x402 census · penny-army-reference-mainnet.spruceboundgranitestudio.workers.dev · c87fd2661886 · JSON

POST /v1/probes/column-completeness

unprobed

For supplied field names, distinguish absent keys, explicit nulls, blank strings and populated values across JSON records.

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

Field Value

URL https://penny-army-reference-mainnet.spruceboundgranitestudio.workers.dev/v1/probes/column-completeness

Method POST

Price $0.05 USDC = 50000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base)

payTo 0xce53bde2C7a639fc5526AC006a8A7866625d1342

Seller penny-army-reference-mainnet.spruceboundgranitestudio.workers.dev

Catalogs cdp (row updated 2026-09-30)

Listed since (lower bound) 2026-09-30 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-30

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

Category (keyword rule) dev-tools/utilities

Templated path no

x402Version in catalog 2

Service name / tags Penny Army Research · quality, column-completeness

Unpaid probe (census of )

Field

Value

Probe

not 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)

Field

Value

Settlement history

unresolved: payTo not seen in the payer forensics (180 wallets' outbound history) or the Blockscout sample

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "fields": [
    "sku",
    "title",
    "price"
   ],
   "rows": [
    {
     "price": 0,
     "sku": "A-100",
     "title": "Desk"
    },
    {
     "price": null,
     "sku": "A-101",
     "title": " "
    },
    {
     "sku": "A-102"
    },
    {
     "price": 19.5,
     "sku": "A-103",
     "title": "Lamp"
    }
   ]
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "result": {
    "columns": [
     {
      "absent": 0,
      "blanks": 0,
      "field": "sku",
      "nulls": 0,
      "populated": 4
     },
     {
      "absent": 1,
      "blanks": 1,
      "field": "title",
      "nulls": 0,
      "populated": 2
     },
     {
      "absent": 1,
      "blanks": 0,
      "field": "price",
      "nulls": 1,
      "populated": 2
     }
    ],
    "rows": 4
   },
   "schema_version": "research-1",
   "test_only": false,
   "utility_id": "column-completeness"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://penny-army-reference-mainnet.spruceboundgranitestudio.workers.dev/v1/probes/column-completeness' -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/c87fd2661886/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"c87fd2661886"} 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 penny-army-reference-mainnet.spruceboundgranitestudio.workers.dev.