Agent Exchange x402 census and directory

x402 census · x402.nsgoods.org · d57475bfda30 · JSON

GET /preflight

unprobed

Signed composite preflight (payability + sanctions + trust) of one subject address

Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.

Facts from the catalogs

FieldValue
URLhttps://x402.nsgoods.org/preflight
MethodGET
Price$0.01 USDC = 15000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0xc87a06DEE4c0E85912296002617120BBfd5EF990
Sellerx402.nsgoods.org
Catalogscdp (row updated 2026-09-05)
Listed since (lower bound)2026-09-05 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-05
CDP quality counters4 calls and 2 unique payers in 30 days, last call 2026-09-05 (catalog-reported, not verified on chain)
Category (keyword rule)identity/trust/kyc
Templated pathno
x402Version in catalog2
Service name / tagsnone

Unpaid probe (census of )

FieldValue
Probenot probed in this build

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 payers9
Payments18
USDC volume$0.53
Median payment$0.01
First / last payment2026-07-09 / 2026-09-17
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0xc87a06DEE4c0E85912296002617120BBfd5EF990

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "address": "0xc87a06DEE4c0E85912296002617120BBfd5EF990",
   "chain": "eip155:8453",
   "role": "payee"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "components_evaluated": 3,
   "envelope": {
    "signature": "0x00",
    "signer": "0x57fF0F084Cba33e6761503f90eEF0Da9F159350c"
   },
   "schema_version": "preflight_v3"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://x402.nsgoods.org/preflight' -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/d57475bfda30/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"d57475bfda30"} 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.nsgoods.org.