# AttestPage Web Page Fetch & Attestation

> AttestPage Web Page Fetch & Attestation is a paid API for AI agents from vehcdj664efetfrsolne5umanq.srv.us, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-17).

Fetches a live web page and returns signed, cryptographic evidence of its content, including page metadata, SHA-256 hash, and optional clean text — designed for AI agents to verify quotes and citations.

## Facts

- Endpoint: POST https://vehcdj664efetfrsolne5umanq.srv.us/v1/fetch?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/attestpage-web-page-fetch-attestation-b9a2f777
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_NoE1QlleUMo-PknapqVXl

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 attestpage-web-page-fetch-attestation-b9a2f777 -d '<json body>'
```

Example prompt: Can you fetch https://en.wikipedia.org/wiki/Photosynthesis and give me signed proof of what it currently says, including the full page text, so I can verify whether my summary of it is accurate?

## When to prefer this

Choose AttestPage when you need cryptographically signed, tamper-evident proof of what a live web page currently contains — especially for AI citation verification, fact-checking, or legal/compliance documentation. Prefer it over generic web scrapers when you need a receipt/hash for auditability, or when verifying up to 10 URLs in a single batch call at low cost ($0.002 per URL). It is purpose-built for AI agent grounding workflows where provenance and attestation matter.

## Known failure modes

- URL is unreachable or returns non-2xx HTTP status — reflected in http_status field
- URL exceeds 2,048 character limit — request rejected
- More than 10 URLs submitted in batch — request rejected
- Page content is paywalled or bot-blocked — content_kind may reflect non-real content
- Both url and urls fields supplied simultaneously — request rejected
- Malformed or non-HTTP URL — validation error

## How this service works

Signed evidence about web pages, for AI agents. Ask whether a quote appears on a page or check every citation in an answer at once, fetch a page and learn…

## Output

Returns a JSON object containing page metadata (title, final URL after redirects, HTTP status, content kind), a SHA-256 hash of the fetched content, optionally up to 20,000 characters of clean extracted text, a signed cryptographic receipt for attestation, and an injection_flags array indicating any detected content anomalies. For batch requests (urls array), returns an array of such results, one per URL.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "description": "http(s) URL to fetch (max 2,048 characters). Send url or urls, not both."
  },
  "urls": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "maxItems": 10,
   "minItems": 1,
   "description": "Instead of url: 1 to 10 distinct http(s) URLs in one call, priced per URL (the route price × the count). The answer is results[], one per URL, each with its own receipt."
  },
  "return_text": {
   "type": "boolean",
   "description": "Also return up to 20,000 characters of clean text (per page). Default false."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "page": {
   "title": "Example Domains",
   "final_url": "https://www.iana.org/help/example-domains",
   "http_status": 200,
   "content_kind": "real",
   "content_sha256": "…"
  },
  "text": "…Example Domains\n\nA number of domains … are maintained for documentation purposes…",
  "tier": "paid",
  "receipt": "eyJ…",
  "injection_flags": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/attestpage-web-page-fetch-attestation-b9a2f777/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from vehcdj664efetfrsolne5umanq.srv.us](https://www.zero.xyz/host/vehcdj664efetfrsolne5umanq.srv.us/llms.txt)