x402 census · api.hyperextend.xyz · 3e74b9d5bc34 · JSON

GET /v1/candles/BTC/1m/latest

live

The most-recent N OHLCV candles (≤5000). Same per-row pricing as the windowed read ($0.00001 base for main/spot, $0.000025 premium for HIP-3/HIP-4); candles lag ~2 days.

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

Facts from the catalogs

Field Value

URL https://api.hyperextend.xyz/v1/candles/BTC/1m/latest

Method GET

Price $0.002 USDC = 2000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base); also accepts hyperliquid:mainnet

payTo 0x548fC289526ab2F0391D562a723cdA64Bbf1abc4

Seller api.hyperextend.xyz

Catalogs cdp (row updated 2026-09-30)

Listed since (lower bound) 2026-09-30 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-30

CDP quality counters 42 calls and 22 unique payers in 30 days, last call 2026-09-30 (catalog-reported, not verified on chain)

Category (keyword rule) crypto-data

Templated path no

x402Version in catalog 2

Service name / tags hyperextend · hyperliquid, market-data, candles, open-interest, hip-3

Unpaid probe (census of 2026-09-30)

Field Value

Probed at 2026-09-30T23:12:09.406Z

HEAD 405

GET 402

Verdict live live: valid 402 to an unpaid GET

402 carried in header+body

x402Version in the 402 2

accepts[0] {"scheme":"exact","network":"eip155:8453","amount":"2000","payTo":"0x548fC289526ab2F0391D562a723cdA64Bbf1abc4","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":60,"extra":{"name":"USD Coin","version":"2"}}

Live amount equals catalog price yes

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 / uvicorn / none

Latency 5,666 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 14

Payments 38

USDC volume $0.33

Median payment $0.0019

First / last payment 2026-05-31 / 2026-09-29

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x548fC289526ab2F0391D562a723cdA64Bbf1abc4 (contract: CoinbaseSmartWallet)

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "dex": "main",
   "n": 100
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "c": "42080.0",
   "close_time": 1700000059999,
   "h": "42100.0",
   "interval": "1m",
   "l": "41950.0",
   "n": 340,
   "o": "42000.0",
   "open_time": 1700000000000,
   "v": "12.5"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://api.hyperextend.xyz/v1/candles/BTC/1m/latest' -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/3e74b9d5bc34/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"3e74b9d5bc34"} 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.hyperextend.xyz.