Calc Figo Ovarian

{
  "citation": {
    "authors": "Prat J; FIGO Committee on Gynecologic Oncology",
    "doi": "10.1016/j.ijgo.2013.10.001",
    "id": "prat-2014",
    "pmid": "24219974",
    "source": "Int J Gynaecol Obstet. 2014;124(1):1-5",
    "title": "Staging classification for cancer of the ovary, fallopian tube, and peritoneum"
  },
  "components": [
    {
      "factor": "ia",
      "met": true
    },
    {
      "factor": "ib",
      "met": false
    },
    {
      "factor": "ic1",
      "met": false
    },
    {
      "factor": "ic2",
      "met": false
    },
    {
      "factor": "ic3",
      "met": false
    },
    {
      "factor": "iia",
      "met": false
    },
    {
      "factor": "iib",
      "met": false
    },
    {
      "factor": "iiia1i",
      "met": false
    },
    {
      "factor": "iiia1ii",
      "met": false
    },
    {
      "factor": "iiia2",
      "met": false
    },
    {
      "factor": "iiib",
      "met": false
    },
    {
      "factor": "iiic",
      "met": false
    },
    {
      "factor": "iva",
      "met": false
    },
    {
      "factor": "ivb",
      "met": false
    }
  ],
  "description": "Tumor limited to one ovary (capsule intact) or fallopian tube; no tumor on surface; no malignant cells in ascites or peritoneal washings",
  "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": "figo_ovarian",
  "formula_expression": "stage in {IA, IB, IC1, IC2, IC3, IIA, IIB, IIIA1i, IIIA1ii, IIIA2, IIIB, IIIC, IVA, IVB} as assigned by the caller (Prat 2014 FIGO for ovary, fallopian tube, and peritoneum). 2014 eliminated IIC. magent does not read imaging or pathology. Not AJCC TNM. Not endometrial or cervical FIGO.",
  "stage": "IA"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.magentlab.com/api/calc/figo_ovarian?stage=IA'

# 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/figo_ovarian?stage=IA' \
  | 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%2Ffigo_ovarian
const res = await pay("https://api.magentlab.com/api/calc/figo_ovarian?stage=IA");
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/figo_ovarian?stage=IA")
    print(res.status_code, res.text)