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CSS Named Color Validator
x402
CSS Named Color Validator is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-24).
Checks whether a given string is a recognized CSS named color (e.g. 'red', 'cornflowerblue')
Price / call$0.009
Success—
StatusUnknown
How this service works
Call when an agent needs whether a string is one of a small CSS color name set. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/check-color-named first.
Output
A boolean or equivalent indicator of whether the input string matches one of the CSS named color keywords (e.g. the 140 standard HTML/CSS color names such as 'red', 'blue', 'cornflowerblue').
Example use cases
CSS color name check in a design tool
“Is 'darkolivegreen' one of the official CSS named colors? I want to make sure before I use it in a stylesheet.”
Validating user-entered color field
“A user typed 'tangerine' as a color name in our form — can you check if that's actually a recognized CSS color keyword?”
Filtering color suggestions in a chatbot
“I'm building a list of colors to suggest to users — can you tell me whether 'electricblue' counts as a CSS named color or if I need to remove it?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/check-color-named?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, deterministic check against the CSS named color keyword set without implementing the list yourself. Prefer the free sandbox POST /v1/sandbox/check-color-named first if available; use this paid endpoint when the sandbox is unavailable or for production workloads requiring reliability.
Side effects
- Empty or missing 'value' field returns a validation error
- String longer than 20,000 characters rejected
- Network timeout or service unavailability returns a 5xx error
- Unexpected input type (non-string) may return an error response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| data | — | JSON value for schema-check SKUs. Omit it on string checks such as email or IBAN. |
| value | string | Value to check. The route description names the format: email, phone, IBAN, postal code, VAT, national id, or similar. |
| schema | — | JSON Schema document for schema-check SKUs. Omit it on string checks. |
Tags
x402
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