The CatchUI MCP server,
connected in one click.
What is this UI element called? 50 curated UI patterns, names per platform, build prompts. EN/中文. Connect the official CatchUI MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add CatchUI to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http catchui https://catchui.com/api/mcpRun in your terminal, then restart Claude Code.
CatchUI · https://catchui.com/api/mcp
What your AI can do with CatchUI
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “search_ui_patterns”: Finds the conventional name of a UI element or design pattern from a plain-language description, question or term — e.g. "the bar at the bot.”
“Use “get_ui_pattern”: Returns the full CatchUI entry for one UI pattern by id (e.g. "tabbar", "bottomsheet"): definition in English and Chinese, pronunciation, al.”
“Use “list_ui_patterns”: Lists the 50 UI patterns in CatchUI's curated catalog — ids, English and Chinese names and one-line definitions — grouped by family, optiona.”
“Use “compare_ui_patterns”: Explains how 2 to 4 easily confused UI patterns differ — e.g. toast vs snackbar, modal vs popover vs bottom sheet, tabs vs segmented control.”
How secure is the CatchUI MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how CatchUI holds up.
Security grade A
gate scanned 6 tools on Oct 11, 2026 for prompt injection and risky tool definitions — nothing to flag.
Official endpoint
Operated by CatchUI (catchui.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If CatchUI adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick CatchUI
Choose CatchUI in the gate directory. No sign-in needed.
Use it anywhere
CatchUI's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools CatchUI exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
search_ui_patterns — Finds the conventional name of a UI element or design pattern from a plain-language description, question or term — e.g. "the bar at the bot
get_ui_pattern — Returns the full CatchUI entry for one UI pattern by id (e.g. "tabbar", "bottomsheet"): definition in English and Chinese, pronunciation, al
list_ui_patterns — Lists the 50 UI patterns in CatchUI's curated catalog — ids, English and Chinese names and one-line definitions — grouped by family, optiona
compare_ui_patterns — Explains how 2 to 4 easily confused UI patterns differ — e.g. toast vs snackbar, modal vs popover vs bottom sheet, tabs vs segmented control
get_ui_component_names — Returns what a UI pattern is called in code on each platform — SwiftUI, UIKit, Jetpack Compose, Android Views, Flutter, HTML/ARIA and, for s
get_implementation_prompt — Returns CatchUI's ready-to-use implementation instructions for 1 to 6 UI patterns — what to build, where it sits, its states and the accessi
Who runs the CatchUI MCP server?
The CatchUI MCP server at a glance
https://catchui.com/api/mcpQuestions, answered
Is there an official CatchUI MCP server?
Yes — CatchUI operates its own remote MCP server at catchui.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect CatchUI to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick CatchUI in the directory. No account or sign-in is needed. From then on, CatchUI's tools are available in every client you've connected to gate.
Do I need to host anything?
No. CatchUI runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the CatchUI MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect CatchUI in minutes. No credit card required.
Connect more than just CatchUI
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up CatchUI in: Claude · Claude Code · ChatGPT · Cursor · VS Code