ToolVet
68trust / 100

Calc Gwtg Hf

by magent in Other

x402 APIFailing, checked 4 h ago

Peterson 2010 GWTG-HF Figure 2 integer points for in-hospital mortality in hospitalized heart failure: age 0-28, systolic BP 0-28, BUN 0-28, sodium 0-4, heart rate 0-8, COPD +2, caller-assigned nonblack (black=false) +3. Total 0-100. magent does not assign race. Not a diagnosis.

POST
https://api.magentlab.com/api/calc/gwtg_hf
Price
$0.007
per call in USDC
Uptime
94.1%
last 30 days
Response time
157 ms
372 ms slowest 5%
Last check
Failed
4 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Latest check failed 4 h ago: Timed out

Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://api.magentlab.com/api/calc/gwtg_hf

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/gwtg_hf
content-type: application/json

{
  "items": [
    {
      "age": 70,
      "black": true,
      "bun_mg_dl": 20,
      "copd": false,
      "heart_rate_bpm": 80,
      "sbp_mm_hg": 130,
      "sodium_mmol_l": 138
    },
    {
      "age": 70,
      "black": true,
      "bun_mg_dl": 20,
      "copd": false,
      "heart_rate_bpm": 80,
      "sbp_mm_hg": 130,
      "sodium_mmol_l": 138
    }
  ]
}

Parameters

ParameterTypeRequiredDescription
itemsarray of objectYes

Example response

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

Example response, 136 lines
{
  "count": 2,
  "items": [
    {
      "age": 70,
      "black": true,
      "bun_mg_dl": 20,
      "citation": {
        "authors": "Peterson PN, Rumsfeld JS, Liang L, Albert NM, Hernandez AF, Peterson ED, Fonarow GC, Masoudi FA",
        "doi": "10.1161/CIRCOUTCOMES.109.854877",
        "id": "peterson-2010-gwtg-hf",
        "pmid": "20123668",
        "source": "Circ Cardiovasc Qual Outcomes. 2010;3(1):25-32",
        "title": "A validated risk score for in-hospital mortality in patients with heart failure from the American Heart Association Get With the Guidelines Program"
      },
      "components": [
        {
          "factor": "age",
          "points": 17,
          "present": true,
          "value": 70
        },
        {
          "factor": "sbp_mm_hg",
          "points": 13,
          "present": true,
          "value": 130
        },
        {
          "factor": "bun_mg_dl",
          "points": 4,
          "present": true,
          "value": 20
        },
        {
          "factor": "sodium_mmol_l",
          "points": 1,
          "present": true,
          "value": 138
        },
        {
          "factor": "heart_rate_bpm",
          "points": 1,
          "present": true,
          "value": 80
        },
        {
          "factor": "copd",
          "points": 0,
          "present": false
        },
        {
          "factor": "nonblack",
          "points": 0,
          "present": false,
          "value": true
        }
      ],
      "copd": false,
      "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": "gwtg_hf",
      "formula_expression": "GWTG-HF = age (<=19 0, 20-29 3, 30-39 6, 40-49 8, 50-59 11, 60-69 14, 70-79 17, 80-89 19, 90-99 22, 100-109 25, >=110 28) + sbp_mm_hg (50-59 28, 60-69 26, 70-79 24, 80-89 23, 90-99 21, 100-109 19, 110-119 17, 120-129 15, 130-139 13, 140-149 11, 150-159 9, 160-169 8, 170-179 6, 180-189 4, 190-199 2, >=200 0) + bun_mg_dl (<=9 0, 10-19 2, 20-29 4, 30-39 6, 40-49 8, 50-59 9, 60-69 11, 70-79 13, 80-89 15, 90-99 17, 100-109 19, 110-119 21, 120-129 23, 130-139 25, 140-149 27, >=150 28) + sodium_mmol_l (<=130 4, 131-133 3, 134-136 2, 137-138 1, >=139 0) + heart_rate_bpm (<=79 0, 80-84 1, 85-89 3, 90-94 4, 95-99 5, 100-104 6, >=105 8) + copd 2 + nonblack (black=false) 3; Peterson 2010 Figure 2 integer points; total clamped to 0-100",
      "heart_rate_bpm": 80,
      "max_score": 100,
      "sbp_mm_hg": 130,
      "score": 36,
      "sodium_mmol_l": 138
    },
    {
      "age": 70,
      "black": true,
      "bun_mg_dl": 20,
      "citation": {
        "authors": "Peterson PN, Rumsfeld JS, Liang L, Albert NM, Hernandez AF, Peterson ED, Fonarow GC, Masoudi FA",
        "doi": "10.1161/CIRCOUTCOMES.109.854877",
        "id": "peterson-2010-gwtg-hf",
        "pmid": "20123668",
        "source": "Circ Cardiovasc Qual Outcomes. 2010;3(1):25-32",
        "title": "A validated risk score for in-hospital mortality in patients with heart failure from the American Heart Association Get With the Guidelines Program"
      },
      "components": [
        {
          "factor": "age",
          "points": 17,
          "present": true,
          "value": 70
        },
        {
          "factor": "sbp_mm_hg",
          "points": 13,
          "present": true,
          "value": 130
        },
        {
          "factor": "bun_mg_dl",
          "points": 4,
          "present": true,
          "value": 20
        },
        {
          "factor": "sodium_mmol_l",
          "points": 1,
          "present": true,
          "value": 138
        },
        {
          "factor": "heart_rate_bpm",
          "points": 1,
          "present": true,
          "value": 80
        },
        {
          "factor": "copd",
          "points": 0,
          "present": false
        },
        {
          "factor": "nonblack",
          "points": 0,
          "present": false,
          "value": true
        }
      ],
      "copd": false,
      "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": "gwtg_hf",
      "formula_expression": "GWTG-HF = age (<=19 0, 20-29 3, 30-39 6, 40-49 8, 50-59 11, 60-69 14, 70-79 17, 80-89 19, 90-99 22, 100-109 25, >=110 28) + sbp_mm_hg (50-59 28, 60-69 26, 70-79 24, 80-89 23, 90-99 21, 100-109 19, 110-119 17, 120-129 15, 130-139 13, 140-149 11, 150-159 9, 160-169 8, 170-179 6, 180-189 4, 190-199 2, >=200 0) + bun_mg_dl (<=9 0, 10-19 2, 20-29 4, 30-39 6, 40-49 8, 50-59 9, 60-69 11, 70-79 13, 80-89 15, 90-99 17, 100-109 19, 110-119 21, 120-129 23, 130-139 25, 140-149 27, >=150 28) + sodium_mmol_l (<=130 4, 131-133 3, 134-136 2, 137-138 1, >=139 0) + heart_rate_bpm (<=79 0, 80-84 1, 85-89 3, 90-94 4, 95-99 5, 100-104 6, >=105 8) + copd 2 + nonblack (black=false) 3; Peterson 2010 Figure 2 integer points; total clamped to 0-100",
      "heart_rate_bpm": 80,
      "max_score": 100,
      "sbp_mm_hg": 130,
      "score": 36,
      "sodium_mmol_l": 138
    }
  ],
  "path": "/api/calc/gwtg_hf"
}

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/gwtg_hf' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age":70,"black":true,"bun_mg_dl":20,"copd":false,"heart_rate_bpm":80,"sbp_mm_hg":130,"sodium_mmol_l":138},{"age":70,"black":true,"bun_mg_dl":20,"copd":false,"heart_rate_bpm":80,"sbp_mm_hg":130,"sodium_mmol_l":138}]}'

# 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/gwtg_hf' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age":70,"black":true,"bun_mg_dl":20,"copd":false,"heart_rate_bpm":80,"sbp_mm_hg":130,"sodium_mmol_l":138},{"age":70,"black":true,"bun_mg_dl":20,"copd":false,"heart_rate_bpm":80,"sbp_mm_hg":130,"sodium_mmol_l":138}]}' \
  | 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%2Fgwtg_hf&method=POST
const res = await pay("https://api.magentlab.com/api/calc/gwtg_hf", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "age": 70,
        "black": true,
        "bun_mg_dl": 20,
        "copd": false,
        "heart_rate_bpm": 80,
        "sbp_mm_hg": 130,
        "sodium_mmol_l": 138
      },
      {
        "age": 70,
        "black": true,
        "bun_mg_dl": 20,
        "copd": false,
        "heart_rate_bpm": 80,
        "sbp_mm_hg": 130,
        "sodium_mmol_l": 138
      }
    ]
  }),
});
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/gwtg_hf",
        json={
            "items": [
                {
                    "age": 70,
                    "black": True,
                    "bun_mg_dl": 20,
                    "copd": False,
                    "heart_rate_bpm": 80,
                    "sbp_mm_hg": 130,
                    "sodium_mmol_l": 138,
                },
                {
                    "age": 70,
                    "black": True,
                    "bun_mg_dl": 20,
                    "copd": False,
                    "heart_rate_bpm": 80,
                    "sbp_mm_hg": 130,
                    "sodium_mmol_l": 138,
                },
            ],
        },
    )
    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
4 h agoTimed out---
9 h agoTimed out---
14 h agoPassed402292 ms$0.007
18 h agoPassed402372 ms$0.007
23 h agoPassed402145 ms$0.007
Show 10 older checks
28 h agoPassed402166 ms$0.007
32 h agoPassed402152 ms$0.007
37 h agoPassed402158 ms$0.007
41 h agoPassed402144 ms$0.007
45 h agoPassed402142 ms$0.007
2 days agoPassed402241 ms$0.007
2 days agoPassed402140 ms$0.007
2 days agoPassed402157 ms$0.007
3 days agoPassed402193 ms$0.007
3 days agoPassed402141 ms$0.007

History

11 Oct 2026Price changed from $0.005 to $0.007