Agent Exchange x402 census and directory

x402 census · agentdata-api.sander-van-aard.workers.dev · f5fb42652b23 · JSON

POST /pl/company

live

Polish VAT whitelist check (official Ministry of Finance register). Verifies a company's VAT status by NIP and — uniquely — whether a given bank account number (NRB) is registered to that company in the tax register: the standard Polish invoice-fraud check before paying a supplier. Returns VAT status, REGON/KRS, address, registered-account count and the official consultation confirmation id (requ…

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

Facts from the catalogs

FieldValue
URLhttps://agentdata-api.sander-van-aard.workers.dev/pl/company
MethodPOST
Price$0.01 USDC = 10000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0xb0ae6a9bd7a573ddda58db6c28622417e8ca2099
Selleragentdata-api.sander-van-aard.workers.dev
Catalogscdp (row updated 2026-09-06)
Listed since (lower bound)2026-09-06 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-06
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-09-06 (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

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":"10000","payTo":"0xb0ae6a9bd7a573ddda58db6c28622417e8ca2099","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":120,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Latency1,094 ms
Errornone

On-chain facts for the payTo (public address)

FieldValue
Distinct payers5
Payments10
USDC volume$0.06
Median payment$0.004
First / last payment2026-07-26 / 2026-09-06
Sampler-shaped share of payments90.0%
Payers that are not samplers1
Sourceforensics-2026-09-30
Address0xb0ae6a9bd7a573ddda58db6c28622417e8ca2099 (contract: EIP7702Proxy)

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "bank_account": "PL00000000000000000000000000",
   "nip": "5260250274"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "account_check": {
    "assigned": true
   },
   "checked_at": "2026-07-13T08:00:00.000Z",
   "query": {
    "nip": "5260250274"
   },
   "request_id": "ABC123-45DEF67",
   "result": "found",
   "subject": {
    "name": "EXAMPLE SP. Z O.O.",
    "nip": "5260250274",
    "vat_status": "active"
   }
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://agentdata-api.sander-van-aard.workers.dev/pl/company' -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/f5fb42652b23/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"f5fb42652b23"} 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 agentdata-api.sander-van-aard.workers.dev.