x402 census · whaletape.xyz · beed53dc20d6 · JSON

GET /markets/class/:asset_class

live

Screen one asset class without pulling all 320 markets: mark price, funding rate and open interest for crypto, equities, commodities, FX, indices or rates

Verdict: live. The unpaid GET reached a valid 402. The live amount differs from the catalog price.

Facts from the catalogs

Field Value

URL https://whaletape.xyz/markets/class/:asset_class

Method GET

Price $0.01 USDC = 10000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8=

payTo 0x25a8b697Da5c0bAF698Fd6BD9701B5e825214145

Seller whaletape.xyz

Catalogs cdp (row updated 2026-09-05)

Listed since (lower bound) 2026-09-05 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-05

CDP quality counters 3 calls and 2 unique payers in 30 days, last call 2026-09-05 (catalog-reported, not verified on chain)

Category (keyword rule) crypto-data

Templated path yes: contains :param or {param}; probed as listed

x402Version in catalog 2

Service name / tags Hyperliquid Smart Money Data API · hyperliquid, crypto, market-data, perps, perpetuals

Unpaid probe (census of 2026-09-30)

Field Value

Probed at 2026-09-30T23:16:44.805Z

HEAD 402

GET 402

Verdict live live: valid 402 to an unpaid GET

402 carried in header+body

x402Version in the 402 1

accepts[0] {"scheme":"exact","network":"base","amount":"50000","payTo":"0x25a8b697Da5c0bAF698Fd6BD9701B5e825214145","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}

Live amount equals catalog price no (live 50000 vs catalog 10000)

Live payTo equals catalog payTo yes

extensions.bazaar in the 402 yes

PAYMENT-REQUIRED header yes

WWW-Authenticate offer none

Content type / server / CORS application/json / cloudflare / *

Latency 5,994 ms

Error Payment required

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 3

Payments 3

USDC volume $0.02

Median payment $0.001

First / last payment 2026-08-24 / 2026-09-17

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x25a8b697Da5c0bAF698Fd6BD9701B5e825214145 (contract)

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "pathParams": {
   "asset_class": "crypto"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "asset_class": "crypto",
   "count": 194,
   "markets": [
    {
     "asset_class": "crypto",
     "coin": "BTC",
     "day_volume": 2824000602.9866595,
     "dex": "",
     "funding": 0.0000298097,
     "mark_px": 77302,
     "open_interest": 36419.31138,
     "symbol": "BTC"
    }
   ],
   "updated_at": "2026-08-23T01:39:43.769674+00:00"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://whaletape.xyz/markets/class/:asset_class' -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/beed53dc20d6/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"beed53dc20d6"} 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 whaletape.xyz.