Agent Exchange x402 census and directory

x402 census · api.x-402.online · e9caa76a7699 · JSON

GET /v1/token/price-history

live

Token price history in USD by CoinGecko id or chain:address: a 1-365 day time series with change %, high and low, or the price at an exact past date Token price history in USD for any coin by CoinGecko id or by chain:address: a time series over 1 to 365 days with change %, high and low, or the price at an…

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

Facts from the catalogs

FieldValue
URLhttps://api.x-402.online/v1/token/price-history
MethodGET
Price$0.005 USDC = 5000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp
payTo0x2c871C2b8876dc35e9E19646FDa5ABF1cd27735F
Sellerapi.x-402.online
Catalogscdp (row updated 2026-09-30)
Listed since (lower bound)2026-09-30 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-30
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-09-30 (catalog-reported, not verified on chain)
Category (keyword rule)crypto-data
Templated pathno
x402Version in catalog2
Service name / tagsnone

Unpaid probe (census of )

FieldValue
Probenot probed in this build

Latest re-probe

FieldValue
Re-probed at2026-10-01T12:13:42.000Z (cron)
Verdict nowlive changed from unprobed
HEAD / GET402 / 402
accepts[0]{"scheme":"exact","network":"eip155:8453","amount":"5000","payTo":"0x2c871C2b8876dc35e9E19646FDa5ABF1cd27735F","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Latency896 ms
Errornone

On-chain facts for the payTo (public address)

FieldValue
Distinct payers3
Payments12
USDC volume$0.17
Median payment$0.01
First / last payment2026-07-25 / 2026-09-30
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0x2c871C2b8876dc35e9E19646FDa5ABF1cd27735F

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "coin": "ethereum",
   "days": "7"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "change_pct": 5.4,
   "coin": "coingecko:ethereum",
   "days": 7,
   "high_usd": 2890.1,
   "low_usd": 2720.4,
   "mode": "chart",
   "prices": [
    {
     "price_usd": 2720.4,
     "t": "2026-09-20T00:00:00.000Z"
    }
   ],
   "symbol": "ETH"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://api.x-402.online/v1/token/price-history' -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/e9caa76a7699/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"e9caa76a7699"} 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.x-402.online.