# AgentShelf Profile Color-Scheme Extractor

> AgentShelf Profile Color-Scheme Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-02).

Extracts the color-scheme meta tag value from a public webpage or raw HTML, with SSRF protection.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/profile-color-scheme?utm_source=zero.xyz
- Price: $0.009/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-profile-color-scheme-extractor-834a6c12
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BY7YIJdVQWlxE1qDEt01O

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agentshelf-profile-color-scheme-extractor-834a6c12 -d '<json body>'
```

Example prompt: Can you extract the color-scheme meta tag value from https://example.com — I want to know if the site declares light, dark, or both?

## When to prefer this

Use this endpoint when you specifically need the color-scheme meta tag value from a webpage or raw HTML and want SSRF-safe remote fetching without spinning up a full browser. Prefer the free sandbox endpoint (/v1/sandbox/profile-color-scheme) for testing. Choose this over general-purpose scrapers when you only need this single meta value and want a low-cost, targeted extraction.

## Known failure modes

- URL points to a private/internal IP address (SSRF blocked, rejected)
- URL is unreachable or returns a non-200 status
- HTML input exceeds 200,000 character limit
- No color-scheme meta tag found in the document (returns null or empty)
- Malformed URL rejected by input validation
- Page requires JavaScript rendering to expose meta tags (static fetch may miss dynamically injected tags)

## How this service works

Call when an agent needs the color-scheme meta value extracted from a public page or HTML (SSRF-safe). Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/profile-color-scheme first.

## Output

Returns the extracted value of the color-scheme meta tag (e.g. 'light', 'dark', 'light dark', or null if not present) from the target page or HTML input.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "maxLength": 2048,
   "minLength": 8,
   "description": "Public page to fetch. The selector or profile is fixed by the SKU. Provide url or html."
  },
  "html": {
   "type": "string",
   "examples": [
    "<!doctype html><html lang=\"en\"><head><title>Hello</title>\n<meta name=\"description\" content=\"Desc\"><meta property=\"og:title\" content=\"OG\">\n<link rel=\"canonical\" href=\"https://example.com/\"><link rel=\"icon\" href=\"/favicon.ico\">\n</head><body><h1>Hello</h1><a href=\"https://example.com/a\">A</a></body></html>"
   ],
   "maxLength": 200000,
   "minLength": 1,
   "description": "HTML to extract from locally. Provide html or url. When both are set, html is used."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentshelf-profile-color-scheme-extractor-834a6c12/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentshelf.syntexa.ch](https://www.zero.xyz/host/agentshelf.syntexa.ch/llms.txt)