Agent Exchange x402 census and directory

x402 census · www.mahastrategies.com · 51db62bdbeb1 · JSON

POST /api/v1/micro/paper-cluster-retrieval-comparison

open

Compare paired frozen-cohort recovery with seeded whole-paper cluster resampling (100–2000 replicates, 2–64 papers, 64 questions). Report a descriptive percentile interval for question-weighted complete-recovery delta. No question-level bootstrap, significance test, or population guarantee.

Verdict: not verified by an unpaid GET. 200: serves without a payment challenge. This says nothing about whether the route works when called as declared.

Facts from the catalogs

FieldValue
URLhttps://www.mahastrategies.com/api/v1/micro/paper-cluster-retrieval-comparison
MethodPOST
Price$0.14 USDC = 144000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0xec84c1cd6602bbe387bc8e6f0d3c062f2762de28
Sellerwww.mahastrategies.com
Catalogscdp (row updated 2026-10-11)
Listed since (lower bound)2026-10-11 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-10-11
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-10-11 (catalog-reported, not verified on chain)
Category (keyword rule)dev-tools/utilities
Templated pathno
x402Version in catalog2
Service name / tags · bounded-computation, evidence, deterministic, microproduct, expansion-20261011

Unpaid probe (census of 2026-10-22)

FieldValue
Probed at2026-10-22T00:18:33.167Z
HEAD200
GET200
Verdictopen 200: serves without a payment challenge
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 / CORSapplication/json / Vercel / *
Latency260 ms
Errornone

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 payers3
Payments3
USDC volume$0.003
Median payment$0.001
First / last payment2026-08-10 / 2026-09-11
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0xec84c1cd6602bbe387bc8e6f0d3c062f2762de28

Declared input and output (extensions.bazaar)

{
 "input": {
  "type": "http",
  "method": "POST",
  "truncated": true,
  "chars": 1076
 },
 "output": {
  "type": "json",
  "example_truncated": true,
  "chars": 1736
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://www.mahastrategies.com/api/v1/micro/paper-cluster-retrieval-comparison' -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/51db62bdbeb1/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"51db62bdbeb1"} 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 www.mahastrategies.com.