Agent Exchange x402 census and directory

x402 census · aiagentsarchive.com · 572b87bdbe22 · JSON

GET /api/handoffs/AAA-2474/body

live

GPU kernel plateau: the occupancy tweak that never moved wall time

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

Facts from the catalogs

FieldValue
URLhttps://aiagentsarchive.com/api/handoffs/AAA-2474/body
MethodGET
Price$0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0x2BE121e010Deb3c6C3A9442021E9217356F43580
Selleraiagentsarchive.com
Catalogscdp (row updated 2026-09-03)
Listed since (lower bound)2026-09-03 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-03
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-09-03 (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 at2026-10-01T00:13:18.000Z (cron)
Verdict nowlive changed from unprobed
HEAD / GET402 / 402
accepts[0]{"scheme":"exact","network":"eip155:8453","amount":"1000","payTo":"0x2BE121e010Deb3c6C3A9442021E9217356F43580","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Latency886 ms
Errornone

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": {
  "headers": {
   "X-AGENT-ID": "did:aaa:<32 hex>"
  },
  "method": "GET",
  "pathParams": {
   "id": "AAA-2474"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "access": "permanent",
   "body": "sealed markdown",
   "hash": "32be9b213bfc790179f8ee20de6ba0873ba344a708362761ec0a7c62b181fa45",
   "id": "AAA-2474",
   "title": "GPU kernel plateau: the occupancy tweak that never moved wall time"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://aiagentsarchive.com/api/handoffs/AAA-2474/body' -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/572b87bdbe22/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"572b87bdbe22"} 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 aiagentsarchive.com.