Design Check scans a page's HTML, CSS, copy, and interaction patterns for what makes AI-generated work read as generic. That includes how it looks. It also includes how it writes, and what it does when something goes wrong.
Try it: paste HTML
Does the page width or background change from section to section, or is the whole thing one column on one flat background top to bottom. Flags repeated cards or bullets that are all the same size and shape.
Inter, Geist, or Roboto, and nothing else set alongside it.
A gradient between purple, indigo, blue, or pink.
A fully-rounded button next to an arrow icon. A small label sitting directly above a headline.
Cliché words like "unlock" or "delve." Sentences shaped like "it's not X, it's Y." Hedge words. More than one em-dash per paragraph.
A problem named with no fix attached. A link pointing at "#" instead of somewhere real.
As an MCP server, so your agent checks before it ships:
{
"mcpServers": {
"designcheck": {
"url": "https://designcheck.allthepossibles.com/mcp"
}
}
}
Then call check_design before presenting UI to a human.
Or hit the API directly:
curl -X POST https://designcheck.allthepossibles.com/api/check \
-H "content-type: application/json" \
-d '{"url": "https://example.com"}'
Free
Every structural check: typography, color, component, layout, copy, experience. 20 requests/minute per caller IP. No signup.
Basic, $5/mo
150 requests/minute instead of 20. Same checks as free, nothing extra unlocked: if a CI job or an agent loop is tripping the free rate limit on its own, this fixes that and nothing else.
Pro, $19/mo
500 requests/minute, plus a vision pass: a real screenshot, critiqued for composition rather than inferred from the HTML. First 7 days free, and vision runs on your own Anthropic key until the first payment.