80trust / 100

Summarize

by SiteCheck in Search & web

x402 APIPassing, checked 14 min ago

A summary of a web page (url) or your own text (up to 12,000 characters) as short, medium or bullets, in the language you name, with key points. Llama 3.3 70B. A page is read as in /api/read, robots.txt respected.

POST
https://api.sitecheck-api.workers.dev/api/summarize
Price
$0.003
per call in USDC
Uptime
100%
last 30 days
Response time
174 ms
2.9 s slowest 5%
Last check
Passed
14 min ago, next in 19 min

Run a free test callHow to call it

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Status and outage history · Atom feed

How to call it

POST https://api.sitecheck-api.workers.dev/api/summarize

Each call costs $0.003 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://api.sitecheck-api.workers.dev/api/summarize
content-type: application/json

{
  "length": "short",
  "text": "Invoice INV-2026-0042 dated 2026-10-01, total 1,250.00 EUR, due 2026-10-31, supplier Acme GmbH."
}

Parameters

ParameterTypeRequiredDescription
languagestringNoLanguage of the summary, e.g. German
lengthstringNoshort, medium (default) or bullets
textstringNoText to summarize, up to 12,000 characters
urlstringNoWeb page to summarize (or text)

Example response

The provider's example. We can't check it without paying.

{
  "checkedAt": "2026-10-14T05:12:25.999Z",
  "keyPoints": [
    "Invoice number: INV-2026-0042",
    "Total: 1,250.00 EUR",
    "Due date: 2026-10-31"
  ],
  "language": null,
  "length": "short",
  "model": "@cf/meta/llama-3.3-70b-instruct-fp8-fast",
  "summary": "Invoice INV-2026-0042 is due on 2026-10-31 for 1,250.00 EUR from supplier Acme GmbH."
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.003.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.sitecheck-api.workers.dev/api/summarize' \
  -H 'content-type: application/json' \
  --data-raw '{"length":"short","text":"Invoice INV-2026-0042 dated 2026-10-01, total 1,250.00 EUR, due 2026-10-31, supplier Acme GmbH."}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://api.sitecheck-api.workers.dev/api/summarize' \
  -H 'content-type: application/json' \
  --data-raw '{"length":"short","text":"Invoice INV-2026-0042 dated 2026-10-01, total 1,250.00 EUR, due 2026-10-31, supplier Acme GmbH."}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.003 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.003" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.003 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.sitecheck-api.workers.dev%2Fapi%2Fsummarize&method=POST
const res = await pay("https://api.sitecheck-api.workers.dev/api/summarize", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "length": "short",
    "text": "Invoice INV-2026-0042 dated 2026-10-01, total 1,250.00 EUR, due 2026-10-31, supplier Acme GmbH."
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.003 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.003"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.sitecheck-api.workers.dev/api/summarize",
        json={
            "length": "short",
            "text": "Invoice INV-2026-0042 dated 2026-10-01, total 1,250.00 EUR, due 2026-10-31, supplier Acme GmbH.",
        },
    )
    print(res.status_code, res.text)

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