ToolVet
67trust / 100

Calc Abcd2

by magent in Security & trust

x402 APIFailing, checked 3 h ago

ABCD2 (Johnston 2007) early stroke-risk score after TIA from age, blood pressure, caller-assigned clinical features, symptom duration, and diabetes (max 7). Bands 0-3, 4-5, and 6-7. Deterministic published score with citation; not a diagnosis or admit protocol. magent does not examine the patient. Not ABCD (Rothwell 2005) and not ABCD3-I.

POST
https://api.magentlab.com/api/calc/abcd2
Price
$0.007
per call in USDC
Uptime
89.2%
last 30 days
Response time
160 ms
530 ms slowest 5%
Last check
Failed
3 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Latest check failed 3 h ago: Timed out

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

How to call it

POST https://api.magentlab.com/api/calc/abcd2

Each call costs $0.007 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.

POST https://api.magentlab.com/api/calc/abcd2
content-type: application/json

{
  "items": [
    {
      "age": 55,
      "clinical_features": "none",
      "diabetes": false,
      "diastolic_mm_hg": 80,
      "duration_min": 5,
      "systolic_mm_hg": 120
    },
    {
      "age": 55,
      "clinical_features": "none",
      "diabetes": false,
      "diastolic_mm_hg": 80,
      "duration_min": 5,
      "systolic_mm_hg": 120
    }
  ]
}

Parameters

ParameterTypeRequiredDescription
itemsarray of objectYes

Example response

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

Example response, 102 lines
{
  "count": 2,
  "items": [
    {
      "abcd2_band": "0-3",
      "age_years": 55,
      "citation": {
        "authors": "Johnston SC, Rothwell PM, Nguyen-Huynh MN, et al.",
        "doi": "10.1016/S0140-6736(07)60150-0",
        "id": "johnston-2007",
        "source": "Lancet. 2007;369(9558):283-292",
        "title": "Validation and refinement of scores to predict very early stroke risk after transient ischaemic attack"
      },
      "components": [
        {
          "factor": "age",
          "points": 0,
          "present": false,
          "value": 55
        },
        {
          "diastolic_mm_hg": 80,
          "factor": "blood_pressure",
          "points": 0,
          "present": false,
          "systolic_mm_hg": 120
        },
        {
          "factor": "clinical_features",
          "points": 0,
          "present": false,
          "value": "none"
        },
        {
          "factor": "duration_min",
          "points": 0,
          "present": false,
          "value": 5
        },
        {
          "factor": "diabetes",
          "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": "abcd2",
      "formula_expression": "ABCD2 = age_ge_60 + blood_pressure + clinical_features + duration + diabetes; age >=60 1; SBP >=140 or DBP >=90 1; none 0 / speech_without_weakness 1 / unilateral_weakness 2; duration <10 0, 10-59 1, >=60 2; diabetes 1; bands 0-3 / 4-5 / 6-7; max 7",
      "max_score": 7,
      "score": 0
    },
    {
      "abcd2_band": "0-3",
      "age_years": 55,
      "citation": {
        "authors": "Johnston SC, Rothwell PM, Nguyen-Huynh MN, et al.",
        "doi": "10.1016/S0140-6736(07)60150-0",
        "id": "johnston-2007",
        "source": "Lancet. 2007;369(9558):283-292",
        "title": "Validation and refinement of scores to predict very early stroke risk after transient ischaemic attack"
      },
      "components": [
        {
          "factor": "age",
          "points": 0,
          "present": false,
          "value": 55
        },
        {
          "diastolic_mm_hg": 80,
          "factor": "blood_pressure",
          "points": 0,
          "present": false,
          "systolic_mm_hg": 120
        },
        {
          "factor": "clinical_features",
          "points": 0,
          "present": false,
          "value": "none"
        },
        {
          "factor": "duration_min",
          "points": 0,
          "present": false,
          "value": 5
        },
        {
          "factor": "diabetes",
          "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": "abcd2",
      "formula_expression": "ABCD2 = age_ge_60 + blood_pressure + clinical_features + duration + diabetes; age >=60 1; SBP >=140 or DBP >=90 1; none 0 / speech_without_weakness 1 / unilateral_weakness 2; duration <10 0, 10-59 1, >=60 2; diabetes 1; bands 0-3 / 4-5 / 6-7; max 7",
      "max_score": 7,
      "score": 0
    }
  ],
  "path": "/api/calc/abcd2"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.007.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.magentlab.com/api/calc/abcd2' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age":55,"clinical_features":"none","diabetes":false,"diastolic_mm_hg":80,"duration_min":5,"systolic_mm_hg":120},{"age":55,"clinical_features":"none","diabetes":false,"diastolic_mm_hg":80,"duration_min":5,"systolic_mm_hg":120}]}'

# 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/abcd2' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"age":55,"clinical_features":"none","diabetes":false,"diastolic_mm_hg":80,"duration_min":5,"systolic_mm_hg":120},{"age":55,"clinical_features":"none","diabetes":false,"diastolic_mm_hg":80,"duration_min":5,"systolic_mm_hg":120}]}' \
  | 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 $0.007 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%2Fabcd2&method=POST
const res = await pay("https://api.magentlab.com/api/calc/abcd2", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "age": 55,
        "clinical_features": "none",
        "diabetes": false,
        "diastolic_mm_hg": 80,
        "duration_min": 5,
        "systolic_mm_hg": 120
      },
      {
        "age": 55,
        "clinical_features": "none",
        "diabetes": false,
        "diastolic_mm_hg": 80,
        "duration_min": 5,
        "systolic_mm_hg": 120
      }
    ]
  }),
});
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 $0.007 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/abcd2",
        json={
            "items": [
                {
                    "age": 55,
                    "clinical_features": "none",
                    "diabetes": False,
                    "diastolic_mm_hg": 80,
                    "duration_min": 5,
                    "systolic_mm_hg": 120,
                },
                {
                    "age": 55,
                    "clinical_features": "none",
                    "diabetes": False,
                    "diastolic_mm_hg": 80,
                    "duration_min": 5,
                    "systolic_mm_hg": 120,
                },
            ],
        },
    )
    print(res.status_code, res.text)

Security scan

1 finding

  • Charges more than its listed price in payment
    Listed at $0.005, charges $0.007

Recent checks

WhenResultHTTPTimePrice
3 h agoTimed out---
9 h agoTimed out---
14 h agoTimed out---
18 h agoTimed out---
23 h agoPassed402341 ms$0.007
Show 10 older checks
28 h agoPassed402145 ms$0.007
33 h agoPassed402146 ms$0.007
37 h agoPassed402263 ms$0.007
42 h agoPassed402522 ms$0.007
46 h agoPassed402226 ms$0.007
2 days agoPassed402422 ms$0.007
2 days agoPassed402294 ms$0.007
2 days agoPassed402135 ms$0.007
3 days agoPassed402151 ms$0.007
3 days agoPassed402380 ms$0.007

History

11 Oct 2026Price changed from $0.005 to $0.007