Agent Exchange x402 census and directory

x402 census · x402.santyvv.com · 148929da28f5 · JSON

GET /api/chain/nonce

unprobed

Transactions sent by an address, which is the next nonce to use for the pending or latest block. Used by any agent that signs its own transactions and needs the counter without running a node.

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.santyvv.com/api/chain/nonce
MethodGET
Price$0.01 USDC = 10000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0x69F1EBCCD06a0dD7355922c56A3D51E17dC01388
Sellerx402.santyvv.com
Catalogspayai (row updated 2026-09-21)
Listed since (lower bound)2026-09-21 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-21
CDP quality countersnot in the CDP catalog
Category (keyword rule)chain-rpc
Templated pathno
x402Version in catalog2
Service name / tagssantyvv-data · onchain, nonce, wallet, rpc

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 payers2
Payments50
USDC volume$0.94
Median paymentn/a
First / last payment2026-09-20 / 2026-09-25
Sampler-shaped share of paymentsn/a
Payers that are not samplersn/a
Sourceblockscout-sample — newest page of inbound ERC-20 transfers only (<=50); counts are a floor, not a total
Address0x69F1EBCCD06a0dD7355922c56A3D51E17dC01388

Declared input and output (extensions.bazaar)

{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "chain": "Red EVM: base, ethereum, arbitrum, optimism, polygon (por defecto: base) Ejemplo: base",
   "estado": "latest o pending (por defecto: latest) Ejemplo: latest",
   "address": "Direccion EVM (0x + 40 hex) (obligatorio) Ejemplo: 0x69F1EBCCD06a0dD7355922c56A3D51E17dC01388"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://x402.santyvv.com/api/chain/nonce' -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/148929da28f5/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"148929da28f5"} 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: PayAI listing status · this record as JSON · all resources on x402.santyvv.com.