Calc Hacor

{
  "count": 2,
  "items": [
    {
      "citation": {
        "authors": "Duan J, Han X, Bai L, Zhou L, Huang S",
        "doi": "10.1007/s00134-016-4601-3",
        "id": "duan-2017",
        "pmid": "27812731",
        "source": "Intensive Care Med. 2017;43(2):192-199",
        "title": "Assessment of heart rate, acidosis, consciousness, oxygenation, and respiratory rate to predict noninvasive ventilation failure in hypoxemic patients"
      },
      "components": [
        {
          "factor": "heart_rate_bpm",
          "points": 0,
          "present": false,
          "value": 80
        },
        {
          "factor": "ph",
          "points": 0,
          "present": false,
          "value": 7.4
        },
        {
          "factor": "gcs",
          "points": 0,
          "present": false,
          "value": 15
        },
        {
          "factor": "pf_ratio",
          "points": 0,
          "present": false,
          "value": 300
        },
        {
          "factor": "respiratory_rate",
          "points": 0,
          "present": false,
          "value": 18
        }
      ],
      "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": "hacor",
      "formula_expression": "HACOR = HR(≤120→0, ≥121→1) + pH(≥7.35→0, 7.30–7.34→2, 7.25–7.29→3, <7.25→4) + GCS(15→0, 13–14→2, 11–12→5, ≤10→10) + P/F(≥201→0, 176–200→2, 151–175→3, 126–150→4, 101–125→5, ≤100→6) + RR(≤30→0, 31–35→1, 36–40→2, 41–45→3, ≥46→4); Duan 2017 ESM Table 2; max 25; low ≤5, high >5",
      "gcs": 15,
      "hacor_band": "low",
      "heart_rate_bpm": 80,
      "max_score": 25,
      "pf_ratio": 300,
      "ph": 7.4,
      "respiratory_rate": 18,
      "score": 0
    },
    {
      "citation": {
        "authors": "Duan J, Han X, Bai L, Zhou L, Huang S",
        "doi": "10.1007/s00134-016-4601-3",
        "id": "duan-2017",
        "pmid": "27812731",
        "source": "Intensive Care Med. 2017;43(2):192-199",
        "title": "Assessment of heart rate, acidosis, consciousness, oxygenation, and respiratory rate to predict noninvasive ventilation failure in hypoxemic patients"
      },
      "components": [
        {
          "factor": "heart_rate_bpm",
          "points": 0,
          "present": false,
          "value": 80
        },
        {
          "factor": "ph",
          "points": 0,
          "present": false,
          "value": 7.4
        },
        {
          "factor": "gcs",
          "points": 0,
          "present": false,
          "value": 15
        },
        {
          "factor": "pf_ratio",
          "points": 0,
          "present": false,
          "value": 300
        },
        {
          "factor": "respiratory_rate",
          "points": 0,
          "present": false,
          "value": 18
        }
      ],
      "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": "hacor",
      "formula_expression": "HACOR = HR(≤120→0, ≥121→1) + pH(≥7.35→0, 7.30–7.34→2, 7.25–7.29→3, <7.25→4) + GCS(15→0, 13–14→2, 11–12→5, ≤10→10) + P/F(≥201→0, 176–200→2, 151–175→3, 126–150→4, 101–125→5, ≤100→6) + RR(≤30→0, 31–35→1, 36–40→2, 41–45→3, ≥46→4); Duan 2017 ESM Table 2; max 25; low ≤5, high >5",
      "gcs": 15,
      "hacor_band": "low",
      "heart_rate_bpm": 80,
      "max_score": 25,
      "pf_ratio": 300,
      "ph": 7.4,
      "respiratory_rate": 18,
      "score": 0
    }
  ],
  "path": "/api/calc/hacor"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.magentlab.com/api/calc/hacor' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"gcs":15,"heart_rate_bpm":80,"pf_ratio":300,"ph":7.4,"respiratory_rate":18},{"gcs":15,"heart_rate_bpm":80,"pf_ratio":300,"ph":7.4,"respiratory_rate":18}]}'

# 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/hacor' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"gcs":15,"heart_rate_bpm":80,"pf_ratio":300,"ph":7.4,"respiratory_rate":18},{"gcs":15,"heart_rate_bpm":80,"pf_ratio":300,"ph":7.4,"respiratory_rate":18}]}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// 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%2Fhacor&method=POST
const res = await pay("https://api.magentlab.com/api/calc/hacor", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "gcs": 15,
        "heart_rate_bpm": 80,
        "pf_ratio": 300,
        "ph": 7.4,
        "respiratory_rate": 18
      },
      {
        "gcs": 15,
        "heart_rate_bpm": 80,
        "pf_ratio": 300,
        "ph": 7.4,
        "respiratory_rate": 18
      }
    ]
  }),
});
console.log(res.status, await res.text());

# 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/hacor",
        json={
            "items": [
                {
                    "gcs": 15,
                    "heart_rate_bpm": 80,
                    "pf_ratio": 300,
                    "ph": 7.4,
                    "respiratory_rate": 18,
                },
                {
                    "gcs": 15,
                    "heart_rate_bpm": 80,
                    "pf_ratio": 300,
                    "ph": 7.4,
                    "respiratory_rate": 18,
                },
            ],
        },
    )
    print(res.status_code, res.text)