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Saylor Innovations Cache-Control Header Analyzer
x402
Saylor Innovations Cache-Control Header Analyzer is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-30).
Parses and analyzes a Cache-Control header value, returning browser and CDN cacheability, freshness durations, directive breakdown, and warnings about conflicting or ineffective directives
Price / call$0.01
Success—
StatusUnknown
How this service works
Analyze a Cache-Control header - browser and CDN freshness, no-store and no-cache handling, stale-while-revalidate and conflicting directive warnings
Output
A JSON object containing the original header string, an overall verdict, a list of warnings about conflicting or ineffective directives, a breakdown of parsed directive values (max-age, s-maxage, public, stale-while-revalidate, etc.), boolean flags for browser_cacheable and shared_cache_cacheable, human-readable freshness durations for both browser and shared cache, and additional fields like immutable, revalidate_every_time, and stale_if_error_seconds.
Example use cases
Diagnose conflicting cache directives
“I have this Cache-Control header: 'no-store, max-age=3600' — can you analyze it and tell me if there are any conflicts or warnings I should know about?”
Check CDN freshness for static assets
“Analyze this Cache-Control header value 'public, s-maxage=86400, max-age=3600, immutable' and tell me how long CDNs versus browsers will consider the response fresh.”
Verify no-cache revalidation behavior
“What does 'no-cache, must-revalidate' mean for browser and shared cache behavior? Can you parse it and give me a full breakdown of how it will be handled?”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/dev/cache-control?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, structured analysis of a Cache-Control header value without building your own parser — especially useful for diagnosing caching misconfigurations, checking CDN vs browser freshness differences, detecting conflicting directives, or explaining caching behavior to non-experts. Prefer it over manual parsing when you need both human-readable verdicts and machine-readable directive breakdowns in one call.
Side effects
- Missing or empty 'header' query parameter returns an error
- Malformed or non-standard directive strings may produce incomplete parsed output
- Highly unusual or vendor-specific extensions may not be recognized
- Network or payment authorization failure returns a 402 or 4xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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