ToolVet
71trust / 100

Calc Stone Nephrolithometry

by magent in Other

x402 APIPassing, checked 3 min ago

Okhunov 2013 STONE nephrolithometry for kidney calculi (PCNL). Caller-assigned published item points: size 0_399 1 / 400_799 2 / 800_1599 3 / ge_1600 4 (mm²); tract le_100 1 / gt_100 2 (skin-to-stone mm); obstruction none_or_mild 1 / moderate_or_severe 2 (hydronephrosis); calyces 1_or_2 1 / 3 2 / staghorn 3; essence le_950 1 / gt_950 2 (HU). Sum 5-13. No published SFR bands. Not the Moore 2014 ureteral STONE score. magent does not measure CT. Not a medical device. Not a PCNL order.

POST
https://api.magentlab.com/api/calc/stone_nephrolithometry
Price
$0.007
per call in USDC
Uptime
100%
last 30 days
Response time
218 ms
520 ms slowest 5%
Last check
Passed
3 min ago, next in 30 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://api.magentlab.com/api/calc/stone_nephrolithometry

Each call costs $0.007 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.magentlab.com/api/calc/stone_nephrolithometry
content-type: application/json

{
  "items": [
    {
      "calyces": "1_or_2",
      "essence": "le_950",
      "obstruction": "none_or_mild",
      "size": "0_399",
      "tract": "le_100"
    },
    {
      "calyces": "1_or_2",
      "essence": "le_950",
      "obstruction": "none_or_mild",
      "size": "0_399",
      "tract": "le_100"
    }
  ]
}

Parameters

ParameterTypeRequiredDescription
itemsarray of objectYes

Example response

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

Example response, 110 lines
{
  "count": 2,
  "items": [
    {
      "calyces": "1_or_2",
      "citation": {
        "authors": "Okhunov Z, Friedlander JI, George AK, Duty BD, Moreira DM, Srinivasan AK, Hillelsohn J, Smith AD, Okeke Z",
        "doi": "10.1016/j.urology.2012.10.083",
        "id": "okhunov-2013",
        "pmid": "23540858",
        "source": "Urology. 2013;81(6):1154-1159",
        "title": "S.T.O.N.E. nephrolithometry: novel surgical classification system for kidney calculi"
      },
      "components": [
        {
          "factor": "size",
          "points": 1,
          "present": true,
          "value": "0_399"
        },
        {
          "factor": "tract",
          "points": 1,
          "present": true,
          "value": "le_100"
        },
        {
          "factor": "obstruction",
          "points": 1,
          "present": true,
          "value": "none_or_mild"
        },
        {
          "factor": "calyces",
          "points": 1,
          "present": true,
          "value": "1_or_2"
        },
        {
          "factor": "essence",
          "points": 1,
          "present": true,
          "value": "le_950"
        }
      ],
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "essence": "le_950",
      "formula": "stone_nephrolithometry",
      "formula_expression": "STONE = size (0_399 1, 400_799 2, 800_1599 3, ge_1600 4) + tract (le_100 1, gt_100 2) + obstruction (none_or_mild 1, moderate_or_severe 2) + calyces (1_or_2 1, 3 2, staghorn 3) + essence (le_950 1, gt_950 2); Okhunov 2013 STONE nephrolithometry; sum 5-13; no published SFR bands",
      "max_score": 13,
      "obstruction": "none_or_mild",
      "score": 5,
      "size": "0_399",
      "tract": "le_100"
    },
    {
      "calyces": "1_or_2",
      "citation": {
        "authors": "Okhunov Z, Friedlander JI, George AK, Duty BD, Moreira DM, Srinivasan AK, Hillelsohn J, Smith AD, Okeke Z",
        "doi": "10.1016/j.urology.2012.10.083",
        "id": "okhunov-2013",
        "pmid": "23540858",
        "source": "Urology. 2013;81(6):1154-1159",
        "title": "S.T.O.N.E. nephrolithometry: novel surgical classification system for kidney calculi"
      },
      "components": [
        {
          "factor": "size",
          "points": 1,
          "present": true,
          "value": "0_399"
        },
        {
          "factor": "tract",
          "points": 1,
          "present": true,
          "value": "le_100"
        },
        {
          "factor": "obstruction",
          "points": 1,
          "present": true,
          "value": "none_or_mild"
        },
        {
          "factor": "calyces",
          "points": 1,
          "present": true,
          "value": "1_or_2"
        },
        {
          "factor": "essence",
          "points": 1,
          "present": true,
          "value": "le_950"
        }
      ],
      "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
      "essence": "le_950",
      "formula": "stone_nephrolithometry",
      "formula_expression": "STONE = size (0_399 1, 400_799 2, 800_1599 3, ge_1600 4) + tract (le_100 1, gt_100 2) + obstruction (none_or_mild 1, moderate_or_severe 2) + calyces (1_or_2 1, 3 2, staghorn 3) + essence (le_950 1, gt_950 2); Okhunov 2013 STONE nephrolithometry; sum 5-13; no published SFR bands",
      "max_score": 13,
      "obstruction": "none_or_mild",
      "score": 5,
      "size": "0_399",
      "tract": "le_100"
    }
  ],
  "path": "/api/calc/stone_nephrolithometry"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.007.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.magentlab.com/api/calc/stone_nephrolithometry' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"calyces":"1_or_2","essence":"le_950","obstruction":"none_or_mild","size":"0_399","tract":"le_100"},{"calyces":"1_or_2","essence":"le_950","obstruction":"none_or_mild","size":"0_399","tract":"le_100"}]}'

# 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.magentlab.com/api/calc/stone_nephrolithometry' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"calyces":"1_or_2","essence":"le_950","obstruction":"none_or_mild","size":"0_399","tract":"le_100"},{"calyces":"1_or_2","essence":"le_950","obstruction":"none_or_mild","size":"0_399","tract":"le_100"}]}' \
  | 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 $0.007 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.007" });
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 $0.007 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.magentlab.com%2Fapi%2Fcalc%2Fstone_nephrolithometry&method=POST
const res = await pay("https://api.magentlab.com/api/calc/stone_nephrolithometry", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "calyces": "1_or_2",
        "essence": "le_950",
        "obstruction": "none_or_mild",
        "size": "0_399",
        "tract": "le_100"
      },
      {
        "calyces": "1_or_2",
        "essence": "le_950",
        "obstruction": "none_or_mild",
        "size": "0_399",
        "tract": "le_100"
      }
    ]
  }),
});
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 $0.007 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.007"})
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.magentlab.com/api/calc/stone_nephrolithometry",
        json={
            "items": [
                {
                    "calyces": "1_or_2",
                    "essence": "le_950",
                    "obstruction": "none_or_mild",
                    "size": "0_399",
                    "tract": "le_100",
                },
                {
                    "calyces": "1_or_2",
                    "essence": "le_950",
                    "obstruction": "none_or_mild",
                    "size": "0_399",
                    "tract": "le_100",
                },
            ],
        },
    )
    print(res.status_code, res.text)

Security scan

1 finding

  • Charges more than its listed price in payment
    Listed at $0.005, charges $0.007

Recent checks

WhenResultHTTPTimePrice
3 min agoPassed402310 ms$0.007
5 h agoPassed402231 ms$0.007
10 h agoPassed402309 ms$0.007
14 h agoPassed402160 ms$0.007
19 h agoPassed402428 ms$0.007
Show 10 older checks
23 h agoPassed402238 ms$0.007
28 h agoPassed402238 ms$0.007
32 h agoPassed402274 ms$0.007
36 h agoPassed402147 ms$0.007
40 h agoPassed402218 ms$0.007
44 h agoPassed402154 ms$0.007
2 days agoPassed402151 ms$0.007
2 days agoPassed402279 ms$0.007
2 days agoPassed402145 ms$0.007
3 days agoPassed402365 ms$0.007

History

11 Oct 2026Price changed from $0.005 to $0.007