Calc Isth Dic

{
  "citation": {
    "authors": "Taylor FB Jr, Toh CH, Hoots WK, Wada H, Levi M",
    "doi": "10.1055/s-0037-1616068",
    "id": "taylor-2001",
    "pmid": "11816725",
    "source": "Thromb Haemost. 2001;86(5):1327-1330",
    "title": "Towards definition, clinical and laboratory criteria, and a scoring system for disseminated intravascular coagulation"
  },
  "components": [
    {
      "factor": "platelets",
      "points": 0,
      "present": false,
      "value": 180
    },
    {
      "factor": "fibrin_related_marker",
      "points": 0,
      "present": false,
      "value": "none"
    },
    {
      "factor": "pt_prolongation",
      "points": 0,
      "present": false,
      "value": 1
    },
    {
      "factor": "fibrinogen",
      "points": 0,
      "present": false,
      "value": 2.5
    }
  ],
  "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.",
  "fibrin_related_marker": "none",
  "fibrinogen_g_l": 2.5,
  "formula": "isth_dic",
  "formula_expression": "ISTH overt DIC = platelets_10e9_l (>=100 → 0; 50 to <100 → 1; <50 → 2) + fibrin_related_marker (none 0, moderate 2, strong 3) + pt_prolongation_sec (<3 → 0; >=3 and <6 → 1; >=6 → 2) + fibrinogen_g_l (>=1.0 → 0; <1.0 → 1); max 8; bands <5 / >=5",
  "isth_dic_band": "<5",
  "max_score": 8,
  "platelets_10e9_l": 180,
  "pt_prolongation_sec": 1,
  "score": 0
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.magentlab.com/api/calc/isth_dic?fibrin_related_marker=none&fibrinogen_g_l=2.5&fibrinogen_mg_dl=250&platelets_10e9_l=180&pt_prolongation_sec=1'

# 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/isth_dic?fibrin_related_marker=none&fibrinogen_g_l=2.5&fibrinogen_mg_dl=250&platelets_10e9_l=180&pt_prolongation_sec=1' \
  | 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%2Fisth_dic
const res = await pay("https://api.magentlab.com/api/calc/isth_dic?fibrin_related_marker=none&fibrinogen_g_l=2.5&fibrinogen_mg_dl=250&platelets_10e9_l=180&pt_prolongation_sec=1");
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/isth_dic?fibrin_related_marker=none&fibrinogen_g_l=2.5&fibrinogen_mg_dl=250&platelets_10e9_l=180&pt_prolongation_sec=1")
    print(res.status_code, res.text)