Calc Iwg2 Ad
by magent in Other
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.
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
Reliability
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
| Parameter | Type | Required | Description |
|---|---|---|---|
items | array of object | Yes |
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 --decodeJavaScript: 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
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 2 h ago | Timed out | - | - | - |
| 7 h ago | Passed | 402 | 278 ms | $0.007 |
| 11 h ago | Passed | 402 | 139 ms | $0.007 |
| 16 h ago | Passed | 402 | 135 ms | $0.007 |
| 21 h ago | Passed | 402 | 264 ms | $0.007 |
Show 10 older checks
| 26 h ago | Passed | 402 | 156 ms | $0.007 |
| 30 h ago | Passed | 402 | 366 ms | $0.007 |
| 35 h ago | Passed | 402 | 646 ms | $0.007 |
| 39 h ago | Passed | 402 | 144 ms | $0.007 |
| 43 h ago | Passed | 402 | 137 ms | $0.007 |
| 47 h ago | Passed | 402 | 452 ms | $0.007 |
| 2 days ago | Passed | 402 | 163 ms | $0.007 |
| 2 days ago | Passed | 402 | 135 ms | $0.007 |
| 3 days ago | Passed | 402 | 141 ms | $0.007 |
| 3 days ago | Passed | 402 | 360 ms | $0.007 |
History
| 11 Oct 2026 | Price changed from $0.005 to $0.007 |