# Catchui Ui Patterns MCP server

Source: https://glimind.com/server/mcp-registry%2Fcom.catchui%2Fui-patterns
Registry id: `mcp-registry/com.catchui/ui-patterns`
Status: live (checked 2026-10-27T01:26:08.601Z)

## Verdict

Catchui Ui Patterns MCP server answered 100% of Glimind's liveness checks over 30 days, better than 42% of MCP servers, with 174 ms median handshake and 0 outages in 90 days. Its agent-readiness grade is A (96/100) across 6 tools, costing an agent about 1,224 tokens to load. Checked every few minutes; no tool is ever called.

## Measurements (30 days)

| Metric | Value | Better than |
|---|---|---|
| Uptime, 30 days | 100% | 42% of MCP servers |
| Median handshake latency | 174 ms | 74% of MCP servers |
| p95 handshake latency | 2153 ms | — |
| Checks in 30 days | 3,298 | — |
| Outages, 90 days | 0 | — |
| Median recovery | — | — |
| Agent-readiness score | 96/100 (A) | 82% of MCP servers |
| Tools | 6 | — |
| Tool-list size for an agent | ~1,224 tokens | 66% of MCP servers |
| Days observed | 16 | — |

## Install

```json
{
  "mcpServers": {
    "catchui-ui-patterns-mcp-server": {
      "type": "http",
      "url": "https://catchui.com/api/mcp"
    }
  }
}
```

Claude Code:

```sh
claude mcp add --transport http catchui-ui-patterns-mcp-server https://catchui.com/api/mcp
```

## Tools (6)

- `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, Dynamic Island vs 
- `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 accessibility it needs — in
- `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 system UI, AppKit, Wi
- `get_ui_pattern`: Returns the full CatchUI entry for one UI pattern by id (e.g. "tabbar", "bottomsheet"): definition in English and Chinese, pronunciation, aliases, how people de
- `list_ui_patterns`: Lists the 61 UI patterns in CatchUI's curated catalog — ids, English and Chinese names and one-line definitions — grouped by family, optionally filtered to one 
- `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 bottom of an app", "thr

Measured by Glimind (https://glimind.com): MCP handshake + tool list only, no tool is ever called. CC BY 4.0.