ToolVet
71trust / 100

Calc Spesi

by magent in Security & trust

x402 APIPassing, checked 5 h ago

sPESI (simplified Pulmonary Embolism Severity Index) from Jiménez 2010: 1 point each for age >80, cancer, chronic cardiopulmonary disease (one combined item), heart rate ≥110, systolic BP <100 mm Hg, and SpO2 <90%; max 6. Score 0 is low risk; ≥1 is high risk. Only for already diagnosed acute PE as in the paper. Not a diagnosis, not an outpatient-treatment protocol, and not original PESI classes.

POST
https://api.magentlab.com/api/calc/spesi
Price
$0.007
per call in USDC
Uptime
100%
last 30 days
Response time
157 ms
432 ms slowest 5%
Last check
Passed
5 h 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://api.magentlab.com/api/calc/spesi

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/spesi
content-type: application/json

{
  "items": [
    {
      "age": 70,
      "cancer": false,
      "chronic_cardiopulmonary_disease": false,
      "heart_rate_bpm": 80,
      "spo2_percent": 96,
      "systolic_mm_hg": 120
    },
    {
      "age": 70,
      "cancer": false,
      "chronic_cardiopulmonary_disease": false,
      "heart_rate_bpm": 80,
      "spo2_percent": 96,
      "systolic_mm_hg": 120
    }
  ]
}

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": [
    {
      "age_years": 70,
      "citation": {
        "authors": "Jiménez D, Aujesky D, Moores L, et al.",
        "doi": "10.1001/archinternmed.2010.199",
        "id": "jimenez-2010",
        "source": "Arch Intern Med. 2010;170(15):1383-1389",
        "title": "Simplification of the pulmonary embolism severity index for prognostication in patients with acute symptomatic pulmonary embolism"
      },
      "components": [
        {
          "factor": "age_gt_80",
          "points": 0,
          "present": false,
          "value": 70
        },
        {
          "factor": "cancer",
          "points": 0,
          "present": false
        },
        {
          "factor": "chronic_cardiopulmonary_disease",
          "points": 0,
          "present": false
        },
        {
          "factor": "heart_rate_ge_110",
          "points": 0,
          "present": false,
          "value": 80
        },
        {
          "factor": "systolic_mm_hg_lt_100",
          "points": 0,
          "present": false,
          "value": 120
        },
        {
          "factor": "spo2_lt_90",
          "points": 0,
          "present": false,
          "value": 96
        }
      ],
      "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": "spesi",
      "formula_expression": "sPESI = age_gt_80 + cancer + chronic_cardiopulmonary_disease + heart_rate_ge_110 + systolic_mm_hg_lt_100 + spo2_lt_90; each 1 if present; max 6; 0 low, >=1 high",
      "max_score": 6,
      "score": 0,
      "spesi_risk": "low"
    },
    {
      "age_years": 70,
      "citation": {
        "authors": "Jiménez D, Aujesky D, Moores L, et al.",
        "doi": "10.1001/archinternmed.2010.199",
        "id": "jimenez-2010",
        "source": "Arch Intern Med. 2010;170(15):1383-1389",
        "title": "Simplification of the pulmonary embolism severity index for prognostication in patients with acute symptomatic pulmonary embolism"
      },
      "components": [
        {
          "factor": "age_gt_80",
          "points": 0,
          "present": false,
          "value": 70
        },
        {
          "factor": "cancer",
          "points": 0,
          "present": false
        },
        {
          "factor": "chronic_cardiopulmonary_disease",
          "points": 0,
          "present": false
        },
        {
          "factor": "heart_rate_ge_110",
          "points": 0,
          "present": false,
          "value": 80
        },
        {
          "factor": "systolic_mm_hg_lt_100",
          "points": 0,
          "present": false,
          "value": 120
        },
        {
          "factor": "spo2_lt_90",
          "points": 0,
          "present": false,
          "value": 96
        }
      ],
      "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": "spesi",
      "formula_expression": "sPESI = age_gt_80 + cancer + chronic_cardiopulmonary_disease + heart_rate_ge_110 + systolic_mm_hg_lt_100 + spo2_lt_90; each 1 if present; max 6; 0 low, >=1 high",
      "max_score": 6,
      "score": 0,
      "spesi_risk": "low"
    }
  ],
  "path": "/api/calc/spesi"
}

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/spesi' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age":70,"cancer":false,"chronic_cardiopulmonary_disease":false,"heart_rate_bpm":80,"spo2_percent":96,"systolic_mm_hg":120},{"age":70,"cancer":false,"chronic_cardiopulmonary_disease":false,"heart_rate_bpm":80,"spo2_percent":96,"systolic_mm_hg":120}]}'

# 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/spesi' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age":70,"cancer":false,"chronic_cardiopulmonary_disease":false,"heart_rate_bpm":80,"spo2_percent":96,"systolic_mm_hg":120},{"age":70,"cancer":false,"chronic_cardiopulmonary_disease":false,"heart_rate_bpm":80,"spo2_percent":96,"systolic_mm_hg":120}]}' \
  | 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%2Fspesi&method=POST
const res = await pay("https://api.magentlab.com/api/calc/spesi", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "age": 70,
        "cancer": false,
        "chronic_cardiopulmonary_disease": false,
        "heart_rate_bpm": 80,
        "spo2_percent": 96,
        "systolic_mm_hg": 120
      },
      {
        "age": 70,
        "cancer": false,
        "chronic_cardiopulmonary_disease": false,
        "heart_rate_bpm": 80,
        "spo2_percent": 96,
        "systolic_mm_hg": 120
      }
    ]
  }),
});
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/spesi",
        json={
            "items": [
                {
                    "age": 70,
                    "cancer": False,
                    "chronic_cardiopulmonary_disease": False,
                    "heart_rate_bpm": 80,
                    "spo2_percent": 96,
                    "systolic_mm_hg": 120,
                },
                {
                    "age": 70,
                    "cancer": False,
                    "chronic_cardiopulmonary_disease": False,
                    "heart_rate_bpm": 80,
                    "spo2_percent": 96,
                    "systolic_mm_hg": 120,
                },
            ],
        },
    )
    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
5 h agoPassed402238 ms$0.007
9 h agoPassed402231 ms$0.007
14 h agoPassed402145 ms$0.007
19 h agoPassed402148 ms$0.007
23 h agoPassed402157 ms$0.007
Show 10 older checks
27 h agoPassed402140 ms$0.007
31 h agoPassed402135 ms$0.007
36 h agoPassed402139 ms$0.007
40 h agoPassed402432 ms$0.007
44 h agoPassed402464 ms$0.007
2 days agoPassed402160 ms$0.007
2 days agoPassed402150 ms$0.007
2 days agoPassed402313 ms$0.007
3 days agoPassed402279 ms$0.007
3 days agoPassed402389 ms$0.007

History

11 Oct 2026Price changed from $0.005 to $0.007