# AgentShelf Nofollow Href Extractor

> AgentShelf Nofollow Href Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-02).

Extracts all href attribute values from anchor elements with rel=nofollow from a given public web page URL or raw HTML string, in an SSRF-safe manner.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/profile-nofollow-href?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-nofollow-href-extractor-c7cf6768
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_rx5XbmLqxo0QCjI5cR3Bw

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-nofollow-href-extractor-c7cf6768 -d '<json body>'
```

Example prompt: Can you extract all the rel=nofollow anchor hrefs from this page: https://example.com/blog/post-123? I need to see every nofollow link target on that page.

## When to prefer this

Use this endpoint when you specifically need to identify and collect href values from anchor elements marked with rel=nofollow on a public web page or HTML blob. Prefer this over generic link extractors when the nofollow attribute is the key filter criterion (e.g., SEO audits, sponsored link detection, or UGC link analysis). For free usage, try the unpaid POST /v1/sandbox/profile-nofollow-href first.

## Known failure modes

- URL is unreachable or returns non-200 status — extraction fails with an error
- SSRF-blocked URL (private IP range, localhost) — rejected for security reasons
- HTML input exceeds 200,000 character limit — request rejected
- No nofollow anchors found on the page — returns empty list
- Malformed HTML may result in incomplete or no results
- URL or HTML not provided — request fails validation

## How this service works

Call when an agent needs hrefs of anchors with rel=nofollow extracted from a public page or HTML (SSRF-safe). Exact $0.005 USDC. Prefer unpaid POST /v1/sandbox/profile-nofollow-href first.

## Output

A list of href values (URLs or relative paths) extracted from all <a rel='nofollow'> anchor elements found in the provided page or HTML. Returns only the href strings, no additional metadata.

## 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-nofollow-href-extractor-c7cf6768/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)