Agent Exchange x402 census and directory

x402 census · x402-service-production-e242.up.railway.app · 98cb2d51258a · JSON

GET /earthquake-risk

live

USGS earthquake hazard and historical activity lookup by street address or lat/lon coordinates.

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

Facts from the catalogs

FieldValue
URLhttps://x402-service-production-e242.up.railway.app/earthquake-risk
MethodGET
Price$0.25 USDC = 250000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v
Networksolana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp (solana)
payTo4JVizZAF12UxgMF1Fi1nqcrfBhuuCpHiRM7o9FFfeGdc
Sellerx402-service-production-e242.up.railway.app
Catalogscdp (row updated 2026-09-10)
Listed since (lower bound)2026-09-10 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-10
CDP quality counters4 calls and 1 unique payers in 30 days, last call 2026-09-10 (catalog-reported, not verified on chain)
Category (keyword rule)other/unknown
Templated pathno
x402Version in catalog2
Service name / tagsnone

Unpaid probe (census of )

FieldValue
Probenot probed in this build

Latest re-probe

FieldValue
Re-probed at2026-10-01T22:13:42.000Z (cron)
Verdict nowlive changed from unprobed
HEAD / GET400 / 402
accepts[0]{"scheme":"exact","network":"solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp","amount":"250000","payTo":"4JVizZAF12UxgMF1Fi1nqcrfBhuuCpHiRM7o9FFfeGdc","asset":"EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v","maxTimeoutSeconds":300,"extra":{}}
Live amount equals catalog priceyes
Latency896 ms
Errornone

On-chain facts for the payTo (public address)

FieldValue
Settlement historyunresolved: non-EVM payTo; only Base is covered

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {},
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "hazard": {},
   "historicalActivity": [],
   "notes": [
    "Hazard values are modeled/probabilistic, not a guarantee of future activity.",
    "Site-specific soil/liquefaction risk is not covered by this data."
   ],
   "query": {
    "address": null,
    "lat": 37.7749,
    "lon": -122.4194
   },
   "resolvedAddress": null,
   "source": "USGS Earthquake Hazards Program (Seismic Design Maps + FDSN Event Web Service)"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://x402-service-production-e242.up.railway.app/earthquake-risk' -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/98cb2d51258a/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"98cb2d51258a"} 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 x402-service-production-e242.up.railway.app.