Calc Bclc

{
  "count": 2,
  "items": [
    {
      "bclc_stage": "0",
      "citation": {
        "authors": "Reig M, Forner A, Rimola J, Ferrer-Fàbrega J, Burrel M, Garcia-Criado Á, Kelley RK, Galle PR, Mazzaferro V, Salem R, Sangro B, Singal AG, Vogel A, Fuster J, Ayuso C, Bruix J",
        "doi": "10.1016/j.jhep.2021.11.018",
        "id": "reig-2022",
        "pmid": "34801630",
        "source": "J Hepatol. 2022;76(3):681-693",
        "title": "BCLC strategy for prognosis prediction and treatment recommendation: The 2022 update"
      },
      "criteria": [
        {
          "factor": "ps_gt_2",
          "met": false
        },
        {
          "factor": "impaired_liver_without_lt",
          "met": false
        },
        {
          "factor": "preserved_liver_function",
          "met": true
        },
        {
          "factor": "vascular_invasion",
          "met": false
        },
        {
          "factor": "extrahepatic",
          "met": false
        },
        {
          "factor": "cancer_related_symptoms",
          "met": false
        },
        {
          "factor": "single_leq_2cm",
          "met": true
        },
        {
          "factor": "early_solitary_or_upto_3",
          "met": false
        },
        {
          "factor": "multifocal_beyond_a",
          "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.",
      "ecog": 0,
      "expected_median_survival": ">5 years",
      "extrahepatic": false,
      "formula": "bclc",
      "formula_expression": "bclc_stage D iff ecog > 2 or (not preserved_liver_function and not transplant_option); else C iff preserved_liver_function and ecog <= 2 and (vascular_invasion or extrahepatic or ecog >= 1); else 0 iff ecog == 0 and not vascular_invasion and not extrahepatic and (preserved_liver_function or transplant_option) and tumor_count == 1 and largest_cm <= 2; else A iff same eligibility and ((tumor_count == 1 and largest_cm > 2) or (tumor_count in 2..3 and largest_cm <= 3)); else B iff same eligibility and (tumor_count >= 4 or (tumor_count in 2..3 and largest_cm > 3)); else invalid_bclc_profile (Reig 2022)",
      "largest_cm": 1.5,
      "preserved_liver_function": true,
      "transplant_option": false,
      "tumor_count": 1,
      "vascular_invasion": false
    },
    {
      "bclc_stage": "0",
      "citation": {
        "authors": "Reig M, Forner A, Rimola J, Ferrer-Fàbrega J, Burrel M, Garcia-Criado Á, Kelley RK, Galle PR, Mazzaferro V, Salem R, Sangro B, Singal AG, Vogel A, Fuster J, Ayuso C, Bruix J",
        "doi": "10.1016/j.jhep.2021.11.018",
        "id": "reig-2022",
        "pmid": "34801630",
        "source": "J Hepatol. 2022;76(3):681-693",
        "title": "BCLC strategy for prognosis prediction and treatment recommendation: The 2022 update"
      },
      "criteria": [
        {
          "factor": "ps_gt_2",
          "met": false
        },
        {
          "factor": "impaired_liver_without_lt",
          "met": false
        },
        {
          "factor": "preserved_liver_function",
          "met": true
        },
        {
          "factor": "vascular_invasion",
          "met": false
        },
        {
          "factor": "extrahepatic",
          "met": false
        },
        {
          "factor": "cancer_related_symptoms",
          "met": false
        },
        {
          "factor": "single_leq_2cm",
          "met": true
        },
        {
          "factor": "early_solitary_or_upto_3",
          "met": false
        },
        {
          "factor": "multifocal_beyond_a",
          "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.",
      "ecog": 0,
      "expected_median_survival": ">5 years",
      "extrahepatic": false,
      "formula": "bclc",
      "formula_expression": "bclc_stage D iff ecog > 2 or (not preserved_liver_function and not transplant_option); else C iff preserved_liver_function and ecog <= 2 and (vascular_invasion or extrahepatic or ecog >= 1); else 0 iff ecog == 0 and not vascular_invasion and not extrahepatic and (preserved_liver_function or transplant_option) and tumor_count == 1 and largest_cm <= 2; else A iff same eligibility and ((tumor_count == 1 and largest_cm > 2) or (tumor_count in 2..3 and largest_cm <= 3)); else B iff same eligibility and (tumor_count >= 4 or (tumor_count in 2..3 and largest_cm > 3)); else invalid_bclc_profile (Reig 2022)",
      "largest_cm": 1.5,
      "preserved_liver_function": true,
      "transplant_option": false,
      "tumor_count": 1,
      "vascular_invasion": false
    }
  ],
  "path": "/api/calc/bclc"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.magentlab.com/api/calc/bclc' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"ecog":0,"extrahepatic":false,"largest_cm":1.5,"preserved_liver_function":true,"transplant_option":false,"tumor_count":1,"vascular_invasion":false},{"ecog":0,"extrahepatic":false,"largest_cm":1.5,"preserved_liver_function":true,"transplant_option":false,"tumor_count":1,"vascular_invasion":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 - -X POST 'https://api.magentlab.com/api/calc/bclc' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"ecog":0,"extrahepatic":false,"largest_cm":1.5,"preserved_liver_function":true,"transplant_option":false,"tumor_count":1,"vascular_invasion":false},{"ecog":0,"extrahepatic":false,"largest_cm":1.5,"preserved_liver_function":true,"transplant_option":false,"tumor_count":1,"vascular_invasion":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 $0.007 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%2Fbclc&method=POST
const res = await pay("https://api.magentlab.com/api/calc/bclc", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "ecog": 0,
        "extrahepatic": false,
        "largest_cm": 1.5,
        "preserved_liver_function": true,
        "transplant_option": false,
        "tumor_count": 1,
        "vascular_invasion": false
      },
      {
        "ecog": 0,
        "extrahepatic": false,
        "largest_cm": 1.5,
        "preserved_liver_function": true,
        "transplant_option": false,
        "tumor_count": 1,
        "vascular_invasion": 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 $0.007 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/bclc",
        json={
            "items": [
                {
                    "ecog": 0,
                    "extrahepatic": False,
                    "largest_cm": 1.5,
                    "preserved_liver_function": True,
                    "transplant_option": False,
                    "tumor_count": 1,
                    "vascular_invasion": False,
                },
                {
                    "ecog": 0,
                    "extrahepatic": False,
                    "largest_cm": 1.5,
                    "preserved_liver_function": True,
                    "transplant_option": False,
                    "tumor_count": 1,
                    "vascular_invasion": False,
                },
            ],
        },
    )
    print(res.status_code, res.text)