ToolVet
75trust / 100

Calc Rhig

by magent in Other

x402 APIPassing, checked 3 h ago

ACOG Practice Bulletin 181 RhD immune globulin vial arithmetic. fmh_ml = fetal_cells_percent/100 * maternal_blood_volume_ml. One 300 microgram vial covers 30 mL Rh D-positive fetal whole blood. AABB Technical Manual rounding: if frac(fmh_ml/30) >= 0.5 round up then add one vial; if < 0.5 round down then add one. Minimum 1 vial. Caller assigns Kleihauer–Betke percent and maternal volume; magent does not read slides. Not a prescription or brand order.

GET
https://api.magentlab.com/api/calc/rhig
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
210 ms
308 ms slowest 5%
Last check
Passed
3 h ago, next in 3 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/rhig

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/rhig?fetal_cells_percent=0.4&maternal_blood_volume_ml=5000

Parameters

ParameterTypeRequiredDescription
fetal_cells_percentnumberYesCaller-assigned Kleihauer–Betke fetal-cell percent (0-5). magent does not interpret slides.
maternal_blood_volume_mlnumberYesCaller-assigned maternal blood volume in mL (3000-10000). magent does not compute Nadler EBV.

Example response

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

{
  "citation": {
    "authors": "Committee on Practice Bulletins-Obstetrics",
    "doi": "10.1097/AOG.0000000000002232",
    "id": "acog-2017-181",
    "pmid": "28742673",
    "source": "Obstet Gynecol. 2017;130(2):e57-e70",
    "title": "Prevention of Rh D Alloimmunization"
  },
  "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.",
  "fetal_cells_percent": 0.4,
  "fmh_ml": 20,
  "formula": "acog_pb_181",
  "formula_expression": "fmh_ml = fetal_cells_percent / 100 * maternal_blood_volume_ml; raw = fmh_ml / 30; vials = (frac(raw) >= 0.5 ? ceil(raw) : floor(raw)) + 1",
  "maternal_blood_volume_ml": 5000,
  "raw": 0.667,
  "vial_micrograms": 300,
  "vials": 2
}

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/rhig?fetal_cells_percent=0.4&maternal_blood_volume_ml=5000'

# 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/rhig?fetal_cells_percent=0.4&maternal_blood_volume_ml=5000' \
  | 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%2Frhig
const res = await pay("https://api.magentlab.com/api/calc/rhig?fetal_cells_percent=0.4&maternal_blood_volume_ml=5000");
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/rhig?fetal_cells_percent=0.4&maternal_blood_volume_ml=5000")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
3 h agoPassed402308 ms$0.005
13 h agoPassed402277 ms$0.005
24 h agoPassed402155 ms$0.005
34 h agoPassed402210 ms$0.005
43 h agoPassed402225 ms$0.005
Show 6 older checks
2 days agoPassed402207 ms$0.005
3 days agoPassed402139 ms$0.005
3 days agoPassed402306 ms$0.005
3 days agoPassed402149 ms$0.005
4 days agoPassed402221 ms$0.005
4 days agoPassed402136 ms$0.005