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AgentShelf Theme-Color Meta Extractor
x402
AgentShelf Theme-Color Meta Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.009/call, status unknown (last checked 2026-09-29).
Extracts the theme-color meta tag value from a public web page URL or raw HTML, with SSRF protection.
Price / call$0.009
Success—
StatusUnknown
How this service works
Call when an agent needs the theme-color meta value extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-meta-theme-color first.
Output
Returns the value of the <meta name='theme-color'> tag found in the page or HTML, typically a hex color string (e.g. '#1a73e8'). Returns null or an empty result if the tag is absent.
Example use cases
Brand color audit for a client site
“Check what theme-color is declared in the meta tags at https://mybrand.com — I want to confirm it matches our official brand hex code.”
Design tool auto-theming from URL
“Pull the theme-color meta value from https://stripe.com so I can use it to auto-generate a matching color palette for a design mockup.”
Scrape theme color from raw HTML snippet
“I have this raw HTML from a page I already downloaded — can you extract the theme-color meta tag value from it? Here's the HTML: <html><head><meta name='theme-color' content='#1a73e8'></head></html>”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/profile-meta-theme-color?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to reliably extract the theme-color meta tag from a public URL or HTML blob with SSRF safety guarantees. Prefer the free sandbox endpoint (/v1/sandbox/profile-meta-theme-color) for development or cost-sensitive use; use this paid endpoint when the sandbox is unavailable or rate-limited.
Side effects
- URL is unreachable or returns a non-200 status — extraction fails with a fetch error
- SSRF-blocked URL (private IP range, localhost) — request rejected for safety
- HTML input exceeds 200,000 character limit — request rejected
- No theme-color meta tag present in the page — empty or null result returned
- Malformed HTML where the meta tag cannot be parsed — may return null
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Public page to fetch. The selector or profile is fixed by the SKU. Provide url or html. |
| html | string | HTML to extract from locally. Provide html or url. When both are set, html is used. |
Tags
x402
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