ToolVet
80trust / 100

Robots

by PennyAPI Robots Permission Check in Search & web

x402 APIPassing, checked 3 h ago

Check robots.txt before crawling or scraping a page. Decide whether GPTBot, ClaudeBot, Googlebot, or another crawler may fetch the exact URL and return ALLOW/DENY, winning rule, crawl-delay, sitemap URLs, and live provenance.

GET https://pennyregwatch.com/v1/robots

Last 30 days

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Status and outage history · Atom feed

Uptime
100%
Response time
376 ms typical, 773 ms slowest 5%
Last check
3 h ago
Next check
any minute now

How to call it

GET https://pennyregwatch.com/v1/robots

Each call costs $0.001 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.

GET https://pennyregwatch.com/v1/robots?target=https%3A%2F%2Fexample.com%2Fprivate%2Fpage&user_agent=GPTBot

Parameters

ParameterTypeRequiredDescription
targetstringYesExact public page URL or hostname to test
user_agentstringNoCrawler product token, e.g. GPTBot, ClaudeBot, Googlebot Default: "*".

Example response

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

{
  "allowed": true,
  "crawl_delay": null,
  "decision": "ALLOW",
  "matched_rule": null,
  "ok": true,
  "sitemaps": [],
  "target": "https://example.com/",
  "user_agent": "GPTBot"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.001.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://pennyregwatch.com/v1/robots?target=https%3A%2F%2Fexample.com%2Fprivate%2Fpage&user_agent=GPTBot'

# 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 - 'https://pennyregwatch.com/v1/robots?target=https%3A%2F%2Fexample.com%2Fprivate%2Fpage&user_agent=GPTBot' \
  | 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 $0.001 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.001" });
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 $0.001 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fpennyregwatch.com%2Fv1%2Frobots
const res = await pay("https://pennyregwatch.com/v1/robots?target=https%3A%2F%2Fexample.com%2Fprivate%2Fpage&user_agent=GPTBot");
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 $0.001 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.001"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://pennyregwatch.com/v1/robots?target=https%3A%2F%2Fexample.com%2Fprivate%2Fpage&user_agent=GPTBot")
    print(res.status_code, res.text)

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
3 h agoPassed402324 ms$0.001
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