71trust / 100

Calc Utrs

by magent in Other

x402 APIPassing, checked 1 h ago

Webb 2022 Table 6 simplified score for 14-day hospitalization and 28-day mortality. Age decade lookup 0-10=0.5 through >100=5.5. Two points: diabetes, severe immunocompromise, obesity (BMI ≥30), caller-assigned community of color. One point: male sex, dyspnea, hypertension, CAD, arrhythmia, CHF, CKD, chronic pulmonary, liver, cerebrovascular, neurologic disease. score_ge_6 at Table 7 Youden ≥6. Not a diagnosis or allocation order.

POST

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

Price: $0.007; per call in USDC
Uptime: 100%; last 30 days
Response time: 173 ms; 368 ms slowest 5%
Last check: Passed; 1 h ago, next any minute now

Run a free test call How 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/utrs

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/utrs
content-type: application/json

{
  "items": [
    {
      "age": 35,
      "cardiac_arrhythmia": false,
      "cerebrovascular_disease": false,
      "chronic_kidney_disease": false,
      "chronic_liver_disease": false,
      "chronic_neurologic_disease": false,
      "chronic_pulmonary_disease": false,
      "community_of_color": false,
      "congestive_heart_failure": false,
      "coronary_artery_disease": false,
      "diabetes": false,
      "dyspnea": false,
      "hypertension": false,
      "obesity": false,
      "severe_immunocompromise": false,
      "sex": "female"
    },
    {
      "age": 35,
      "cardiac_arrhythmia": false,
      "cerebrovascular_disease": false,
      "chronic_kidney_disease": false,
      "chronic_liver_disease": false,
      "chronic_neurologic_disease": false,
      "chronic_pulmonary_disease": false,
      "community_of_color": false,
      "congestive_heart_failure": false,
      "coronary_artery_disease": false,
      "diabetes": false,
      "dyspnea": false,
      "hypertension": false,
      "obesity": false,
      "severe_immunocompromise": false,
      "sex": "female"
    }
  ]
}

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, 210 lines

{
  "count": 2,
  "items": [
    {
      "age": 35,
      "citation": {
        "authors": "Webb BJ, Levin NM, Grisel N, Brown SM, Peltan ID, Spivak ES, et al.",
        "doi": "10.1371/journal.pone.0261508",
        "id": "webb-2022-utah-covid",
        "pmid": "35239664",
        "source": "PLoS One. 2022;17(3):e0261508",
        "title": "Simple scoring tool to estimate risk of hospitalization and mortality in ambulatory and emergency department patients with COVID-19"
      },
      "components": [
        {
          "factor": "male",
          "points": 0,
          "present": false
        },
        {
          "factor": "age",
          "points": 2,
          "present": true,
          "value": 35
        },
        {
          "factor": "community_of_color",
          "points": 0,
          "present": false
        },
        {
          "factor": "diabetes",
          "points": 0,
          "present": false
        },
        {
          "factor": "severe_immunocompromise",
          "points": 0,
          "present": false
        },
        {
          "factor": "obesity",
          "points": 0,
          "present": false
        },
        {
          "factor": "hypertension",
          "points": 0,
          "present": false
        },
        {
          "factor": "coronary_artery_disease",
          "points": 0,
          "present": false
        },
        {
          "factor": "cardiac_arrhythmia",
          "points": 0,
          "present": false
        },
        {
          "factor": "congestive_heart_failure",
          "points": 0,
          "present": false
        },
        {
          "factor": "chronic_kidney_disease",
          "points": 0,
          "present": false
        },
        {
          "factor": "chronic_pulmonary_disease",
          "points": 0,
          "present": false
        },
        {
          "factor": "chronic_liver_disease",
          "points": 0,
          "present": false
        },
        {
          "factor": "cerebrovascular_disease",
          "points": 0,
          "present": false
        },
        {
          "factor": "chronic_neurologic_disease",
          "points": 0,
          "present": false
        },
        {
          "factor": "dyspnea",
          "points": 0,
          "present": false
        }
      ],
      "cutpoint": 6,
      "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": "utah-covid",
      "formula_expression": "Webb 2022 Table 6: age 0-10=0.5, 11-20=1, 21-30=1.5, 31-40=2, 41-50=2.5, 51-60=3, 61-70=3.5, 71-80=4, 81-90=4.5, 91-100=5, >100=5.5 (printed decade lookup, not floor(age/10)*0.5); diabetes, severe immunocompromise, obesity (Methods BMI ≥30; Table 6 label BMI>30), community of color 2 each; male sex, dyspnea, hypertension, CAD, cardiac arrhythmia, CHF, CKD, chronic pulmonary disease, chronic liver disease, cerebrovascular disease, chronic neurologic disease 1 each; max 24.5; score_ge_6 iff score ≥6 (Table 7 Youden)",
      "max_score": 24.5,
      "score": 2,
      "score_ge_6": false,
      "sex": "female"
    },
    {
      "age": 35,
      "citation": {
        "authors": "Webb BJ, Levin NM, Grisel N, Brown SM, Peltan ID, Spivak ES, et al.",
        "doi": "10.1371/journal.pone.0261508",
        "id": "webb-2022-utah-covid",
        "pmid": "35239664",
        "source": "PLoS One. 2022;17(3):e0261508",
        "title": "Simple scoring tool to estimate risk of hospitalization and mortality in ambulatory and emergency department patients with COVID-19"
      },
      "components": [
        {
          "factor": "male",
          "points": 0,
          "present": false
        },
        {
          "factor": "age",
          "points": 2,
          "present": true,
          "value": 35
        },
        {
          "factor": "community_of_color",
          "points": 0,
          "present": false
        },
        {
          "factor": "diabetes",
          "points": 0,
          "present": false
        },
        {
          "factor": "severe_immunocompromise",
          "points": 0,
          "present": false
        },
        {
          "factor": "obesity",
          "points": 0,
          "present": false
        },
        {
          "factor": "hypertension",
          "points": 0,
          "present": false
        },
        {
          "factor": "coronary_artery_disease",
          "points": 0,
          "present": false
        },
        {
          "factor": "cardiac_arrhythmia",
          "points": 0,
          "present": false
        },
        {
          "factor": "congestive_heart_failure",
          "points": 0,
          "present": false
        },
        {
          "factor": "chronic_kidney_disease",
          "points": 0,
          "present": false
        },
        {
          "factor": "chronic_pulmonary_disease",
          "points": 0,
          "present": false
        },
        {
          "factor": "chronic_liver_disease",
          "points": 0,
          "present": false
        },
        {
          "factor": "cerebrovascular_disease",
          "points": 0,
          "present": false
        },
        {
          "factor": "chronic_neurologic_disease",
          "points": 0,
          "present": false
        },
        {
          "factor": "dyspnea",
          "points": 0,
          "present": false
        }
      ],
      "cutpoint": 6,
      "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": "utah-covid",
      "formula_expression": "Webb 2022 Table 6: age 0-10=0.5, 11-20=1, 21-30=1.5, 31-40=2, 41-50=2.5, 51-60=3, 61-70=3.5, 71-80=4, 81-90=4.5, 91-100=5, >100=5.5 (printed decade lookup, not floor(age/10)*0.5); diabetes, severe immunocompromise, obesity (Methods BMI ≥30; Table 6 label BMI>30), community of color 2 each; male sex, dyspnea, hypertension, CAD, cardiac arrhythmia, CHF, CKD, chronic pulmonary disease, chronic liver disease, cerebrovascular disease, chronic neurologic disease 1 each; max 24.5; score_ge_6 iff score ≥6 (Table 7 Youden)",
      "max_score": 24.5,
      "score": 2,
      "score_ge_6": false,
      "sex": "female"
    }
  ],
  "path": "/api/calc/utrs"
}

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/utrs' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age":35,"cardiac_arrhythmia":false,"cerebrovascular_disease":false,"chronic_kidney_disease":false,"chronic_liver_disease":false,"chronic_neurologic_disease":false,"chronic_pulmonary_disease":false,"community_of_color":false,"congestive_heart_failure":false,"coronary_artery_disease":false,"diabetes":false,"dyspnea":false,"hypertension":false,"obesity":false,"severe_immunocompromise":false,"sex":"female"},{"age":35,"cardiac_arrhythmia":false,"cerebrovascular_disease":false,"chronic_kidney_disease":false,"chronic_liver_disease":false,"chronic_neurologic_disease":false,"chronic_pulmonary_disease":false,"community_of_color":false,"congestive_heart_failure":false,"coronary_artery_disease":false,"diabetes":false,"dyspnea":false,"hypertension":false,"obesity":false,"severe_immunocompromise":false,"sex":"female"}]}'

# 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/utrs' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age":35,"cardiac_arrhythmia":false,"cerebrovascular_disease":false,"chronic_kidney_disease":false,"chronic_liver_disease":false,"chronic_neurologic_disease":false,"chronic_pulmonary_disease":false,"community_of_color":false,"congestive_heart_failure":false,"coronary_artery_disease":false,"diabetes":false,"dyspnea":false,"hypertension":false,"obesity":false,"severe_immunocompromise":false,"sex":"female"},{"age":35,"cardiac_arrhythmia":false,"cerebrovascular_disease":false,"chronic_kidney_disease":false,"chronic_liver_disease":false,"chronic_neurologic_disease":false,"chronic_pulmonary_disease":false,"community_of_color":false,"congestive_heart_failure":false,"coronary_artery_disease":false,"diabetes":false,"dyspnea":false,"hypertension":false,"obesity":false,"severe_immunocompromise":false,"sex":"female"}]}' \
  | 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%2Futrs&method=POST
const res = await pay("https://api.magentlab.com/api/calc/utrs", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "age": 35,
        "cardiac_arrhythmia": false,
        "cerebrovascular_disease": false,
        "chronic_kidney_disease": false,
        "chronic_liver_disease": false,
        "chronic_neurologic_disease": false,
        "chronic_pulmonary_disease": false,
        "community_of_color": false,
        "congestive_heart_failure": false,
        "coronary_artery_disease": false,
        "diabetes": false,
        "dyspnea": false,
        "hypertension": false,
        "obesity": false,
        "severe_immunocompromise": false,
        "sex": "female"
      },
      {
        "age": 35,
        "cardiac_arrhythmia": false,
        "cerebrovascular_disease": false,
        "chronic_kidney_disease": false,
        "chronic_liver_disease": false,
        "chronic_neurologic_disease": false,
        "chronic_pulmonary_disease": false,
        "community_of_color": false,
        "congestive_heart_failure": false,
        "coronary_artery_disease": false,
        "diabetes": false,
        "dyspnea": false,
        "hypertension": false,
        "obesity": false,
        "severe_immunocompromise": false,
        "sex": "female"
      }
    ]
  }),
});
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/utrs",
        json={
            "items": [
                {
                    "age": 35,
                    "cardiac_arrhythmia": False,
                    "cerebrovascular_disease": False,
                    "chronic_kidney_disease": False,
                    "chronic_liver_disease": False,
                    "chronic_neurologic_disease": False,
                    "chronic_pulmonary_disease": False,
                    "community_of_color": False,
                    "congestive_heart_failure": False,
                    "coronary_artery_disease": False,
                    "diabetes": False,
                    "dyspnea": False,
                    "hypertension": False,
                    "obesity": False,
                    "severe_immunocompromise": False,
                    "sex": "female",
                },
                {
                    "age": 35,
                    "cardiac_arrhythmia": False,
                    "cerebrovascular_disease": False,
                    "chronic_kidney_disease": False,
                    "chronic_liver_disease": False,
                    "chronic_neurologic_disease": False,
                    "chronic_pulmonary_disease": False,
                    "community_of_color": False,
                    "congestive_heart_failure": False,
                    "coronary_artery_disease": False,
                    "diabetes": False,
                    "dyspnea": False,
                    "hypertension": False,
                    "obesity": False,
                    "severe_immunocompromise": False,
                    "sex": "female",
                },
            ],
        },
    )
    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
1 h ago	Passed	402	142 ms	$0.007
6 h ago	Passed	402	184 ms	$0.007
11 h ago	Passed	402	157 ms	$0.007
16 h ago	Passed	402	156 ms	$0.007
20 h ago	Passed	402	290 ms	$0.007

Show 10 older checks

25 h ago	Passed	402	173 ms	$0.007
29 h ago	Passed	402	181 ms	$0.007
33 h ago	Passed	402	189 ms	$0.007
37 h ago	Passed	402	184 ms	$0.007
42 h ago	Passed	402	163 ms	$0.007
46 h ago	Passed	402	260 ms	$0.007
2 days ago	Passed	402	169 ms	$0.007
2 days ago	Passed	402	164 ms	$0.007
2 days ago	Passed	402	368 ms	$0.007
3 days ago	Passed	402	212 ms	$0.007

History

11 Oct 2026	Price changed from $0.005 to $0.007

Trust score 71/ 100

Availability (30-day uptime)		30 / 30
Valid x402 challenge		15 / 15
Response time		10 / 10
Real paying agents (30 days)		6 / 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: 3 in 30 days
Paid calls: 6 in 30 days
Last paid call: 3 days ago

Source: x402 Bazaar settlement data.

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Trust score

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