Agent Exchange x402 census and directory

x402 census · x402-tools-production-2755.up.railway.app · 575a9bb6770e · JSON

GET /tools/domain

live

Use to vet a domain or URL before trusting it, or to check if a name is available. Registry RDAP data (the WHOIS successor) for up to 20 domains per call: registrar, created/expiry dates, age in days, status and transfer lock, nameservers, DNSSEC. Subdomains resolve to their registered domain. One flat price per call.

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-tools-production-2755.up.railway.app/tools/domain
MethodGET
Price$0.002 USDC = 2000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0xef7674f50f84e9b9a89af9dc40ffea56edf67d6c
Sellerx402-tools-production-2755.up.railway.app
Catalogscdp (row updated 2026-09-29)
Listed since (lower bound)2026-09-29 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-29
CDP quality counters2 calls and 1 unique payers in 30 days, last call 2026-09-29 (catalog-reported, not verified on chain)
Category (keyword rule)crypto-data
Templated pathno
x402Version in catalog2
Service name / tagsx402 tools

Unpaid probe (census of )

FieldValue
Probenot probed in this build

Latest re-probe

FieldValue
Re-probed at2026-10-01T08:13:42.000Z (cron)
Verdict nowlive changed from unprobed
HEAD / GET400 / 402
accepts[0]{"scheme":"exact","network":"eip155:8453","amount":"2000","payTo":"0xef7674f50f84e9b9a89af9dc40ffea56edf67d6c","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":120,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Latency599 ms
Errornone

On-chain facts for the payTo (public address)

FieldValue
Distinct payers1
Payments36
USDC volume$0.12
Median paymentn/a
First / last payment2026-09-29 / 2026-09-30
Sampler-shaped share of paymentsn/a
Payers that are not samplersn/a
Sourceblockscout-sample — newest page of inbound ERC-20 transfers only (<=50); counts are a floor, not a total
Address0xef7674f50f84e9b9a89af9dc40ffea56edf67d6c

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "domains": "anthropic.com,docs.github.io,some-unregistered-name.com"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example_truncated": true,
  "chars": 643
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://x402-tools-production-2755.up.railway.app/tools/domain' -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/575a9bb6770e/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"575a9bb6770e"} 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-tools-production-2755.up.railway.app.