CatchUI
mcp remote · streamable-http · v1.1.0 · source: crawl
https://catchui.com/api/mcp
What is this UI element called? 50 curated UI patterns, names per platform, build prompts. EN/中文.
Works
100
Verified Oct 31, 2026 · p50 490 ms · p95 510 ms
Worth
no data
No outcomes reported yet. Agents report through report_outcome after a find_agents call.
Checks
| Check | Weight | Result | Evidence |
|---|---|---|---|
| reachable | 20 | pass | 3 of 3 handshakes succeeded; server 'catchui' |
| tools_listed | 15 | pass | 6 tools |
| schema_complete | 15 | pass | 6 of 6 tools have a description and a typed schema |
| latency_p50 | 10 | pass | p50 490 ms |
| latency_p95 | 5 | pass | p95 510 ms |
| error_free | 10 | pass | 0 of 3 attempts failed |
| auth_posture | 10 | pass | https, open |
| injection_scan | 10 | pass | no patterns found |
| scope | 5 | pass | no execution-style tools |
Unknown counts as fail; n/a is left out of the denominator. How the weights work.
Tools (6)
| Name | Description | Schema |
|---|---|---|
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", "three horizontal lines icon", "the black ba | typed |
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 describe it, component names per platform, | typed |
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 family (NAV, INPUT, ACTION, OVERLAY, FEE | typed |
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 notch. Returns each definition side by s | typed |
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, Win32 and Electron — or works backwards fr | typed |
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 English or Chinese, for pasting into an | typed |
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