Calc Who Pv

{
  "bone_marrow_panmyelosis": false,
  "citation": {
    "authors": "Arber DA, Orazi A, Hasserjian R, Thiele J, Borowitz MJ, Le Beau MM, Bloomfield CD, Cazzola M, Vardiman JW",
    "doi": "10.1182/blood-2016-03-643544",
    "id": "arber-2016",
    "pmid": "27069254",
    "source": "Blood. 2016;127(20):2391-2405",
    "title": "The 2016 revision to the World Health Organization classification of myeloid neoplasms and acute leukemia"
  },
  "criteria": [
    {
      "factor": "major_1",
      "met": false
    },
    {
      "factor": "major_2",
      "met": false
    },
    {
      "factor": "major_3",
      "met": false
    },
    {
      "factor": "minor",
      "met": 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": "who_pv",
  "formula_expression": "pv_criteria_met iff (major_1 and major_2 and major_3) or (major_1 and major_2 and minor); major_1 iff increased_red_cell_mass or (male and (hemoglobin_g_dl > 16.5 or hematocrit_percent > 49)) or (female and (hemoglobin_g_dl > 16.0 or hematocrit_percent > 48)); major_2 bone_marrow_panmyelosis; major_3 jak2_v617f_or_exon12; minor subnormal_epo (Arber 2016 WHO 2016 PV). Not WHO 2022",
  "hematocrit_percent": 45,
  "hemoglobin_g_dl": 15,
  "increased_red_cell_mass": false,
  "jak2_v617f_or_exon12": false,
  "major_1": false,
  "major_2": false,
  "major_3": false,
  "minor": false,
  "pv_criteria_met": false,
  "sex": "male",
  "subnormal_epo": false
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.magentlab.com/api/calc/who_pv?bone_marrow_panmyelosis=false&hematocrit_percent=45&hemoglobin_g_dl=15&increased_red_cell_mass=false&jak2_v617f_or_exon12=false&sex=male&subnormal_epo=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 - 'https://api.magentlab.com/api/calc/who_pv?bone_marrow_panmyelosis=false&hematocrit_percent=45&hemoglobin_g_dl=15&increased_red_cell_mass=false&jak2_v617f_or_exon12=false&sex=male&subnormal_epo=false' \
  | 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 $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
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 $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.magentlab.com%2Fapi%2Fcalc%2Fwho_pv
const res = await pay("https://api.magentlab.com/api/calc/who_pv?bone_marrow_panmyelosis=false&hematocrit_percent=45&hemoglobin_g_dl=15&increased_red_cell_mass=false&jak2_v617f_or_exon12=false&sex=male&subnormal_epo=false");
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 $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.magentlab.com/api/calc/who_pv?bone_marrow_panmyelosis=false&hematocrit_percent=45&hemoglobin_g_dl=15&increased_red_cell_mass=false&jak2_v617f_or_exon12=false&sex=male&subnormal_epo=false")
    print(res.status_code, res.text)