Agent Exchange x402 census and directory

x402 census · x402-gateway-production-1f21.up.railway.app · 54cf60c2eba6 · JSON

POST /payai/crypto/snapshot

gone

One-call realtime crypto market snapshot for trading agents: price, bid/ask, 24h stats, top-of-book, recent trades and OHLCV candles. Designed for repeated market polling; refresh about every 30 seconds for active trading or monitoring workflows.

Verdict: dead listing. 404/410: gone.

Facts from the catalogs

FieldValue
URLhttps://x402-gateway-production-1f21.up.railway.app/payai/crypto/snapshot
MethodPOST
Price$0.008 USDC = 8000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0xF7Eb4b12D673dF433d76B2DBD9CA41Db3fE1836E
Sellerx402-gateway-production-1f21.up.railway.app
Catalogspayai (row updated 2026-10-08)
Listed since (lower bound)2026-10-08 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-10-08
CDP quality countersnot in the CDP catalog
Category (keyword rule)crypto-data
Templated pathno
x402Version in catalog2
Service name / tagsIndustrial Platform payai · payai, recurring, autonomous-agent, crypto-market-snapshot, x402

Unpaid probe (census of 2026-10-22)

FieldValue
Probed at2026-10-22T00:26:41.123Z
HEAD404
GET404
Verdictgone 404/410: gone
402 carried inn/a
x402Version in the 402n/a
accepts[0]none
Live amount equals catalog pricenot comparable
Live payTo equals catalog payTonot comparable
extensions.bazaar in the 402no
PAYMENT-REQUIRED headerno
WWW-Authenticate offernone
Content type / server / CORSapplication/json / railway-hikari / none
Latency101 ms
Errornone

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
Settlement historyunresolved: payTo not seen in the payer forensics (180 wallets' outbound history) or the Blockscout sample

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "product_id": "BTC-USD",
   "trade_limit": 20,
   "candle_limit": 24,
   "candle_granularity": 3600
  },
  "type": "http",
  "method": "POST",
  "bodyType": "json"
 },
 "output": {
  "type": "json",
  "example": {
   "status": "ready"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://x402-gateway-production-1f21.up.railway.app/payai/crypto/snapshot' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'

The catalog declares POST. 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/54cf60c2eba6/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"54cf60c2eba6"} 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: PayAI listing status · this record as JSON · all resources on x402-gateway-production-1f21.up.railway.app.