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Tollkit Extract – Web Page Attestation
x402
Tollkit Extract – Web Page Attestation is a paid API for AI agents from web.tollkit.dev, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-11).
Fetches a live web page, hashes its content and optionally a screenshot, and returns a cryptographic attestation suitable as evidence in disputes.
Price / call$0.25
Success—
StatusUnknown
How this service works
Pay-per-call product page extraction. No account, no API key: pay in-band with x402 in USDC on Base or Solana.
Output
Returns a cryptographic attestation record containing a hash of the fetched page content, an optional screenshot hash, and a timestamp, providing tamper-evident proof of what the URL contained at the moment of the call.
Example use cases
Archiving competitor pricing claims
“Attest to this competitor's pricing page at https://rival.com/pricing — include a screenshot — so I have a timestamped, verifiable record I can use if they change it later.”
Preserving terms-of-service as legal evidence
“I need a cryptographic attestation of https://partner.com/terms-of-service with a screenshot captured right now, before we sign the contract, in case the terms are edited afterward.”
Recording a public policy for a dispute
“Create an attested, hashed record of https://marketplace.com/seller-policy today — with a screenshot — so we have proof of what the policy said if there's a dispute about our account suspension.”
Technical details
Endpoint
POSThttps://web.tollkit.dev/attest?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need cryptographic, timestamped proof of a webpage's content at a specific moment — especially for dispute resolution, compliance records, or preserving evidence of claims that could be edited later. It is distinct from simple page scrapers because it returns a verifiable attestation rather than just raw text. No account or API key is required; payment is made per-call via x402 in USDC.
Side effects
- URL is unreachable or returns a non-200 status — attestation fails with a fetch error
- URL uses HTTP instead of HTTPS — rejected by the schema's format constraint
- Payment in USDC not provided or insufficient — 402 response returned before processing begins
- Screenshot capture times out on heavy pages — falls back or returns error depending on service behavior
- Page requires authentication or bot-blocking — content hash may reflect an error or login page rather than the intended content
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Absolute https:// URL of the page to attest to. Anything a dispute could turn on: terms of service, a price, a published policy, a competitor's claim, a listing that may be edited later. |
| screenshot | boolean | Capture and hash a screenshot. On by default — an attestation without one is much weaker evidence. Turn it off for a faster, text-only record. |
Tags
x402
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