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CSS Design Calc – Fluid Clamp Generator
x402
CSS Design Calc – Fluid Clamp Generator is a paid API for AI agents from css-design-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-29).
Generates a CSS clamp() expression that linearly scales a size between a minimum and maximum viewport width, returning the slope, intercept, and rem values.
Price / call$0.02
Success—
StatusUnknown
How this service works
Generate a CSS clamp() that scales a size linearly between a min and max viewport width, in rem, with the exact slope.
Output
Returns a ready-to-use CSS clamp() string (in rem), the slope in vw units, the intercept in both px and rem, the min and max sizes in rem, the size evaluated at a given viewport width, the size at the midpoint viewport, a plain-language summary, and a verdict or any degraded/warning flags.
Example use cases
Fluid typography for a design system
“I'm building a design system and need a CSS clamp() that scales my heading from 24px on mobile (320px viewport) to 48px on desktop (1440px viewport) — give me the exact clamp expression and the slope in vw.”
Responsive spacing token generation
“Can you calculate a CSS clamp() for padding that goes from 12px at 375px viewport up to 40px at 1280px viewport? I need the rem values too, assuming a 16px root font size.”
Verifying fluid size at a specific breakpoint
“I have a fluid size that should be 14px at 320px and 22px at 1200px — what does the CSS clamp() look like and what exact size does it produce at a 960px viewport?”
Technical details
Endpoint
GEThttps://css-design-calc.x402tookit.com/clamp-fluid?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a mathematically precise CSS clamp() for fluid typography or spacing, specifically when you require the exact linear slope and intercept in both px and rem — especially useful for design-system tooling, code generators, or automated style-guide pipelines where manual calculation would be error-prone.
Side effects
- Missing required minSize or maxSize returns a validation error
- minSize greater than maxSize may produce an inverted or nonsensical clamp
- minViewport equal to maxViewport causes a division-by-zero in slope calculation
- Non-numeric query parameters result in a parse/type error
- Very large or very small px values may produce impractical rem outputs
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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