69trust / 100

Calc Iwg2 Ad

by magent in Other

x402 APIFailing, checked 2 h ago

Dubois 2014 IWG-2 typical AD research criteria. typical_ad iff early hippocampal-type episodic memory, no better explanation, and in-vivo AD pathology (CSF Abeta1-42 plus T-tau or P-tau, amyloid PET, or a PSEN1/PSEN2/APP mutation). Typical AD only; not atypical phenotypes. Not NINCDS-ADRDA, not NIA-AA ATN, not DSM. magent does not examine the patient, assay CSF, or read PET. Not a diagnosis or medical device.

POST
https://api.magentlab.com/api/calc/iwg2_ad
Price
$0.007
per call in USDC
Uptime
97.1%
last 30 days
Response time
163 ms
646 ms slowest 5%
Last check
Failed
2 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Latest check failed 2 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/iwg2_ad

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/iwg2_ad
content-type: application/json

{
  "items": [
    {
      "amyloid_pet": false,
      "autosomal_dominant_mutation": false,
      "csf_abeta_and_tau": true,
      "early_episodic_memory": true,
      "no_better_explanation": true
    },
    {
      "amyloid_pet": false,
      "autosomal_dominant_mutation": false,
      "csf_abeta_and_tau": true,
      "early_episodic_memory": true,
      "no_better_explanation": true
    }
  ]
}

Parameters

ParameterTypeRequiredDescription
itemsarray of objectYes

Example response

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

Example response, 88 lines
{
  "count": 2,
  "items": [
    {
      "citation": {
        "authors": "Dubois B, Feldman HH, Jacova C, Hampel H, Molinuevo JL, Blennow K, DeKosky ST, Gauthier S, Selkoe D, Bateman R, Cappa S, Crutch S, Engelborghs S, Frisoni GB, Fox NC, Galasko D, Habert MO, Jicha GA, Nordberg A, Pasquier F, Rabinovici G, Robert P, Rowe C, Salloway S, Sarazin M, Epelbaum S, de Souza LC, Vellas B, Visser PJ, Schneider L, Stern Y, Scheltens P, Cummings JL",
        "doi": "10.1016/S1474-4422(14)70090-0",
        "id": "dubois-2014",
        "pmid": "24849861",
        "source": "Lancet Neurol. 2014;13(6):614-629",
        "title": "Advancing research diagnostic criteria for Alzheimer's disease: the IWG-2 criteria"
      },
      "criteria": [
        {
          "factor": "early_episodic_memory",
          "met": true
        },
        {
          "factor": "csf_abeta_and_tau",
          "met": true
        },
        {
          "factor": "amyloid_pet",
          "met": false
        },
        {
          "factor": "autosomal_dominant_mutation",
          "met": false
        },
        {
          "factor": "no_better_explanation",
          "met": true
        },
        {
          "factor": "in_vivo_pathology",
          "met": true
        }
      ],
      "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": "iwg2_ad",
      "formula_expression": "typical_ad iff no_better_explanation AND early_episodic_memory AND (csf_abeta_and_tau OR amyloid_pet OR autosomal_dominant_mutation) (Dubois 2014 IWG-2 typical AD). Not NINCDS-ADRDA. Not NIA-AA. Not DSM. magent does not examine the patient or assay CSF/PET.",
      "in_vivo_pathology": true,
      "typical_ad": true
    },
    {
      "citation": {
        "authors": "Dubois B, Feldman HH, Jacova C, Hampel H, Molinuevo JL, Blennow K, DeKosky ST, Gauthier S, Selkoe D, Bateman R, Cappa S, Crutch S, Engelborghs S, Frisoni GB, Fox NC, Galasko D, Habert MO, Jicha GA, Nordberg A, Pasquier F, Rabinovici G, Robert P, Rowe C, Salloway S, Sarazin M, Epelbaum S, de Souza LC, Vellas B, Visser PJ, Schneider L, Stern Y, Scheltens P, Cummings JL",
        "doi": "10.1016/S1474-4422(14)70090-0",
        "id": "dubois-2014",
        "pmid": "24849861",
        "source": "Lancet Neurol. 2014;13(6):614-629",
        "title": "Advancing research diagnostic criteria for Alzheimer's disease: the IWG-2 criteria"
      },
      "criteria": [
        {
          "factor": "early_episodic_memory",
          "met": true
        },
        {
          "factor": "csf_abeta_and_tau",
          "met": true
        },
        {
          "factor": "amyloid_pet",
          "met": false
        },
        {
          "factor": "autosomal_dominant_mutation",
          "met": false
        },
        {
          "factor": "no_better_explanation",
          "met": true
        },
        {
          "factor": "in_vivo_pathology",
          "met": true
        }
      ],
      "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": "iwg2_ad",
      "formula_expression": "typical_ad iff no_better_explanation AND early_episodic_memory AND (csf_abeta_and_tau OR amyloid_pet OR autosomal_dominant_mutation) (Dubois 2014 IWG-2 typical AD). Not NINCDS-ADRDA. Not NIA-AA. Not DSM. magent does not examine the patient or assay CSF/PET.",
      "in_vivo_pathology": true,
      "typical_ad": true
    }
  ],
  "path": "/api/calc/iwg2_ad"
}

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/iwg2_ad' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"amyloid_pet":false,"autosomal_dominant_mutation":false,"csf_abeta_and_tau":true,"early_episodic_memory":true,"no_better_explanation":true},{"amyloid_pet":false,"autosomal_dominant_mutation":false,"csf_abeta_and_tau":true,"early_episodic_memory":true,"no_better_explanation":true}]}'

# 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/iwg2_ad' \
  -H 'content-type: application/json' \
  --data-raw '{"items":[{"amyloid_pet":false,"autosomal_dominant_mutation":false,"csf_abeta_and_tau":true,"early_episodic_memory":true,"no_better_explanation":true},{"amyloid_pet":false,"autosomal_dominant_mutation":false,"csf_abeta_and_tau":true,"early_episodic_memory":true,"no_better_explanation":true}]}' \
  | 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%2Fiwg2_ad&method=POST
const res = await pay("https://api.magentlab.com/api/calc/iwg2_ad", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "items": [
      {
        "amyloid_pet": false,
        "autosomal_dominant_mutation": false,
        "csf_abeta_and_tau": true,
        "early_episodic_memory": true,
        "no_better_explanation": true
      },
      {
        "amyloid_pet": false,
        "autosomal_dominant_mutation": false,
        "csf_abeta_and_tau": true,
        "early_episodic_memory": true,
        "no_better_explanation": true
      }
    ]
  }),
});
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/iwg2_ad",
        json={
            "items": [
                {
                    "amyloid_pet": False,
                    "autosomal_dominant_mutation": False,
                    "csf_abeta_and_tau": True,
                    "early_episodic_memory": True,
                    "no_better_explanation": True,
                },
                {
                    "amyloid_pet": False,
                    "autosomal_dominant_mutation": False,
                    "csf_abeta_and_tau": True,
                    "early_episodic_memory": True,
                    "no_better_explanation": True,
                },
            ],
        },
    )
    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
2 h agoTimed out---
7 h agoPassed402278 ms$0.007
11 h agoPassed402139 ms$0.007
16 h agoPassed402135 ms$0.007
21 h agoPassed402264 ms$0.007
Show 10 older checks
26 h agoPassed402156 ms$0.007
30 h agoPassed402366 ms$0.007
35 h agoPassed402646 ms$0.007
39 h agoPassed402144 ms$0.007
43 h agoPassed402137 ms$0.007
47 h agoPassed402452 ms$0.007
2 days agoPassed402163 ms$0.007
2 days agoPassed402135 ms$0.007
3 days agoPassed402141 ms$0.007
3 days agoPassed402360 ms$0.007

History

11 Oct 2026Price changed from $0.005 to $0.007