Calc Manchester

{
  "bicarbonate_mmol_l": 24,
  "citation": {
    "authors": "Cerny T, Blair V, Anderson H, Bramwell V, Thatcher N",
    "doi": "10.1002/ijc.2910390204",
    "id": "cerny-1987",
    "pmid": "3026969",
    "source": "Int J Cancer. 1987;39(2):146-149",
    "title": "Pretreatment prognostic factors and scoring system in 407 small-cell lung cancer patients"
  },
  "components": [
    {
      "factor": "ldh_gt_uln",
      "points": 0,
      "present": false
    },
    {
      "factor": "sodium_lt_132",
      "points": 0,
      "present": false,
      "value": 140
    },
    {
      "factor": "alp_gt_1_5_uln",
      "points": 0,
      "present": false
    },
    {
      "factor": "bicarbonate_lt_24",
      "points": 0,
      "present": false,
      "value": 24
    },
    {
      "factor": "kps_lt_60",
      "points": 0,
      "present": false,
      "value": 80
    },
    {
      "factor": "extensive_stage",
      "points": 0,
      "present": 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": "manchester",
  "formula_expression": "Manchester = ldh_gt_uln 1 + sodium_lt_132 1 + alp_gt_1_5_uln 1 + bicarbonate_lt_24 1 + kps_lt_60 1 + extensive_stage 1; Cerny 1987; max 6; good 0-1, intermediate 2-3, poor ≥4",
  "kps": 80,
  "max_score": 6,
  "prognostic_group": "good",
  "score": 0,
  "sodium_mmol_l": 140
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.magentlab.com/api/calc/manchester?alp_gt_1_5_uln=false&bicarbonate_mmol_l=24&extensive_stage=false&kps=80&ldh_gt_uln=false&sodium_mmol_l=140'

# 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/manchester?alp_gt_1_5_uln=false&bicarbonate_mmol_l=24&extensive_stage=false&kps=80&ldh_gt_uln=false&sodium_mmol_l=140' \
  | 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%2Fmanchester
const res = await pay("https://api.magentlab.com/api/calc/manchester?alp_gt_1_5_uln=false&bicarbonate_mmol_l=24&extensive_stage=false&kps=80&ldh_gt_uln=false&sodium_mmol_l=140");
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/manchester?alp_gt_1_5_uln=false&bicarbonate_mmol_l=24&extensive_stage=false&kps=80&ldh_gt_uln=false&sodium_mmol_l=140")
    print(res.status_code, res.text)