mcpbeat Sign in

Slop Patterns MCP Server

by sloppatterns Your server? Claim it
not responding

Slop Patterns is listed as active in the registry but did not answer our last check. It exposes 7 tools. Last commit 26 Oct 2026.

Checks UI code for AI-default design patterns and gives the fix. By Precious Studio.

Uptime history 27 days of history · worst day 0%
27 days agonow
1.1%
Uptime 24h
1 of 91 checks
7
Tools
read from the server
275 ms
Response time
average over 24h
3
Stars
last commit 26 Oct 2026

What the code does

We read the source, 5 d ago · tools taken from the live server · rules 995398eba69f

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

Reads files and sends them to the network cli/index.js:25
  const walk = (d) => { for (const n of fs.readdirSync(d)) { if (n === 'node_modules' || n.startsWith('.')) continue; const p = path.join(d, n); const s = fs.statSync(p); if (s.isDirectory()) walk(p); else if (/\.html?$/i.test(n)) found.push(p); } };
var M=30,el=document.getElementById('bl');if(!el)return;el.innerHTML=D.map(function(d){return '<div class="br"><div class="lab">'+d[1]+'<small>'+d[0]+'</small></div><div class="tr"><div class="b" style="width:'+(d[2]/M*85)+'%;background:var(--ai)"><span>'+d[2]+'%</span></div><div…

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

run in your terminal
claude mcp add slop-patterns --transport http https://sloppatterns.com/mcp
Settings → Connectors → Add custom connector, then paste this address
https://sloppatterns.com/mcp
~/.codex/config.toml
[mcp_servers.slop-patterns]
url = "https://sloppatterns.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "slop-patterns": {
      "url": "https://sloppatterns.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "slop-patterns": {
      "type": "http",
      "url": "https://sloppatterns.com/mcp"
    }
  }
}

Available tools 7

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

patterns
list_patterns
List the whole Slop Patterns taxonomy: code, id, name and one-liner for every documented AI design anti-pattern.
search_patterns
Plain-language search across the library. "gradient headline" returns A10 Gradient Text Headline.
changelog
changelog
The library version, what each release added or changed, and how patterns are versioned. Use it to cite a specific version of Slop Patterns.
design
check_design
Check a snippet of CSS, HTML or JSX against the Slop Patterns library and return every AI design anti-pattern it matches, with the fix for each. Covers the 101 documented patterns that have a mechanical tell. Useful for reviewing generated UI code.
pattern
get_pattern
Get one full pattern entry by id or code (e.g. "a1" or "the-unchosen-gradient"): what it looks like, why the tools produce it, who it hurts, the fix, sources.
report
report_pattern
Report an AI design anti-pattern that is NOT yet in the library, for a design failure seen repeatedly that a search of the library does not find. Reports are reviewed by a human before anything is published, and published entries credit the reporter.
why
why
Return only the causal explanation for one pattern — which model, tool or template default produces it.

Endpoints

URLTransportStateLatencyChecked
https://sloppatterns.com/mcp streamable-http answering 78 ms 11 min ago

Alternatives to Slop Patterns

same job, measured the same way
Rams
by rams

Design review for UI code and live pages: quick checks, 0-100 scored reviews, fixes as patches

5 tools answering
Standout
by standoutmcp

Anti-slop design taste for AI coding agents: art directions, section code, 0-100 page critic.

30 tools answering
Pathista
by pathista

Step-by-step workflows for ChatGPT, Claude and Claude Code: the AI gets one step at a time.

answering
Tently
by tently-team

Tently, the AI PR reviewer for GitHub: agents check team decisions before they write code.

63 installs/wk local only
Maps by DeltaBreen
by deltabreen

Put a map on a site with your AI: map your places, design the look, and get the code.

answering
cadloop Slicer
by richardofortune

Find printer profiles, check bed fit, slice to .gcode.3mf and extract the G-code.

112 installs/wk local only
Elliot
by emanuelecell4

Independent verifier for AI agents: checks agent claims and doc promises against the code.

local only
ASMI — AI avatars for your site
by broen

Design your site's AI avatar in the ASMI studio; your coding agent ships it into your repo.

answering

Slop Patterns — questions

Answers built from our own checks of this server.

What can Slop Patterns do?
It exposes 7 tools, read directly from the server on our last check. Among them: changelog, check_design, get_pattern, list_patterns, report_pattern, search_patterns and 1 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Slop Patterns working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 1 of 91 checks got a reply (1.1%), average response time 275 ms. The bar chart above shows every period we have measured.
The registry lists Slop Patterns as active — why does it not respond?
The official MCP registry stores what the author submitted; it does not verify that the server still runs. We check the endpoint ourselves, and this one does not answer. Catalogues that copy the registry without checking will show it as working.
How do I connect Slop Patterns?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Slop Patterns need an API key?
No. Slop Patterns completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 7 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Slop Patterns?
It answers our handshake in 275 ms on average, which is faster than 49% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Slop Patterns open source?
The code is open source: it is published under the MIT licence, written in JavaScript and 3 stars on GitHub. The licence covers the code in the repository, not the hosted service at sloppatterns.com, which runs on its operator's own terms.