ToolVet
77trust / 100

Contains

by CIDR membership in Other

x402 APIPassing, checked 37 min ago

Test whether an IP address falls within a CIDR block. A well-formed address of a different family (or simply outside the block) returns contains=false — not an error.

POST
https://ip.openverbs.com/v1/contains
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
579 ms
688 ms slowest 5%
Last check
Passed
37 min ago, next any minute now

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://ip.openverbs.com/v1/contains

Each call costs $0.002 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://ip.openverbs.com/v1/contains
content-type: application/json

{
  "address": "192.168.1.42",
  "cidr": "192.168.1.0/24"
}

Parameters

ParameterTypeRequiredDescription
addressstringYesIP address to test.
cidrstringYesCIDR block, e.g. "10.0.0.0/8".

Example response

The listing has no example response.

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.002.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://ip.openverbs.com/v1/contains' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"192.168.1.42","cidr":"192.168.1.0/24"}'

# 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://ip.openverbs.com/v1/contains' \
  -H 'content-type: application/json' \
  --data-raw '{"address":"192.168.1.42","cidr":"192.168.1.0/24"}' \
  | 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 $0.002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.002" });
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 $0.002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fip.openverbs.com%2Fv1%2Fcontains&method=POST
const res = await pay("https://ip.openverbs.com/v1/contains", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "address": "192.168.1.42",
    "cidr": "192.168.1.0/24"
  }),
});
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 $0.002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.002"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://ip.openverbs.com/v1/contains",
        json={
            "address": "192.168.1.42",
            "cidr": "192.168.1.0/24",
        },
    )
    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
37 min agoPassed402622 ms$0.002
6 h agoPassed402565 ms$0.002
10 h agoPassed402571 ms$0.002
15 h agoPassed402647 ms$0.002
20 h agoPassed402566 ms$0.002
Show 10 older checks
24 h agoPassed402568 ms$0.002
29 h agoPassed402581 ms$0.002
33 h agoPassed402655 ms$0.002
37 h agoPassed402811 ms$0.002
41 h agoPassed402596 ms$0.002
45 h agoPassed402586 ms$0.002
2 days agoPassed402591 ms$0.002
2 days agoPassed402559 ms$0.002
2 days agoPassed402591 ms$0.002
3 days agoPassed402586 ms$0.002