add (some plans need Developer mode under Advanced first)
- Paste the address below, give it a name and save
- If it asks you to sign in, sign in with the maker
https://horizonx.so/api/mcpMenu 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
The server asks you to sign in before it lists its tools.
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 9, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account Mdx2025, which owns the repo
- … 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
- ✓ Pass
Endpoint responds
Responded in 461 ms (HTTP 401)
- ✓ Pass
Sign-in with OAuth
Declares OAuth sign-in, so your AI app can take you to log in
- … 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 Developer toolsi
- More stars than 0% of the other 5571 servers in this category
- Published to the registry more recently than 58% of the other 5571 servers in this category
- Basic checks equal to or better than 100% of the other 5571 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 HorizonX — Premium UI Library safe?
It passed 3 of 3 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 (0.1.1) reached the registry 20 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: GitHub, Desktop Commander, Cloudflare MCP
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
Desktop Commander
MCP server for terminal commands, file operations, and process management
Runs on your computer
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.
HorizonX plugin for AI coding agents
Search HorizonX in plain language and drop the result straight into your code: animated UI components, device mockups, image textures and WebGL shaders exported as HTML, Svelte or React, plus landing pages, UI kits, design systems, 3D models and open-source icon libraries as files.
The plugin bundles two things:
- The HorizonX MCP server (
https://horizonx.so/api/mcp). You sign in with your HorizonX account the first time your agent uses it; there is no key to copy. - The `horizonx` skill, which teaches the agent the workflow: search, inspect the parameters, export in your project's framework and place the file where similar components live.
An active HorizonX membership is required.
Install
Claude Code
/plugin marketplace add Mdx2025/horizonx-agent-plugin/plugin install horizonx@horizonx
Then run /mcp, pick horizonx and sign in.
Codex
codex plugin marketplace add Mdx2025/horizonx-agent-plugincodex plugin add horizonx@horizonx codex mcp login horizonx
Cursor
Cursor reads this plugin as an Agent Plugin. Until it is listed in the Cursor Marketplace, copy plugins/horizonx to ~/.cursor/plugins/local/horizonx, reload the window and sign in when Cursor asks. To add only the MCP server, use the Add to Cursor button on horizonx.so/mcp.
Gemini CLI
gemini extensions install https://github.com/Mdx2025/horizonx-agent-pluginClaude.ai and ChatGPT
HorizonX is listed in the Claude connectors directory and in ChatGPT apps. Open the listing, connect it and sign in with your HorizonX account.
Any other MCP client
horizonx.so/mcp has the setup for VS Code, Windsurf, Gemini CLI, Claude.ai, ChatGPT and others.
Try it
- "Use HorizonX to add an animated hero background to this page."
- "Use HorizonX to find a before-and-after image slider and add it as a React component."
- "Use HorizonX to find a SaaS landing page template."
- "Use HorizonX to build this dashboard in the style of a HorizonX design system, following its DESIGN.md."
Layout
.claude-plugin/marketplace.json Claude Code marketplace.agents/plugins/marketplace.json Codex marketplace .cursor-plugin/marketplace.json Cursor marketplace (points at plugins/horizonx) gemini-extension.json Gemini CLI extension (MCP server only) server.json Official MCP Registry entry plugins/horizonx/ plugin.json, mcp.json Agent Plugins manifest (Codex, Cursor, OpenAI listing and review cases) .claude-plugin/plugin.json, .mcp.json Claude Code manifest skills/horizonx/SKILL.md The skill README.md Tools and the data the plugin sends assets/icon.png
mcp.json has no extensions["com.openai"].auth block on purpose: Codex 0.163.0 drops a plugin MCP server that carries any extensions key. Codex discovers HorizonX's OAuth from the server, so nothing is lost.