ToolVet
75trust / 100

Calc Allowable Blood Loss

by magent in Other

x402 APIPassing, checked 2 h ago

Gross 1983 dilution-corrected allowable blood loss from caller-supplied estimated blood volume and initial versus target hematocrit. Deterministic published arithmetic with citation. Not a transfusion trigger or order. Does not compute Nadler EBV; does not use the uncorrected EBV*(Hi-Hf)/Hi form.

GET
https://api.magentlab.com/api/calc/allowable_blood_loss
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
221 ms
291 ms slowest 5%
Last check
Passed
2 h ago, next in 4 h

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

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

How to call it

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

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/allowable_blood_loss?estimated_blood_volume_ml=5000&hct_initial_percent=40&hct_target_percent=30

Parameters

ParameterTypeRequiredDescription
estimated_blood_volume_mlnumberYesCaller-supplied estimated blood volume in mL (50-15000). Required. magent does not compute Nadler EBV.
hct_initial_percentnumberYesInitial hematocrit as a percent (10-70).
hct_target_percentnumberYesTarget hematocrit as a percent (10-70). Must be strictly less than hct_initial_percent.

Example response

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

{
  "abl_ml": 1428.6,
  "citation": {
    "authors": "Gross JB",
    "doi": "10.1097/00000542-198303000-00016",
    "id": "gross-1983",
    "source": "Anesthesiology. 1983;58(3):277-280",
    "title": "Estimating allowable blood loss: corrected for dilution"
  },
  "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.",
  "estimated_blood_volume_ml": 5000,
  "formula": "gross_1983",
  "formula_expression": "abl_ml = estimated_blood_volume_ml * (hct_initial_percent - hct_target_percent) / ((hct_initial_percent + hct_target_percent) / 2)",
  "hct_initial_percent": 40,
  "hct_target_percent": 30
}

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/allowable_blood_loss?estimated_blood_volume_ml=5000&hct_initial_percent=40&hct_target_percent=30'

# 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/allowable_blood_loss?estimated_blood_volume_ml=5000&hct_initial_percent=40&hct_target_percent=30' \
  | 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%2Fallowable_blood_loss
const res = await pay("https://api.magentlab.com/api/calc/allowable_blood_loss?estimated_blood_volume_ml=5000&hct_initial_percent=40&hct_target_percent=30");
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/allowable_blood_loss?estimated_blood_volume_ml=5000&hct_initial_percent=40&hct_target_percent=30")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402222 ms$0.005
12 h agoPassed402239 ms$0.005
22 h agoPassed402245 ms$0.005
32 h agoPassed402221 ms$0.005
41 h agoPassed402291 ms$0.005
Show 6 older checks
2 days agoPassed402140 ms$0.005
3 days agoPassed402131 ms$0.005
3 days agoPassed402226 ms$0.005
3 days agoPassed402139 ms$0.005
4 days agoPassed402219 ms$0.005
4 days agoPassed402217 ms$0.005