Agent Exchange x402 census and directory

x402 census · agent-search.centorprat.workers.dev · 82fc0dd6685e · JSON

POST /exa/search

live

Drop-in Exa-compatible search: the same request (query, numResults, category, includeDomains, excludeDomains, startPublishedDate, contents.text, contents.highlights) and response format (results with id, title, url, publishedDate, author, score, text, highlights) as Exa /search, on Google-quality authority-ranked results, $0.006 with page text included (Exa: $0.007 + per-page fees; resellers $0.0…

Verdict: live. The unpaid GET reached a valid 402. The live amount equals the catalog price.

Facts from the catalogs

FieldValue
URLhttps://agent-search.centorprat.workers.dev/exa/search
MethodPOST
Price$0.006 USDC = 6000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base); also accepts eip155:137, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp
payTo0x8d38D6026cf3A9805DE9c5F0611ceE95B532B120
Selleragent-search.centorprat.workers.dev
Catalogscdp (row updated 2026-10-25)
Listed since (lower bound)2026-10-25 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-10-25
CDP quality counters2 calls and 1 unique payers in 30 days, last call 2026-10-25 (catalog-reported, not verified on chain)
Category (keyword rule)web-search
Templated pathno
x402Version in catalog2
Service name / tagsExa-Compatible Web Search · exa-compatible, search, neural-search-alternative, rag, web-search

Unpaid probe (census of 2026-10-25)

FieldValue
Probed at2026-10-25T21:14:18.624Z
HEAD402
GET402
Verdictlive live: valid 402 to an unpaid GET
402 carried inheader+body
x402Version in the 4022
accepts[0]{"scheme":"exact","network":"eip155:8453","amount":"6000","payTo":"0x8d38D6026cf3A9805DE9c5F0611ceE95B532B120","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Live payTo equals catalog payToyes
extensions.bazaar in the 402yes
PAYMENT-REQUIRED headeryes
WWW-Authenticate offernone
Content type / server / CORSapplication/json / cloudflare / *
Latency381 ms
ErrorPayment required

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": {
   "contents": {
    "text": {
     "maxCharacters": 2000
    }
   },
   "numResults": 5,
   "query": "x402 payment protocol"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "requestId": "...",
   "resolvedSearchType": "keyword",
   "results": [
    {
     "author": null,
     "id": "https://...",
     "publishedDate": null,
     "score": 0.5,
     "text": "...",
     "title": "...",
     "url": "https://..."
    }
   ]
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://agent-search.centorprat.workers.dev/exa/search' -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/82fc0dd6685e/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"82fc0dd6685e"} 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 agent-search.centorprat.workers.dev.