Calc Wells Pe

{
  "count": 2,
  "items": [
    {
      "citation": {
        "authors": "Wells PS, Anderson DR, Rodger M, et al.",
        "doi": "10.7326/0003-4819-135-2-200107170-00010",
        "id": "wells-pe-2001",
        "source": "Ann Intern Med. 2001;135(2):98-107",
        "title": "Excluding pulmonary embolism at the bedside without diagnostic imaging: management of patients with suspected pulmonary embolism presenting to the emergency department by using a simple clinical model and d-dimer"
      },
      "components": [
        {
          "factor": "signs_dvt",
          "points": 3,
          "present": true
        },
        {
          "factor": "pe_number_one",
          "points": 3,
          "present": true
        },
        {
          "factor": "hr_gt_100",
          "points": 0,
          "present": false
        },
        {
          "factor": "immobilization_or_surgery",
          "points": 0,
          "present": false
        },
        {
          "factor": "previous_dvt_pe",
          "points": 0,
          "present": false
        },
        {
          "factor": "hemoptysis",
          "points": 0,
          "present": false
        },
        {
          "factor": "malignancy",
          "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": "wells_pe",
      "formula_expression": "Wells PE = 3*signs_dvt + 3*pe_number_one + 1.5*hr_gt_100 + 1.5*immobilization_or_surgery + 1.5*previous_dvt_pe + 1*hemoptysis + 1*malignancy",
      "max_score": 12.5,
      "score": 6,
      "three_tier": "moderate",
      "two_tier": "likely"
    },
    {
      "citation": {
        "authors": "Wells PS, Anderson DR, Rodger M, et al.",
        "doi": "10.7326/0003-4819-135-2-200107170-00010",
        "id": "wells-pe-2001",
        "source": "Ann Intern Med. 2001;135(2):98-107",
        "title": "Excluding pulmonary embolism at the bedside without diagnostic imaging: management of patients with suspected pulmonary embolism presenting to the emergency department by using a simple clinical model and d-dimer"
      },
      "components": [
        {
          "factor": "signs_dvt",
          "points": 3,
          "present": true
        },
        {
          "factor": "pe_number_one",
          "points": 3,
          "present": true
        },
        {
          "factor": "hr_gt_100",
          "points": 0,
          "present": false
        },
        {
          "factor": "immobilization_or_surgery",
          "points": 0,
          "present": false
        },
        {
          "factor": "previous_dvt_pe",
          "points": 0,
          "present": false
        },
        {
          "factor": "hemoptysis",
          "points": 0,
          "present": false
        },
        {
          "factor": "malignancy",
          "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": "wells_pe",
      "formula_expression": "Wells PE = 3*signs_dvt + 3*pe_number_one + 1.5*hr_gt_100 + 1.5*immobilization_or_surgery + 1.5*previous_dvt_pe + 1*hemoptysis + 1*malignancy",
      "max_score": 12.5,
      "score": 6,
      "three_tier": "moderate",
      "two_tier": "likely"
    }
  ],
  "path": "/api/calc/wells_pe"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.magentlab.com/api/calc/wells_pe' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"hemoptysis":false,"hr_gt_100":false,"immobilization_or_surgery":false,"malignancy":false,"pe_number_one":true,"previous_dvt_pe":false,"signs_dvt":true},{"hemoptysis":false,"hr_gt_100":false,"immobilization_or_surgery":false,"malignancy":false,"pe_number_one":true,"previous_dvt_pe":false,"signs_dvt":true}]}'

# 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/wells_pe' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"hemoptysis":false,"hr_gt_100":false,"immobilization_or_surgery":false,"malignancy":false,"pe_number_one":true,"previous_dvt_pe":false,"signs_dvt":true},{"hemoptysis":false,"hr_gt_100":false,"immobilization_or_surgery":false,"malignancy":false,"pe_number_one":true,"previous_dvt_pe":false,"signs_dvt":true}]}' \
  | 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%2Fwells_pe&method=POST
const res = await pay("https://api.magentlab.com/api/calc/wells_pe", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "hemoptysis": false,
        "hr_gt_100": false,
        "immobilization_or_surgery": false,
        "malignancy": false,
        "pe_number_one": true,
        "previous_dvt_pe": false,
        "signs_dvt": true
      },
      {
        "hemoptysis": false,
        "hr_gt_100": false,
        "immobilization_or_surgery": false,
        "malignancy": false,
        "pe_number_one": true,
        "previous_dvt_pe": false,
        "signs_dvt": true
      }
    ]
  }),
});
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/wells_pe",
        json={
            "items": [
                {
                    "hemoptysis": False,
                    "hr_gt_100": False,
                    "immobilization_or_surgery": False,
                    "malignancy": False,
                    "pe_number_one": True,
                    "previous_dvt_pe": False,
                    "signs_dvt": True,
                },
                {
                    "hemoptysis": False,
                    "hr_gt_100": False,
                    "immobilization_or_surgery": False,
                    "malignancy": False,
                    "pe_number_one": True,
                    "previous_dvt_pe": False,
                    "signs_dvt": True,
                },
            ],
        },
    )
    print(res.status_code, res.text)