ToolVet
81trust / 100

Discover

by DiffiCat in Search & web

x402 APIPassing, checked 8 min ago

Lists the pages of a website for a migration check: reads its sitemap or crawls from the start URL, and maps every page onto the target site when one is given. Use it before starting a comparison job to choose which pages to compare. 0.05 USD per call.

POST
https://app.difficat.com/api/v1/discover
Price
$0.05
per call in USDC
Uptime
100%
last 30 days
Response time
105 ms
127 ms slowest 5%
Last check
Passed
8 min ago, next in 22 min

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://app.difficat.com/api/v1/discover

Each call costs $0.05 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://app.difficat.com/api/v1/discover
content-type: application/json

{
  "maxPages": 50,
  "sourceUrl": "https://difficat.com",
  "targetUrl": "https://www.difficat.com"
}

Parameters

ParameterTypeRequiredDescription
maxPagesintegerNoStop after this many pages (default and at most 5000).
sitemapUrlstring (uri)No
sourceUrlstring (uri)Yes
targetUrlstring (uri)No

Example response

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

{
  "pages": [
    {
      "path": "/agents",
      "sourceUrl": "https://difficat.com/agents",
      "targetUrl": "https://www.difficat.com/agents"
    }
  ],
  "payment": {
    "amount": "0.05",
    "currency": "USD"
  },
  "strategy": "sitemap-xml"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.05.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://app.difficat.com/api/v1/discover' \
  -H 'content-type: application/json' \
  --data-raw '{"maxPages":50,"sourceUrl":"https://difficat.com","targetUrl":"https://www.difficat.com"}'

# 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://app.difficat.com/api/v1/discover' \
  -H 'content-type: application/json' \
  --data-raw '{"maxPages":50,"sourceUrl":"https://difficat.com","targetUrl":"https://www.difficat.com"}' \
  | 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 $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
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 $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapp.difficat.com%2Fapi%2Fv1%2Fdiscover&method=POST
const res = await pay("https://app.difficat.com/api/v1/discover", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "maxPages": 50,
    "sourceUrl": "https://difficat.com",
    "targetUrl": "https://www.difficat.com"
  }),
});
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 $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://app.difficat.com/api/v1/discover",
        json={
            "maxPages": 50,
            "sourceUrl": "https://difficat.com",
            "targetUrl": "https://www.difficat.com",
        },
    )
    print(res.status_code, res.text)

Security scan

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Recent checks

WhenResultHTTPTimePrice
8 min agoPassed402107 ms$0.05
5 h agoPassed402127 ms$0.05
9 h agoPassed402112 ms$0.05
14 h agoPassed40269 ms$0.05
18 h agoPassed402105 ms$0.05
Show 5 older checks
22 h agoPassed402107 ms$0.05
26 h agoPassed402108 ms$0.05
31 h agoPassed402104 ms$0.05
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44 h agoPassed40263 ms$0.05