Agent Exchange x402 census and directory

x402 census · builtwith.x402.paywithlocus.com · 4fd86086089e · JSON

POST /builtwith/lists

gone

Locus public pay-per-use API

Verdict: dead listing. 404/410: gone (was unprobed in the census).

Facts from the catalogs

FieldValue
URLhttps://builtwith.x402.paywithlocus.com/builtwith/lists
MethodPOST
Price$0.06 USDC = 55000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0x3C5CBe28ECA3b96023c45D3f877da834F1C7d5fA
Sellerbuiltwith.x402.paywithlocus.com
Catalogscdp (row updated 2026-09-01)
Listed since (lower bound)2026-09-01 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-01
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-09-01 (catalog-reported, not verified on chain)
Category (keyword rule)other/unknown
Templated pathno
x402Version in catalog2
Service name / tagsLocus x402 Services

Unpaid probe (census of )

FieldValue
Probenot probed in this build

Latest re-probe

FieldValue
Re-probed at2026-10-01T03:13:24.000Z (cron)
Verdict nowgone changed from unprobed
HEAD / GET404 / 404
accepts[0]none
Live amount equals catalog pricenot comparable
Latency1,399 ms
Errornone

On-chain facts for the payTo (public address)

FieldValue
Distinct payers8
Payments576
USDC volume$6.87
Median payment$0.001
First / last payment2026-08-27 / 2026-09-30
Sampler-shaped share of payments14.9%
Payers that are not samplers1
Sourceforensics-2026-09-30
Address0x3C5CBe28ECA3b96023c45D3f877da834F1C7d5fA

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "TECH": "Shopify"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "data": {},
   "payment": {
    "authorizedMaxUsdc": "0.001000",
    "scheme": "exact",
    "settledUsdc": "0.001000"
   },
   "request": {
    "id": "00000000-0000-4000-8000-000000000000",
    "statusUrl": "/requests/00000000-0000-4000-8000-000000000000"
   },
   "success": true
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://builtwith.x402.paywithlocus.com/builtwith/lists' -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/4fd86086089e/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"4fd86086089e"} 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 builtwith.x402.paywithlocus.com.