ToolVet
16trust / 100

Unit Convert

by Vextorium in Documents & files

x402 APIFailing, checked 2 h ago

Convert units of length, mass, volume, area, speed, temperature, data (KB vs KiB), energy, pressure, time and power, metric and imperial, with exact factors.

POST https://api.vextorium.com/v1/unit-convert

Last 30 days

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Status and outage history · Atom feed

Uptime
0.0%
Response time
- typical, - slowest 5%
Last check
2 h ago: Amount "0.003" is not in atomic token units
Next check
any minute now

How to call it

POST https://api.vextorium.com/v1/unit-convert

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.vextorium.com/v1/unit-convert
content-type: application/json

{
  "a": "mi",
  "from": "km",
  "value": 10
}

Parameters

ParameterTypeRequiredDescription
astringYesTarget unit
fromstringYesSource unit, e.g. km, lb, C, GiB, kWh
valuenumberYes

Example response

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

{
  "a": "mi",
  "from": "km",
  "magnitude": "longitud",
  "result": 6.21371192237,
  "value": 10
}

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.vextorium.com/v1/unit-convert' \
  -H 'content-type: application/json' \
  --data-raw '{"a":"mi","from":"km","value":10}'

# 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.vextorium.com/v1/unit-convert' \
  -H 'content-type: application/json' \
  --data-raw '{"a":"mi","from":"km","value":10}' \
  | 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.vextorium.com%2Fv1%2Funit-convert&method=POST
const res = await pay("https://api.vextorium.com/v1/unit-convert", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "a": "mi",
    "from": "km",
    "value": 10
  }),
});
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.vextorium.com/v1/unit-convert",
        json={
            "a": "mi",
            "from": "km",
            "value": 10,
        },
    )
    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
2 h agoAmount "0.003" is not in atomic token units402214 ms$0.003
6 h agoAmount "0.003" is not in atomic token units40278 ms$0.003
10 h agoAmount "0.003" is not in atomic token units40278 ms$0.003
15 h agoAmount "0.003" is not in atomic token units402146 ms$0.003
19 h agoAmount "0.003" is not in atomic token units4021.2 s$0.003
24 h agoAmount "0.003" is not in atomic token units402394 ms$0.003
28 h agoAmount "0.003" is not in atomic token units40278 ms$0.003
32 h agoAmount "0.003" is not in atomic token units40282 ms$0.003
36 h agoAmount "0.003" is not in atomic token units40275 ms$0.003
40 h agoAmount "0.003" is not in atomic token units40280 ms$0.003
44 h agoAmount "0.003" is not in atomic token units402336 ms$0.003
2 days agoAmount "0.003" is not in atomic token units402271 ms$0.003
2 days agoAmount "0.003" is not in atomic token units402231 ms$0.003
2 days agoAmount "0.003" is not in atomic token units40286 ms$0.003
3 days agoAmount "0.003" is not in atomic token units402232 ms$0.003