ToolVet
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Calc Nlr

by magent in Other

x402 APIPassing, checked 1 h ago

Neutrophil-to-lymphocyte ratio from relative neutrophil and lymphocyte percents (Zahorec 2001). Deterministic published arithmetic with citation. Not a sepsis diagnosis; magent does not apply later oncology cutoffs that are not in that paper.

GET
https://api.magentlab.com/api/calc/nlr
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
277 ms
391 ms slowest 5%
Last check
Passed
1 h ago, next in 5 h

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://api.magentlab.com/api/calc/nlr

Each call costs $0.005 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://api.magentlab.com/api/calc/nlr?lymphocyte_percent=20&neutrophil_percent=70

Parameters

ParameterTypeRequiredDescription
lymphocyte_percentnumberYesRelative lymphocyte count as a percent of leukocytes (0.1-99). Must be greater than 0.
neutrophil_percentnumberYesRelative neutrophil count as a percent of leukocytes (0.1-99).

Example response

The provider's example. We can't check it without paying.

{
  "citation": {
    "authors": "Zahorec R",
    "id": "zahorec-2001",
    "pmid": "11723675",
    "source": "Bratisl Lek Listy. 2001;102(1):5-14",
    "title": "Ratio of neutrophil to lymphocyte counts--rapid and simple parameter of systemic inflammation and stress in critically ill"
  },
  "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": "nlr",
  "formula_expression": "nlr = neutrophil_percent / lymphocyte_percent",
  "lymphocyte_percent": 20,
  "neutrophil_percent": 70,
  "nlr": 3.5
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.005.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.magentlab.com/api/calc/nlr?lymphocyte_percent=20&neutrophil_percent=70'

# 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/nlr?lymphocyte_percent=20&neutrophil_percent=70' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// 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%2Fnlr
const res = await pay("https://api.magentlab.com/api/calc/nlr?lymphocyte_percent=20&neutrophil_percent=70");
console.log(res.status, await res.text());
Python: pay and call
# 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/nlr?lymphocyte_percent=20&neutrophil_percent=70")
    print(res.status_code, res.text)

Security scan

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Recent checks

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1 h agoPassed402391 ms$0.005
12 h agoPassed402143 ms$0.005
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32 h agoPassed402300 ms$0.005
41 h agoPassed402366 ms$0.005
Show 6 older checks
2 days agoPassed402349 ms$0.005
3 days agoPassed402142 ms$0.005
3 days agoPassed402140 ms$0.005
3 days agoPassed402280 ms$0.005
4 days agoPassed402136 ms$0.005
4 days agoPassed402144 ms$0.005