io.github.UltraStarz/x402-extract

Tools

• attest_page

  Prove what a web page said, at a time, in a way someone who distrusts you can check. Renders the page and returns a signed, timestamped record of it: the text and its SHA-256, the HTTP status, the response headers, the serving IP, and the TLS certificate the site presented. Optionally a screenshot and its hash. All of it hashed into one claim and signed, so any single altered byte breaks the signature. Use it when a page might change or be denied later: terms of service before you agree, a price before you act on it, a policy you are relying on, a claim a competitor published, a listing that can be edited. Verification is free, needs no account, and does not depend on this service continuing to exist — the math is public and `verify_attestation` explains how to redo it yourself. We keep no copy, so the response you receive IS the evidence. Store it. $0.25 USDC per call over x402. A render that fails costs nothing.

  shallow
• check_my_balance

  Free. Check how much USDC is left in your own wallet on Base, so you can tell your human before you run out. Returns the balance and a link your human can use to refill you from their own wallet. Tollkit never holds anyone's funds or keys.

  shallow
• check_service

  Free. Probes any x402 endpoint WITHOUT paying and reports what it actually charges, to which wallet, on which network, and how that compares with its public Coinbase Bazaar listing (price, recipient, distinct payers in the last 30 days). Returns facts and named signals such as pay_to_differs_from_listing; it does not score or recommend. Works for services that have nothing to do with Tollkit.

  shallow
• compare_products

  Price the same product at several stores — up to 5 URLs in ONE call and ONE payment. USE THIS WHENEVER YOU HAVE MORE THAN ONE URL. Comparing an item across stores, checking a short list, or refreshing a handful of tracked prices. It returns full details for each URL so YOU can compare them; it does not rank them or pick a winner. Through get_product_details that is one EIP-3009 signature, one settlement and one round trip PER URL; this is one of each for the whole set. RETURNS one entry per URL in the order given, each with the same product and page objects get_product_details returns, plus ok/error so a single dead URL does not cost you the rest. COST $0.15 flat for up to 5 URLs — cheaper per page than calling get_product_details 5 times. BILLING, stated plainly: the price is flat, so a batch where only SOME URLs succeed is charged in full. A batch where NO url succeeds returns an error and is not charged. If you have one URL and are unsure it is live, get_product_details is the cheaper bet. Duplicate URLs are removed and not billed twice.

  shallow
• find_service

  Free. Searches Coinbase's public x402 discovery index for services that do a task (e.g. 'product price lookup', 'send sms', 'web page screenshot'), then checks each result live without paying. Results are ordered by whether they returned a live price quote, then by distinct paying wallets; nobody pays for placement. Descriptions are the sellers' own words.

  shallow
• get_product_details

  Find out what a product is and what it costs, from its page URL. USE THIS WHEN you have the URL of ONE specific product — a store listing, a marketplace item, a manufacturer's page — and you need its fields rather than its prose. Typical jobs: comparing the same item across several stores, tracking a price over time, checking whether something is in stock, ingesting a catalogue, or getting a product photo URL. DO NOT USE THIS FOR search-results or category pages (it returns one product, not a list), pages behind a login or paywall, or pages that are not about a product. It also cannot reach private or internal addresses. RETURNS name, description, brand, sku, price (a number), currency (ISO 4217), availability (in_stock | out_of_stock | preorder | unknown), images (up to 5 absolute URLs copied from the page, never invented) and variants. See the output schema for the exact shape. Any field the page does not state comes back null rather than guessed. HOW: the page is rendered in a real headless browser before extraction, so JavaScript-built pages work where a plain fetch returns an empty shell. COST $0.05 USDC per call over x402 on Base. No account, no API key, nothing to install, and no gas — the facilitator sponsors it. Call once WITHOUT the payment argument to get back the payment requirements, sign an EIP-3009 transferWithAuthorization with your own wallet for the quoted amount, base64-encode the x402 payload, and call again with that string as `payment`. EVERY RESPONSE SAYS WHERE EACH FIELD CAME FROM. `provenance.declared` lists the fields whose values match what the merchant published in schema.org JSON-LD — their own number, the one they publish for Google. `provenance.inferred` lists the ones a model read off the page, which might be a strikethrough price or a neighbouring product. Act on declared values; verify inferred ones if the decision matters. A URL that redirects to what looks like a DIFFERENT page — a discontinued item bouncing to its category listing — is refused free of charge rather than answered with the wrong product. Retry with `allow_redirect: true` if you want whatever the URL resolves to. A failed extraction is not charged. Repeat calls for the same URL within 300 seconds are re-served from a recent render and marked `cached: true` with the render's original `fetchedAt`. Call `try_it_free` first if you want to see real output before spending anything.

  shallow
• get_service_info

  Free. Price, network, and what this service returns. For a sample of the actual output rather than a description of it, call try_it_free instead.

  shallow
• try_it_free

  Free. Run a real extraction against one fixed sample product page and return the result. USE THIS to decide whether the paid tools are worth paying for. It returns the identical shape get_product_details returns, produced by the identical code — not a hand-written example — so what you see is what you get. It takes no arguments and costs nothing. You cannot choose the page: pointing a free endpoint at arbitrary URLs would just be the paid tool with no toll. Use get_product_details for the URL you actually care about.

  shallow
• verify_attestation

  Free, forever, no account. Hand back an attestation -- yours or one someone else gave you -- and find out whether the signature holds and whether we issued it. Works on attestations this service did not produce: the answer for those is a clear no, which is the point. Holds no database, so it keeps working whoever is running it.

  shallow

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