Agent Exchange x402 census and directory

x402 census · api.lastlookdata.com · 897207202bee · JSON

GET /api/crypto/price

live

LastLook Data — current price, 24h change, market cap, and volume for any supported cryptocurrency. Use ?coin=BTC|ETH|SOL|BNB|XRP|ADA|AVAX|DOGE|LINK|DOT|etc. Source: CoinGecko.

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

Facts from the catalogs

FieldValue
URLhttps://api.lastlookdata.com/api/crypto/price
MethodGET
Price$0.02 USDC = 20000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0xB4848d1b4b7E31B75b9b30d717F89777dC65D68e
Sellerapi.lastlookdata.com
Catalogscdp (row updated 2026-10-21)
Listed since (lower bound)2026-10-21 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-10-21
CDP quality counters5 calls and 3 unique payers in 30 days, last call 2026-10-21 (catalog-reported, not verified on chain)
Category (keyword rule)crypto-data
Templated pathno
x402Version in catalog2
Service name / tagsnone

Unpaid probe (census of 2026-10-22)

FieldValue
Probed at2026-10-22T00:33:30.323Z
HEAD402
GET402
Verdictlive live: valid 402 to an unpaid GET
402 carried inheader
x402Version in the 4022
accepts[0]{"scheme":"exact","network":"eip155:8453","amount":"20000","payTo":"0xB4848d1b4b7E31B75b9b30d717F89777dC65D68e","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Live payTo equals catalog payToyes
extensions.bazaar in the 402yes
PAYMENT-REQUIRED headeryes
WWW-Authenticate offernone
Content type / server / CORSapplication/json / railway-hikari / none
Latency114 ms
ErrorPayment 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)

FieldValue
Distinct payers63
Payments138
USDC volume$29.10
Median payment$0.05
First / last payment2026-05-30 / 2026-09-17
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0xB4848d1b4b7E31B75b9b30d717F89777dC65D68e

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "coin": "BTC"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "as_of": "2026-06-23T12:00:00Z",
   "change_24h_pct": 2.43,
   "market_cap_usd": 1332000000000,
   "name": "Bitcoin",
   "price_usd": 67500.5,
   "service": "LastLook Data",
   "source": "CoinGecko",
   "symbol": "BTC",
   "volume_24h_usd": 28500000000
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://api.lastlookdata.com/api/crypto/price' -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/897207202bee/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"897207202bee"} 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.lastlookdata.com.