68trust / 100

Calc Readmits

x402 APIFailing, checked 1 h ago

Nguyen 2018 first-day AMI READMITS integer score for 30-day all-cause readmission: creatinine >2 mg/dL (6), elevated BNP >=50 or NT-proBNP >=125 pg/mL (8), 1 point per decade over 18, diabetes (4), female sex (2), no PCI within 24 hours (1), SBP <100 mm Hg (3). Table 4 quintiles with mean predicted risk. Not a medical device, not a PCI or discharge order, and not the full-stay model.

POST

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

Price: $0.007; per call in USDC
Uptime: 94.1%; last 30 days
Response time: 160 ms; 739 ms slowest 5%
Last check: Failed; 1 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 1 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/readmits

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/readmits
content-type: application/json

{
  "items": [
    {
      "age_years": 58,
      "creatinine_gt_2": false,
      "diabetes": false,
      "elevated_bnp": false,
      "pci_within_24h": true,
      "sbp_lt_100": false,
      "sex": "male"
    },
    {
      "age_years": 58,
      "creatinine_gt_2": false,
      "diabetes": false,
      "elevated_bnp": false,
      "pci_within_24h": true,
      "sbp_lt_100": false,
      "sex": "male"
    }
  ]
}

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, 134 lines

{
  "count": 2,
  "items": [
    {
      "age_decades": 4,
      "age_years": 58,
      "citation": {
        "authors": "Nguyen OK, Makam AN, Clark C, et al.",
        "doi": "10.1161/JAHA.118.008882",
        "id": "nguyen-2018",
        "pmid": "29666144",
        "source": "J Am Heart Assoc. 2018;7(8):e008882",
        "title": "Predicting 30-Day Hospital Readmissions in Acute Myocardial Infarction: The AMI \"READMITS\" (Renal Function, Elevated Brain Natriuretic Peptide, Age, Diabetes Mellitus, Nonmale Sex, Intervention with Timely Percutaneous Coronary Intervention, and Low Systolic Blood Pressure) Score"
      },
      "components": [
        {
          "factor": "creatinine_gt_2",
          "points": 0,
          "present": false
        },
        {
          "factor": "elevated_bnp",
          "points": 0,
          "present": false
        },
        {
          "factor": "age_years",
          "points": 4,
          "present": true,
          "value": 58
        },
        {
          "factor": "diabetes",
          "points": 0,
          "present": false
        },
        {
          "factor": "sex",
          "points": 0,
          "present": false,
          "value": "male"
        },
        {
          "factor": "no_pci_within_24h",
          "points": 0,
          "present": false
        },
        {
          "factor": "sbp_lt_100",
          "points": 0,
          "present": false
        }
      ],
      "creatinine_gt_2": false,
      "diabetes": 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.",
      "elevated_bnp": false,
      "formula": "readmits",
      "formula_expression": "READMITS = creatinine_gt_2 (6) + elevated_bnp (8) + floor((age_years-18)/10) (1 per decade >18) + diabetes (4) + female (2) + no_pci_within_24h (1) + sbp_lt_100 (3); Nguyen 2018 first-day AMI READMITS Table 2; max 32 at age 100; Table 4 quintiles <=13 extremely_low 3%, 14-15 low 7%, 16-17 moderate 11%, 18-19 high 16%, >=20 extremely_high 35%",
      "max_score": 32,
      "pci_within_24h": true,
      "predicted_readmission_percent": 3,
      "quintile": "extremely_low",
      "sbp_lt_100": false,
      "score": 4,
      "sex": "male"
    },
    {
      "age_decades": 4,
      "age_years": 58,
      "citation": {
        "authors": "Nguyen OK, Makam AN, Clark C, et al.",
        "doi": "10.1161/JAHA.118.008882",
        "id": "nguyen-2018",
        "pmid": "29666144",
        "source": "J Am Heart Assoc. 2018;7(8):e008882",
        "title": "Predicting 30-Day Hospital Readmissions in Acute Myocardial Infarction: The AMI \"READMITS\" (Renal Function, Elevated Brain Natriuretic Peptide, Age, Diabetes Mellitus, Nonmale Sex, Intervention with Timely Percutaneous Coronary Intervention, and Low Systolic Blood Pressure) Score"
      },
      "components": [
        {
          "factor": "creatinine_gt_2",
          "points": 0,
          "present": false
        },
        {
          "factor": "elevated_bnp",
          "points": 0,
          "present": false
        },
        {
          "factor": "age_years",
          "points": 4,
          "present": true,
          "value": 58
        },
        {
          "factor": "diabetes",
          "points": 0,
          "present": false
        },
        {
          "factor": "sex",
          "points": 0,
          "present": false,
          "value": "male"
        },
        {
          "factor": "no_pci_within_24h",
          "points": 0,
          "present": false
        },
        {
          "factor": "sbp_lt_100",
          "points": 0,
          "present": false
        }
      ],
      "creatinine_gt_2": false,
      "diabetes": 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.",
      "elevated_bnp": false,
      "formula": "readmits",
      "formula_expression": "READMITS = creatinine_gt_2 (6) + elevated_bnp (8) + floor((age_years-18)/10) (1 per decade >18) + diabetes (4) + female (2) + no_pci_within_24h (1) + sbp_lt_100 (3); Nguyen 2018 first-day AMI READMITS Table 2; max 32 at age 100; Table 4 quintiles <=13 extremely_low 3%, 14-15 low 7%, 16-17 moderate 11%, 18-19 high 16%, >=20 extremely_high 35%",
      "max_score": 32,
      "pci_within_24h": true,
      "predicted_readmission_percent": 3,
      "quintile": "extremely_low",
      "sbp_lt_100": false,
      "score": 4,
      "sex": "male"
    }
  ],
  "path": "/api/calc/readmits"
}

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/readmits' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age_years":58,"creatinine_gt_2":false,"diabetes":false,"elevated_bnp":false,"pci_within_24h":true,"sbp_lt_100":false,"sex":"male"},{"age_years":58,"creatinine_gt_2":false,"diabetes":false,"elevated_bnp":false,"pci_within_24h":true,"sbp_lt_100":false,"sex":"male"}]}'

# 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/readmits' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age_years":58,"creatinine_gt_2":false,"diabetes":false,"elevated_bnp":false,"pci_within_24h":true,"sbp_lt_100":false,"sex":"male"},{"age_years":58,"creatinine_gt_2":false,"diabetes":false,"elevated_bnp":false,"pci_within_24h":true,"sbp_lt_100":false,"sex":"male"}]}' \
  | 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%2Freadmits&method=POST
const res = await pay("https://api.magentlab.com/api/calc/readmits", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "age_years": 58,
        "creatinine_gt_2": false,
        "diabetes": false,
        "elevated_bnp": false,
        "pci_within_24h": true,
        "sbp_lt_100": false,
        "sex": "male"
      },
      {
        "age_years": 58,
        "creatinine_gt_2": false,
        "diabetes": false,
        "elevated_bnp": false,
        "pci_within_24h": true,
        "sbp_lt_100": false,
        "sex": "male"
      }
    ]
  }),
});
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/readmits",
        json={
            "items": [
                {
                    "age_years": 58,
                    "creatinine_gt_2": False,
                    "diabetes": False,
                    "elevated_bnp": False,
                    "pci_within_24h": True,
                    "sbp_lt_100": False,
                    "sex": "male",
                },
                {
                    "age_years": 58,
                    "creatinine_gt_2": False,
                    "diabetes": False,
                    "elevated_bnp": False,
                    "pci_within_24h": True,
                    "sbp_lt_100": False,
                    "sex": "male",
                },
            ],
        },
    )
    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	Timed out	-	-	-
6 h ago	Timed out	-	-	-
11 h ago	Passed	402	158 ms	$0.007
16 h ago	Passed	402	592 ms	$0.007
20 h ago	Passed	402	312 ms	$0.007

Show 10 older checks

25 h ago	Passed	402	834 ms	$0.007
30 h ago	Passed	402	161 ms	$0.007
34 h ago	Passed	402	739 ms	$0.007
38 h ago	Passed	402	293 ms	$0.007
42 h ago	Passed	402	153 ms	$0.007
47 h ago	Passed	402	467 ms	$0.007
2 days ago	Passed	402	142 ms	$0.007
2 days ago	Passed	402	201 ms	$0.007
2 days ago	Passed	402	167 ms	$0.007
3 days ago	Passed	402	161 ms	$0.007

History

11 Oct 2026	Price changed from $0.005 to $0.007

Trust score 68/ 100

Availability (30-day uptime)		28 / 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: 4 days ago

Source: x402 Bazaar settlement data.

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Trust score

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