x402 census · poolproof.ru · fa779fa456f8 · JSON

GET /v1/chain

live

Is this chain alive: TVL trend over 1y/6m/90d/30d

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

Facts from the catalogs

Field Value

URL https://poolproof.ru/v1/chain

Method GET

Price $0.003 USDC = 3000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network base (base)

payTo 0x11Efa031D56316bD63720d172f9d5c1448e9a21F

Seller poolproof.ru

Catalogs cdp (row updated 2026-09-09)

Listed since (lower bound) 2026-09-09 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-09

CDP quality counters 2 calls and 2 unique payers in 30 days, last call 2026-09-09 (catalog-reported, not verified on chain)

Category (keyword rule) other/unknown

Templated path no

x402Version in catalog 1

Service name / tags none

Unpaid probe (census of )

Field

Value

Probe

not probed in this build

Latest re-probe

Field Value

Re-probed at 2026-10-01T08:13:42.000Z (cron)

Verdict now live changed from unprobed

HEAD / GET 501 / 402

accepts[0] {"scheme":"exact","network":"base","amount":"3000","payTo":"0x11Efa031D56316bD63720d172f9d5c1448e9a21F","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":60,"extra":{"name":"USD Coin","version":"2"}}

Live amount equals catalog price yes

Latency 1,064 ms

Error none

On-chain facts for the payTo (public address)

Field Value

Distinct payers 3

Payments 4

USDC volume $0.04

Median payment $0.0075

First / last payment 2026-08-24 / 2026-09-14

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x11Efa031D56316bD63720d172f9d5c1448e9a21F

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "properties": {
    "chain": {
     "description": "Chain name as used by DefiLlama",
     "pattern": "^[A-Za-z0-9 ._-]{1,40}$",
     "type": "string"
    }
   },
   "required": [
    "chain"
   ],
   "type": "object"
  },
  "type": "http"
 },
 "output": {
  "type": "json"
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://poolproof.ru/v1/chain' -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/fa779fa456f8/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"fa779fa456f8"} 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 poolproof.ru.