Calc Nci Ctc Mucositis

{
  "appearance": "erythema",
  "citation": {
    "authors": "Trotti A, Byhardt R, Stetz J, Gwede C, Corn B, Fu K, Gunderson L, McCormick B, Morrisintegral M, Rich T, Shipley W, Curran W",
    "doi": "10.1016/s0360-3016(99)00559-3",
    "id": "trotti-2000",
    "pmid": "10758303",
    "source": "Int J Radiat Oncol Biol Phys. 2000;47(1):13-47",
    "title": "Common toxicity criteria: version 2.0. an improved reference for grading the acute effects of cancer treatment: impact on radiotherapy"
  },
  "criteria": [
    {
      "factor": "none",
      "met": false
    },
    {
      "factor": "erythema",
      "met": true
    },
    {
      "factor": "patchy_pseudomembrane",
      "met": false
    },
    {
      "factor": "confluent_pseudomembrane",
      "met": false
    },
    {
      "factor": "necrosis_or_deep_ulcer",
      "met": false
    }
  ],
  "description": "Erythema of the mucosa",
  "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": "nci_ctc_mucositis",
  "formula_expression": "nci_ctc_mucositis appearance none → grade 0; erythema → 1 (erythema of the mucosa); patchy_pseudomembrane → 2 (patchy pseudomembranous reaction, patches generally ≤1.5 cm and noncontiguous); confluent_pseudomembrane → 3 (confluent pseudomembranous reaction, contiguous patches generally >1.5 cm); necrosis_or_deep_ulcer → 4 (necrosis or deep ulceration; may include bleeding not induced by minor trauma or abrasion) (NCI CTC v2.0 Mucositis due to radiation; Trotti 2000). Not CTC stomatitis/pharyngitis. Not CTCAE. Not WHO mucositis. magent does not examine the mucosa. Not a diagnosis",
  "grade": 1
}

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

# 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/nci_ctc_mucositis?appearance=erythema' \
  | 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%2Fnci_ctc_mucositis
const res = await pay("https://api.magentlab.com/api/calc/nci_ctc_mucositis?appearance=erythema");
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/nci_ctc_mucositis?appearance=erythema")
    print(res.status_code, res.text)