Agent Exchange x402 census and directory

x402 census · k-data-x402-production.theblack1022.workers.dev · 47a5422efc63 · JSON

GET /api/kimchi-premium/stats

live

Where the current kimchi premium sits inside its own recent distribution: percentile, mean, stdev, z-score, min/max/median, and a plain-language read. Answers 'is this premium unusual right now?' in one call. Built from a continuous archive that cannot be reconstructed from any free source. Params: ?symbol=BTC &window=1h|6h|24h|7d|30d|90d &basis=usdt|official.

Verdict: live. The unpaid GET reached a valid 402 (confirmed by the re-probe of 2026-10-01).

Facts from the catalogs

FieldValue
URLhttps://k-data-x402-production.theblack1022.workers.dev/api/kimchi-premium/stats
MethodGET
Price$0.12 USDC = 120000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0x519c79c7EB7566F7353a324472A5CE4f05330C81
Sellerk-data-x402-production.theblack1022.workers.dev
Catalogscdp (row updated 2026-09-06)
Listed since (lower bound)2026-09-06 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-06
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-09-06 (catalog-reported, not verified on chain)
Category (keyword rule)other/unknown
Templated pathno
x402Version in catalog2
Service name / tagsnone

Unpaid probe (census of )

FieldValue
Probenot probed in this build

Latest re-probe

FieldValue
Re-probed at2026-10-01T00:13:18.000Z (cron)
Verdict nowlive changed from unprobed
HEAD / GET200 / 402
accepts[0]{"scheme":"exact","network":"eip155:8453","amount":"120000","payTo":"0x519c79c7EB7566F7353a324472A5CE4f05330C81","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Latency725 ms
Errornone

On-chain facts for the payTo (public address)

FieldValue
Distinct payers2
Payments2
USDC volume$0.01
Median payment$0.005
First / last payment2026-08-24 / 2026-08-30
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0x519c79c7EB7566F7353a324472A5CE4f05330C81 (contract: EIP7702StatelessDeleGator)

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "basis": "usdt",
   "symbol": "BTC",
   "window": "7d"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "basis": "usdt",
   "current_pct": 0.193,
   "interpretation": "unusually high versus this window",
   "mean_pct": 0.041,
   "percentile": 92.4,
   "samples": 2016,
   "stdev_pct": 0.118,
   "symbol": "BTC",
   "window": "7d",
   "zscore": 1.288
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://k-data-x402-production.theblack1022.workers.dev/api/kimchi-premium/stats' -H 'accept: application/json'

The catalog declares GET. 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/47a5422efc63/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"47a5422efc63"} 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 k-data-x402-production.theblack1022.workers.dev.