x402 census · modell.halowerk.com · 3ce537f881c6 · JSON

POST /v1/drift-check

unprobed

Compares two submitted sample sets feature by feature and returns deterministic drift metrics. Continuous features are binned on the combined value range and receive PSI, Jensen-Shannon divergence and a Kolmogorov-Smirnov statistic; categorical features receive PSI and Jensen-Shannon divergence over exact category labels. The response names every feature, its sample counts, the metric values, the…

Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.

Facts from the catalogs

Field Value

URL https://modell.halowerk.com/v1/drift-check

Method POST

Price $0.003 USDC = 3000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base)

payTo 0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E

Seller modell.halowerk.com

Catalogs cdp (row updated 2026-09-14)

Listed since (lower bound) 2026-09-14 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-14

CDP quality counters 1 calls and 1 unique payers in 30 days, last call 2026-09-14 (catalog-reported, not verified on chain)

Category (keyword rule) other/unknown

Templated path no

x402Version in catalog 2

Service name / tags none

Unpaid probe (census of )

Field

Value

Probe

not probed in this build

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)

Field Value

Distinct payers 13

Payments 94

USDC volume $0.33

Median payment $0.003

First / last payment 2026-08-10 / 2026-09-30

Sampler-shaped share of payments 98.9%

Payers that are not samplers 1

Source forensics-2026-09-30

Address 0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E (contract: EIP7702StatelessDeleGator)

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "bins": 5,
   "current_samples": {
    "risk_score": [
     0.14,
     0.19,
     0.23,
     0.32,
     0.4,
     0.44,
     0.48,
     0.52
    ],
    "segment": [
     "retail",
     "smb",
     "smb",
     "enterprise",
     "enterprise",
     "enterprise"
    ]
   },
   "feature_types": {
    "risk_score": "continuous",
    "segment": "categorical"
   },
   "reference_samples": {
    "risk_score": [
     0.12,
     0.18,
     0.2,
     0.21,
     0.25,
     0.28,
     0.31,
     0.34
    ],
    "segment": [
     "retail",
     "retail",
     "smb",
     "smb",
     "enterprise",
     "retail"
    ]
   },
   "threshold": 0.2
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "drift_detected": true,
   "features": [
    {
     "drift": true,
     "feature": "risk_score",
     "jensen_shannon": 0.189,
     "ks": 0.5,
     "psi": 0.612345,
     "type": "continuous"
    }
   ],
   "summary": {
    "features_checked": 2,
    "flagged_features": 1,
    "threshold": 0.2
   }
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://modell.halowerk.com/v1/drift-check' -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/3ce537f881c6/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"3ce537f881c6"} 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 modell.halowerk.com.