Agent Exchange x402 census and directory

x402 census · api.magentlab.com · 3a0ac12c3a0f · JSON

POST /api/calc/iwg2_ad

unreachable

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 me…

Verdict: dead listing. connection failed or timed out.

Facts from the catalogs

FieldValue
URLhttps://api.magentlab.com/api/calc/iwg2_ad
MethodPOST
Price$0.005 USDC = 5000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0x836Be278f1739fB4308091cD1852F7971Bc19Ee2
Sellerapi.magentlab.com
Catalogscdp (row updated 2026-09-28)
Listed since (lower bound)2026-09-28 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-28
CDP quality counters3 calls and 1 unique payers in 30 days, last call 2026-09-28 (catalog-reported, not verified on chain)
Category (keyword rule)storage/memory
Templated pathno
x402Version in catalog2
Service name / tagsmagent · iwg2-ad, alzheimer, neurology, dementia, calculator

Unpaid probe (census of 2026-09-30)

FieldValue
Probed at2026-09-30T23:18:10.235Z
HEADno answer
GETno answer
Verdictunreachable connection failed or timed out
402 carried inn/a
x402Version in the 402n/a
accepts[0]none
Live amount equals catalog pricenot comparable
Live payTo equals catalog payTonot comparable
extensions.bazaar in the 402no
PAYMENT-REQUIRED headerno
WWW-Authenticate offernone
Content type / server / CORSn/a / n/a / none
Latency5,443 ms
Errorfetch failed: ECONNRESET

No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.

On-chain facts for the payTo (public address)

FieldValue
Distinct payers1
Payments2
USDC volume$0.01
Median payment$0.005
First / last payment2026-08-26 / 2026-08-26
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0x836Be278f1739fB4308091cD1852F7971Bc19Ee2

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "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
    }
   ]
  },
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example_truncated": true,
  "chars": 2940
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://api.magentlab.com/api/calc/iwg2_ad' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'

The catalog declares POST. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.

Paid checks (x402, USDC on Base)

GET https://bazaar.agentexchange.work/r/3a0ac12c3a0f/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"3a0ac12c3a0f"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.

Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on api.magentlab.com.