67trust / 100

Calc Cpes

x402 APIFailing, checked 4 h ago

Bangalore 2023 composite PE shock score for intermediate-risk PE. Six equally weighted caller-assigned flags (elevated troponin per local assay, elevated BNP, moderate or severe RV dysfunction, saddle PE, concomitant DVT, tachycardia ≥100 beats/min), 1 point each, max 6. Integer 0–6 score only; no named bands. magent does not invent biomarker cutoffs, read echo, or take raw heart rate. Not a shock diagnosis, not sPESI/Bova/PESI, not hypotensive PE, and not a medical device.

POST

https://api.magentlab.com/api/calc/cpes

Price: $0.007; per call in USDC
Uptime: 91.4%; last 30 days
Response time: 151 ms; 677 ms slowest 5%
Last check: Failed; 4 h ago, next any minute now

Run a free test call How 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/cpes

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/cpes
content-type: application/json

{
  "items": [
    {
      "concomitant_dvt": false,
      "elevated_bnp": false,
      "elevated_troponin": false,
      "moderate_or_severe_rv_dysfunction": false,
      "saddle_pe": false,
      "tachycardia": false
    },
    {
      "concomitant_dvt": false,
      "elevated_bnp": false,
      "elevated_troponin": false,
      "moderate_or_severe_rv_dysfunction": false,
      "saddle_pe": false,
      "tachycardia": false
    }
  ]
}

Parameters

Parameter	Type	Required	Description
`items`	array of object	Yes

Example response

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

Example response, 100 lines

{
  "count": 2,
  "items": [
    {
      "citation": {
        "authors": "Bangalore S, Horowitz JM, Beam D, Jaber WA, Khandhar S, Toma C, Weinberg MD, Mina B",
        "doi": "10.1016/j.jcin.2023.02.004",
        "id": "bangalore-2023",
        "pmid": "37100559",
        "source": "JACC Cardiovasc Interv. 2023;16(8):958-972",
        "title": "Prevalence and Predictors of Cardiogenic Shock in Intermediate-Risk Pulmonary Embolism: Insights From the FLASH Registry"
      },
      "components": [
        {
          "factor": "elevated_troponin",
          "points": 0,
          "present": false
        },
        {
          "factor": "elevated_bnp",
          "points": 0,
          "present": false
        },
        {
          "factor": "moderate_or_severe_rv_dysfunction",
          "points": 0,
          "present": false
        },
        {
          "factor": "saddle_pe",
          "points": 0,
          "present": false
        },
        {
          "factor": "concomitant_dvt",
          "points": 0,
          "present": false
        },
        {
          "factor": "tachycardia",
          "points": 0,
          "present": 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": "cpes",
      "formula_expression": "CPES = elevated_troponin + elevated_bnp + moderate_or_severe_rv_dysfunction + saddle_pe + concomitant_dvt + tachycardia; each 1 if true; max 6 (Bangalore 2023)",
      "max_score": 6,
      "score": 0
    },
    {
      "citation": {
        "authors": "Bangalore S, Horowitz JM, Beam D, Jaber WA, Khandhar S, Toma C, Weinberg MD, Mina B",
        "doi": "10.1016/j.jcin.2023.02.004",
        "id": "bangalore-2023",
        "pmid": "37100559",
        "source": "JACC Cardiovasc Interv. 2023;16(8):958-972",
        "title": "Prevalence and Predictors of Cardiogenic Shock in Intermediate-Risk Pulmonary Embolism: Insights From the FLASH Registry"
      },
      "components": [
        {
          "factor": "elevated_troponin",
          "points": 0,
          "present": false
        },
        {
          "factor": "elevated_bnp",
          "points": 0,
          "present": false
        },
        {
          "factor": "moderate_or_severe_rv_dysfunction",
          "points": 0,
          "present": false
        },
        {
          "factor": "saddle_pe",
          "points": 0,
          "present": false
        },
        {
          "factor": "concomitant_dvt",
          "points": 0,
          "present": false
        },
        {
          "factor": "tachycardia",
          "points": 0,
          "present": 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": "cpes",
      "formula_expression": "CPES = elevated_troponin + elevated_bnp + moderate_or_severe_rv_dysfunction + saddle_pe + concomitant_dvt + tachycardia; each 1 if true; max 6 (Bangalore 2023)",
      "max_score": 6,
      "score": 0
    }
  ],
  "path": "/api/calc/cpes"
}

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/cpes' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"concomitant_dvt":false,"elevated_bnp":false,"elevated_troponin":false,"moderate_or_severe_rv_dysfunction":false,"saddle_pe":false,"tachycardia":false},{"concomitant_dvt":false,"elevated_bnp":false,"elevated_troponin":false,"moderate_or_severe_rv_dysfunction":false,"saddle_pe":false,"tachycardia":false}]}'

# 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/cpes' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"concomitant_dvt":false,"elevated_bnp":false,"elevated_troponin":false,"moderate_or_severe_rv_dysfunction":false,"saddle_pe":false,"tachycardia":false},{"concomitant_dvt":false,"elevated_bnp":false,"elevated_troponin":false,"moderate_or_severe_rv_dysfunction":false,"saddle_pe":false,"tachycardia":false}]}' \
  | 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%2Fcpes&method=POST
const res = await pay("https://api.magentlab.com/api/calc/cpes", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "concomitant_dvt": false,
        "elevated_bnp": false,
        "elevated_troponin": false,
        "moderate_or_severe_rv_dysfunction": false,
        "saddle_pe": false,
        "tachycardia": false
      },
      {
        "concomitant_dvt": false,
        "elevated_bnp": false,
        "elevated_troponin": false,
        "moderate_or_severe_rv_dysfunction": false,
        "saddle_pe": false,
        "tachycardia": false
      }
    ]
  }),
});
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/cpes",
        json={
            "items": [
                {
                    "concomitant_dvt": False,
                    "elevated_bnp": False,
                    "elevated_troponin": False,
                    "moderate_or_severe_rv_dysfunction": False,
                    "saddle_pe": False,
                    "tachycardia": False,
                },
                {
                    "concomitant_dvt": False,
                    "elevated_bnp": False,
                    "elevated_troponin": False,
                    "moderate_or_severe_rv_dysfunction": False,
                    "saddle_pe": False,
                    "tachycardia": False,
                },
            ],
        },
    )
    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

When	Result	HTTP	Time	Price
4 h ago	Timed out	-	-	-
9 h ago	Timed out	-	-	-
14 h ago	Timed out	-	-	-
19 h ago	Passed	402	136 ms	$0.007
24 h ago	Passed	402	314 ms	$0.007

Show 10 older checks

28 h ago	Passed	402	145 ms	$0.007
33 h ago	Passed	402	285 ms	$0.007
38 h ago	Passed	402	227 ms	$0.007
42 h ago	Passed	402	141 ms	$0.007
46 h ago	Passed	402	139 ms	$0.007
2 days ago	Passed	402	150 ms	$0.007
2 days ago	Passed	402	148 ms	$0.007
2 days ago	Passed	402	145 ms	$0.007
3 days ago	Passed	402	433 ms	$0.007
3 days ago	Passed	402	352 ms	$0.007

History

11 Oct 2026	Price changed from $0.005 to $0.007

Trust score 67/ 100

Availability (30-day uptime)		27 / 30
Valid x402 challenge		15 / 15
Response time		10 / 10
Real paying agents (30 days)		5 / 15
Charges what it lists		0 / 10
Security scan		10 / 10
Verified owner		0 / 10

How the score works

Payment terms

Price: $0.007 per call
Listed at: $0.005 (charges more)
Token: USDC
Networks: Base
Pays to: 0x836B…9Ee2

Real usage

Paying agents: 2 in 30 days
Paid calls: 5 in 30 days
Last paid call: 5 days ago

Source: x402 Bazaar settlement data.

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Trust score

[![ToolVet trust score](https://toolvet.app/badge/calc-cpes.svg)](https://toolvet.app/s/calc-cpes)