# AttestPage Bulk Quote Verifier (Single Page)

> AttestPage Bulk Quote Verifier (Single Page) is a paid API for AI agents from s2h6qt73jtzlgbgnnfacln2poq.srv.us, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-27).

Checks up to 20 quotes against a single live web page using exact, fuzzy, or passage matching, returning match offsets and a signed timestamped receipt.

## Facts

- Endpoint: POST https://s2h6qt73jtzlgbgnnfacln2poq.srv.us/v1/verify/quotes?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-27
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/attestpage-bulk-quote-verifier-single-page-38510c5b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_r4PMFEWNfngMaWeOUw02T

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-bulk-quote-verifier-single-page-38510c5b -d '<json body>'
```

Example prompt: Check the page at https://example.com/article for these three quotes using fuzzy matching — 'the study found a 42% increase', 'researchers concluded no side effects', and 'published in 2023' — and give me a signed receipt proving whether they appear.

## When to prefer this

Use this endpoint when you need to verify multiple quotes (up to 20) against a single URL in one call — it is more cost-efficient than calling the single-quote endpoint repeatedly. Choose it over the multi-URL variant when all quotes target the same page. Prefer it when you need a signed cryptographic receipt alongside match results for evidentiary, legal, or archival purposes.

## Known failure modes

- URL unreachable or returning non-200 status — page marked as unreadable
- URL exceeds 2,048 character limit — request rejected
- More than 20 quotes submitted — request rejected
- Quote exceeds 1,000 characters after normalisation — quote rejected
- Threshold outside 0.5–1.0 range — validation error
- case_sensitive set to true with passages mode — rejected
- Network timeout fetching the target page — error returned

## How this service works

Checks up to 20 quotes on one page: exact, fuzzy or none, offsets, signed receipt. US$0.02 per call; POST url, quotes.

## Output

Returns per-quote results indicating whether each was found (exact, fuzzy, none), character offsets of matches within the page, fuzzy similarity scores, and for passages mode the top 3 supporting text passages with scores. Also returns a signed, timestamped receipt cryptographically attesting the page content and match results at the time of the call.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "description": "http(s) URL of the page to check (max 2,048 characters). Fetched once for all the quotes."
  },
  "match": {
   "enum": [
    "exact",
    "fuzzy",
    "passages"
   ],
   "type": "string",
   "description": "For every quote: exact; fuzzy (default), which also accepts small differences; or passages, for a paraphrased claim: the 3 passages that share most of its words, scored, as evidence for you to judge (not a verdict)."
  },
  "quotes": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "maxItems": 20,
   "minItems": 1,
   "description": "1 to 20 quotes to look for on that page, or with match \"passages\" claims to find support for (each max 1,000 characters after normalisation). One price for the call however many."
  },
  "threshold": {
   "type": "number",
   "maximum": 1,
   "minimum": 0.5,
   "description": "Fuzzy similarity needed, default 0.9."
  },
  "case_sensitive": {
   "type": "boolean",
   "description": "Default false; must be false with match \"passages\"."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/attestpage-bulk-quote-verifier-single-page-38510c5b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from s2h6qt73jtzlgbgnnfacln2poq.srv.us](https://www.zero.xyz/host/s2h6qt73jtzlgbgnnfacln2poq.srv.us/llms.txt)