Calc Kawasaki

{
  "count": 2,
  "items": [
    {
      "bilateral_conjunctival_injection": true,
      "cervical_lymphadenopathy": true,
      "citation": {
        "authors": "McCrindle BW, Rowley AH, Newburger JW, Burns JC, Bolger AF, Gewitz M, Baker AL, Jackson MA, Takahashi M, Shah PB, Kobayashi T, Wu MH, Saji TT, Pahl E",
        "doi": "10.1161/CIR.0000000000000484",
        "id": "mccrindle-2017",
        "pmid": "28356445",
        "source": "Circulation. 2017;135(17):e927-e999",
        "title": "Diagnosis, Treatment, and Long-Term Management of Kawasaki Disease: A Scientific Statement for Health Professionals From the American Heart Association"
      },
      "classification": "complete",
      "criteria": [
        {
          "factor": "fever_days_ge_4",
          "met": true,
          "value": 5
        },
        {
          "factor": "oral_mucosal_changes",
          "met": true
        },
        {
          "factor": "bilateral_conjunctival_injection",
          "met": true
        },
        {
          "factor": "rash",
          "met": true
        },
        {
          "factor": "extremity_changes",
          "met": true
        },
        {
          "factor": "cervical_lymphadenopathy",
          "met": true
        },
        {
          "factor": "principal_feature_count_ge_4",
          "met": true,
          "value": 5
        }
      ],
      "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.",
      "extremity_changes": true,
      "fever_days": 5,
      "formula": "kawasaki",
      "formula_expression": "complete iff principal_feature_count >= 4 and fever_days >= 4 (McCrindle 2017; classic KD with fever_days >= 5 and >=4 features, or 4 days of fever when >=4 principal features). principal_feature_count is the number of true flags among oral_mucosal_changes, bilateral_conjunctival_injection, rash, extremity_changes, cervical_lymphadenopathy. Not incomplete-KD labs/echo. Not the 3-day clinician exception",
      "oral_mucosal_changes": true,
      "principal_feature_count": 5,
      "rash": true
    },
    {
      "bilateral_conjunctival_injection": true,
      "cervical_lymphadenopathy": true,
      "citation": {
        "authors": "McCrindle BW, Rowley AH, Newburger JW, Burns JC, Bolger AF, Gewitz M, Baker AL, Jackson MA, Takahashi M, Shah PB, Kobayashi T, Wu MH, Saji TT, Pahl E",
        "doi": "10.1161/CIR.0000000000000484",
        "id": "mccrindle-2017",
        "pmid": "28356445",
        "source": "Circulation. 2017;135(17):e927-e999",
        "title": "Diagnosis, Treatment, and Long-Term Management of Kawasaki Disease: A Scientific Statement for Health Professionals From the American Heart Association"
      },
      "classification": "complete",
      "criteria": [
        {
          "factor": "fever_days_ge_4",
          "met": true,
          "value": 5
        },
        {
          "factor": "oral_mucosal_changes",
          "met": true
        },
        {
          "factor": "bilateral_conjunctival_injection",
          "met": true
        },
        {
          "factor": "rash",
          "met": true
        },
        {
          "factor": "extremity_changes",
          "met": true
        },
        {
          "factor": "cervical_lymphadenopathy",
          "met": true
        },
        {
          "factor": "principal_feature_count_ge_4",
          "met": true,
          "value": 5
        }
      ],
      "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.",
      "extremity_changes": true,
      "fever_days": 5,
      "formula": "kawasaki",
      "formula_expression": "complete iff principal_feature_count >= 4 and fever_days >= 4 (McCrindle 2017; classic KD with fever_days >= 5 and >=4 features, or 4 days of fever when >=4 principal features). principal_feature_count is the number of true flags among oral_mucosal_changes, bilateral_conjunctival_injection, rash, extremity_changes, cervical_lymphadenopathy. Not incomplete-KD labs/echo. Not the 3-day clinician exception",
      "oral_mucosal_changes": true,
      "principal_feature_count": 5,
      "rash": true
    }
  ],
  "path": "/api/calc/kawasaki"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.magentlab.com/api/calc/kawasaki' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"bilateral_conjunctival_injection":true,"cervical_lymphadenopathy":true,"extremity_changes":true,"fever_days":5,"oral_mucosal_changes":true,"rash":true},{"bilateral_conjunctival_injection":true,"cervical_lymphadenopathy":true,"extremity_changes":true,"fever_days":5,"oral_mucosal_changes":true,"rash":true}]}'

# 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/kawasaki' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"bilateral_conjunctival_injection":true,"cervical_lymphadenopathy":true,"extremity_changes":true,"fever_days":5,"oral_mucosal_changes":true,"rash":true},{"bilateral_conjunctival_injection":true,"cervical_lymphadenopathy":true,"extremity_changes":true,"fever_days":5,"oral_mucosal_changes":true,"rash":true}]}' \
  | 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%2Fkawasaki&method=POST
const res = await pay("https://api.magentlab.com/api/calc/kawasaki", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "bilateral_conjunctival_injection": true,
        "cervical_lymphadenopathy": true,
        "extremity_changes": true,
        "fever_days": 5,
        "oral_mucosal_changes": true,
        "rash": true
      },
      {
        "bilateral_conjunctival_injection": true,
        "cervical_lymphadenopathy": true,
        "extremity_changes": true,
        "fever_days": 5,
        "oral_mucosal_changes": true,
        "rash": true
      }
    ]
  }),
});
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/kawasaki",
        json={
            "items": [
                {
                    "bilateral_conjunctival_injection": True,
                    "cervical_lymphadenopathy": True,
                    "extremity_changes": True,
                    "fever_days": 5,
                    "oral_mucosal_changes": True,
                    "rash": True,
                },
                {
                    "bilateral_conjunctival_injection": True,
                    "cervical_lymphadenopathy": True,
                    "extremity_changes": True,
                    "fever_days": 5,
                    "oral_mucosal_changes": True,
                    "rash": True,
                },
            ],
        },
    )
    print(res.status_code, res.text)