ToolVet
71trust / 100

Calc Thakar

by magent in Other

x402 APIPassing, checked 26 min ago

Thakar 2005 clinical score for acute renal failure requiring dialysis after open-heart surgery. Points from sex, CHF, LVEF <35%, preoperative IABP, COPD, insulin-requiring diabetes, previous cardiac surgery, emergency surgery, procedure type (CABG / valve / CABG+valve / other), and preoperative creatinine (<1.2 / 1.2 to <2.1 / >=2.1 mg/dL). Returns integer score (max 17) and category 0–2 / 3–5 / 6–8 / 9–13. Not a dialysis order; not AKIN or RIFLE staging.

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

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/thakar
content-type: application/json

{
  "items": [
    {
      "congestive_heart_failure": false,
      "copd": false,
      "creatinine_mg_dl": 1,
      "creatinine_umol_l": 88.42,
      "emergency_surgery": false,
      "insulin_diabetes": false,
      "lvef_lt_35": false,
      "preoperative_iabp": false,
      "previous_cardiac_surgery": false,
      "sex": "male",
      "surgery_type": "cabg"
    },
    {
      "congestive_heart_failure": false,
      "copd": false,
      "creatinine_mg_dl": 1,
      "creatinine_umol_l": 88.42,
      "emergency_surgery": false,
      "insulin_diabetes": false,
      "lvef_lt_35": false,
      "preoperative_iabp": false,
      "previous_cardiac_surgery": false,
      "sex": "male",
      "surgery_type": "cabg"
    }
  ]
}

Parameters

ParameterTypeRequiredDescription
itemsarray of objectYes

Example response

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

Example response, 152 lines
{
  "count": 2,
  "items": [
    {
      "citation": {
        "authors": "Thakar CV, Arrigain S, Worley S, Yared JP, Paganini EP",
        "doi": "10.1681/ASN.2004040331",
        "id": "thakar-2005",
        "pmid": "15563569",
        "source": "J Am Soc Nephrol. 2005;16(1):162-168",
        "title": "A clinical score to predict acute renal failure after cardiac surgery"
      },
      "components": [
        {
          "factor": "female",
          "points": 0,
          "present": false
        },
        {
          "factor": "congestive_heart_failure",
          "points": 0,
          "present": false
        },
        {
          "factor": "lvef_lt_35",
          "points": 0,
          "present": false
        },
        {
          "factor": "preoperative_iabp",
          "points": 0,
          "present": false
        },
        {
          "factor": "copd",
          "points": 0,
          "present": false
        },
        {
          "factor": "insulin_diabetes",
          "points": 0,
          "present": false
        },
        {
          "factor": "previous_cardiac_surgery",
          "points": 0,
          "present": false
        },
        {
          "factor": "emergency_surgery",
          "points": 0,
          "present": false
        },
        {
          "factor": "surgery_type",
          "points": 0,
          "present": false,
          "value": "cabg"
        },
        {
          "factor": "creatinine_mg_dl",
          "points": 0,
          "present": false,
          "value": 1
        }
      ],
      "creatinine_mg_dl": 1,
      "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.",
      "formula": "thakar",
      "formula_expression": "Thakar 2005 = female(1) + congestive_heart_failure(1) + lvef_lt_35(1) + preoperative_iabp(2) + copd(1) + insulin_diabetes(1) + previous_cardiac_surgery(1) + emergency_surgery(2) + surgery_type(cabg 0, valve 1, cabg_valve 2, other 2) + creatinine_mg_dl(<1.2: 0, 1.2 to <2.1: 2, >=2.1: 5); max 17; categories 0-2 / 3-5 / 6-8 / 9-13",
      "max_score": 17,
      "score": 0,
      "sex": "male",
      "surgery_type": "cabg",
      "thakar_category": "0_to_2"
    },
    {
      "citation": {
        "authors": "Thakar CV, Arrigain S, Worley S, Yared JP, Paganini EP",
        "doi": "10.1681/ASN.2004040331",
        "id": "thakar-2005",
        "pmid": "15563569",
        "source": "J Am Soc Nephrol. 2005;16(1):162-168",
        "title": "A clinical score to predict acute renal failure after cardiac surgery"
      },
      "components": [
        {
          "factor": "female",
          "points": 0,
          "present": false
        },
        {
          "factor": "congestive_heart_failure",
          "points": 0,
          "present": false
        },
        {
          "factor": "lvef_lt_35",
          "points": 0,
          "present": false
        },
        {
          "factor": "preoperative_iabp",
          "points": 0,
          "present": false
        },
        {
          "factor": "copd",
          "points": 0,
          "present": false
        },
        {
          "factor": "insulin_diabetes",
          "points": 0,
          "present": false
        },
        {
          "factor": "previous_cardiac_surgery",
          "points": 0,
          "present": false
        },
        {
          "factor": "emergency_surgery",
          "points": 0,
          "present": false
        },
        {
          "factor": "surgery_type",
          "points": 0,
          "present": false,
          "value": "cabg"
        },
        {
          "factor": "creatinine_mg_dl",
          "points": 0,
          "present": false,
          "value": 1
        }
      ],
      "creatinine_mg_dl": 1,
      "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.",
      "formula": "thakar",
      "formula_expression": "Thakar 2005 = female(1) + congestive_heart_failure(1) + lvef_lt_35(1) + preoperative_iabp(2) + copd(1) + insulin_diabetes(1) + previous_cardiac_surgery(1) + emergency_surgery(2) + surgery_type(cabg 0, valve 1, cabg_valve 2, other 2) + creatinine_mg_dl(<1.2: 0, 1.2 to <2.1: 2, >=2.1: 5); max 17; categories 0-2 / 3-5 / 6-8 / 9-13",
      "max_score": 17,
      "score": 0,
      "sex": "male",
      "surgery_type": "cabg",
      "thakar_category": "0_to_2"
    }
  ],
  "path": "/api/calc/thakar"
}

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/thakar' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"congestive_heart_failure":false,"copd":false,"creatinine_mg_dl":1,"creatinine_umol_l":88.42,"emergency_surgery":false,"insulin_diabetes":false,"lvef_lt_35":false,"preoperative_iabp":false,"previous_cardiac_surgery":false,"sex":"male","surgery_type":"cabg"},{"congestive_heart_failure":false,"copd":false,"creatinine_mg_dl":1,"creatinine_umol_l":88.42,"emergency_surgery":false,"insulin_diabetes":false,"lvef_lt_35":false,"preoperative_iabp":false,"previous_cardiac_surgery":false,"sex":"male","surgery_type":"cabg"}]}'

# 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/thakar' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"congestive_heart_failure":false,"copd":false,"creatinine_mg_dl":1,"creatinine_umol_l":88.42,"emergency_surgery":false,"insulin_diabetes":false,"lvef_lt_35":false,"preoperative_iabp":false,"previous_cardiac_surgery":false,"sex":"male","surgery_type":"cabg"},{"congestive_heart_failure":false,"copd":false,"creatinine_mg_dl":1,"creatinine_umol_l":88.42,"emergency_surgery":false,"insulin_diabetes":false,"lvef_lt_35":false,"preoperative_iabp":false,"previous_cardiac_surgery":false,"sex":"male","surgery_type":"cabg"}]}' \
  | 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%2Fthakar&method=POST
const res = await pay("https://api.magentlab.com/api/calc/thakar", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "congestive_heart_failure": false,
        "copd": false,
        "creatinine_mg_dl": 1,
        "creatinine_umol_l": 88.42,
        "emergency_surgery": false,
        "insulin_diabetes": false,
        "lvef_lt_35": false,
        "preoperative_iabp": false,
        "previous_cardiac_surgery": false,
        "sex": "male",
        "surgery_type": "cabg"
      },
      {
        "congestive_heart_failure": false,
        "copd": false,
        "creatinine_mg_dl": 1,
        "creatinine_umol_l": 88.42,
        "emergency_surgery": false,
        "insulin_diabetes": false,
        "lvef_lt_35": false,
        "preoperative_iabp": false,
        "previous_cardiac_surgery": false,
        "sex": "male",
        "surgery_type": "cabg"
      }
    ]
  }),
});
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/thakar",
        json={
            "items": [
                {
                    "congestive_heart_failure": False,
                    "copd": False,
                    "creatinine_mg_dl": 1,
                    "creatinine_umol_l": 88.42,
                    "emergency_surgery": False,
                    "insulin_diabetes": False,
                    "lvef_lt_35": False,
                    "preoperative_iabp": False,
                    "previous_cardiac_surgery": False,
                    "sex": "male",
                    "surgery_type": "cabg",
                },
                {
                    "congestive_heart_failure": False,
                    "copd": False,
                    "creatinine_mg_dl": 1,
                    "creatinine_umol_l": 88.42,
                    "emergency_surgery": False,
                    "insulin_diabetes": False,
                    "lvef_lt_35": False,
                    "preoperative_iabp": False,
                    "previous_cardiac_surgery": False,
                    "sex": "male",
                    "surgery_type": "cabg",
                },
            ],
        },
    )
    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
26 min agoPassed402166 ms$0.007
5 h agoPassed402311 ms$0.007
10 h agoPassed402171 ms$0.007
15 h agoPassed402142 ms$0.007
19 h agoPassed402315 ms$0.007
Show 10 older checks
24 h agoPassed402253 ms$0.007
28 h agoPassed402168 ms$0.007
32 h agoPassed402338 ms$0.007
36 h agoPassed402266 ms$0.007
40 h agoPassed402223 ms$0.007
45 h agoPassed402162 ms$0.007
2 days agoPassed402376 ms$0.007
2 days agoPassed402142 ms$0.007
2 days agoPassed402271 ms$0.007
3 days agoPassed402147 ms$0.007

History

11 Oct 2026Price changed from $0.005 to $0.007