x402 census · umpire.vimabrosta.com · 7c7cdaf494a9 · JSON

POST /v1/verdicts/probe

live

Signed verdict with live verification: everything in basic plus up to three network probes of public URLs (HTTP status, keyword, CSS selector, JSON path on the response). Use it to verify a delivered site, API, or published artifact actually works before releasing escrow. Synchronous, Ed25519 signed, verifiable offline. $2.00 per verdict, no account.

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://umpire.vimabrosta.com/v1/verdicts/probe

Method POST

Price $2.00 USDC = 2000000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

payTo 0xd63e74bCB00757C8fDb1817F1558ed8b97C608b6

Seller umpire.vimabrosta.com

Catalogs cdp (row updated 2026-09-03)

Listed since (lower bound) 2026-09-03 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-03

CDP quality counters 1 calls and 1 unique payers in 30 days, last call 2026-09-03 (catalog-reported, not verified on chain)

Category (keyword rule) trading-signals

Templated path no

x402Version in catalog 2

Service name / tags none

Unpaid probe (census of )

Field

Value

Probe

not probed in this build

Latest re-probe

Field Value

Re-probed at 2026-10-01T00:13:18.000Z (cron)

Verdict now live changed from unprobed

HEAD / GET 405 / 402

accepts[0] {"scheme":"exact","network":"eip155:8453","amount":"2000000","payTo":"0xd63e74bCB00757C8fDb1817F1558ed8b97C608b6","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":120,"extra":{"name":"USD Coin","version":"2"}}

Live amount equals catalog price yes

Latency 837 ms

Error none

On-chain facts for the payTo (public address)

Field Value

Distinct payers 3

Payments 8

USDC volume $0.54

Median payment n/a

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

Sampler-shaped share of payments n/a

Payers that are not samplers n/a

Source blockscout-sample — newest page of inbound ERC-20 transfers only (<=50); counts are a floor, not a total

Address 0xd63e74bCB00757C8fDb1817F1558ed8b97C608b6

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "deliverable": {
    "json": {
     "title": "Quarterly summary"
    },
    "text": "Quarterly summary: revenue up 4 percent."
   },
   "job_ref": "job-42",
   "spec": {
    "checks": [
     {
      "schema": {
       "properties": {
        "title": {
         "type": "string"
        }
       },
       "required": [
        "title"
       ],
       "type": "object"
      },
      "type": "json_schema"
     },
     {
      "expect": "match",
      "pattern": "^[A-Z]",
      "type": "regex"
     },
     {
      "expect": {
       "json_path": {
        "op": "eq",
        "path": "ok",
        "value": true
       },
       "status": 200
      },
      "type": "url_probe",
      "url": "https://shop.example/health.json"
     }
    ]
   }
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "receipt": {
    "price": "$2.00"
   },
   "verdict": {
    "passed": true,
    "tier": "probe"
   }
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://umpire.vimabrosta.com/v1/verdicts/probe' -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/7c7cdaf494a9/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"7c7cdaf494a9"} 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 umpire.vimabrosta.com.