Clinical Recall Check

{
  "bottom_line": "There are active recalls for some valsartan lots over a trace impurity — check your specific bottle rather than assuming yours is affected.",
  "disclaimer": "Recall records come from the FDA openFDA enforcement database. A recall of one lot does not mean every bottle of this drug is affected — check the specific product, lot number, and NDC against the recall notice, and ask your pharmacist.",
  "has_active_recall": true,
  "highest_severity": "Class II",
  "query_summary": {
    "drug": "valsartan",
    "records_found": 6
  },
  "recalls": [
    {
      "classification": "Class II",
      "date": "20251104",
      "product": "Valsartan tablets, 160 mg",
      "reason": "Detection of a trace nitrosamine impurity (NDMA) above the acceptable daily limit.",
      "recalling_firm": "Example Pharma Inc.",
      "status": "Ongoing",
      "voluntary_or_mandated": "Voluntary",
      "where_distributed": "Nationwide (US)"
    }
  ],
  "severity_meaning": "Class II means the product might cause temporary or medically reversible health problems, and the chance of serious harm is low.",
  "what_to_do": [
    "Find the NDC and lot number on your bottle and compare them to the recall notice.",
    "Call your pharmacy — they can tell you if your specific lot is affected and provide a replacement.",
    "Do not stop a blood-pressure medicine on your own; ask your pharmacist about a safe alternative first."
  ]
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://clinicalintelpulse.theaslangroupllc.com/api/clinical/recall-check?drug=Brand+or+generic+medication+name+%E2%80%94+e.g.+%22metformin%22+%7C+%22valsartan%22+%7C+%22Zantac%22+%7C+%22ranitidine%22&lang=en+%7C+es+%7C+fr+%7C+de+%7C+ja+%7C+zh+%7C+ko+%7C+pt+%7C+ar+%7C+hi+%28default%3A+en%29'

# 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://clinicalintelpulse.theaslangroupllc.com/api/clinical/recall-check?drug=Brand+or+generic+medication+name+%E2%80%94+e.g.+%22metformin%22+%7C+%22valsartan%22+%7C+%22Zantac%22+%7C+%22ranitidine%22&lang=en+%7C+es+%7C+fr+%7C+de+%7C+ja+%7C+zh+%7C+ko+%7C+pt+%7C+ar+%7C+hi+%28default%3A+en%29' \
  | 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 $0.1 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.1" });
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 $0.1 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fclinicalintelpulse.theaslangroupllc.com%2Fapi%2Fclinical%2Frecall-check
const res = await pay("https://clinicalintelpulse.theaslangroupllc.com/api/clinical/recall-check?drug=Brand+or+generic+medication+name+%E2%80%94+e.g.+%22metformin%22+%7C+%22valsartan%22+%7C+%22Zantac%22+%7C+%22ranitidine%22&lang=en+%7C+es+%7C+fr+%7C+de+%7C+ja+%7C+zh+%7C+ko+%7C+pt+%7C+ar+%7C+hi+%28default%3A+en%29");
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 $0.1 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.1"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://clinicalintelpulse.theaslangroupllc.com/api/clinical/recall-check?drug=Brand+or+generic+medication+name+%E2%80%94+e.g.+%22metformin%22+%7C+%22valsartan%22+%7C+%22Zantac%22+%7C+%22ranitidine%22&lang=en+%7C+es+%7C+fr+%7C+de+%7C+ja+%7C+zh+%7C+ko+%7C+pt+%7C+ar+%7C+hi+%28default%3A+en%29")
    print(res.status_code, res.text)