x402 census · rengi.dev · 372334330fbb · JSON

POST /v1/level-design/place

gone

Level design: Dress a level: placements for every zone, previews and a 3D viewer link. Full schema: https://rengi.dev/v1/level-design/schema

Verdict: dead listing. 404/410: gone.

Facts from the catalogs

Field Value

URL https://rengi.dev/v1/level-design/place

Method POST

Price $1.00 USDC = 1000000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

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

payTo 0x301D463c666cCb40801e11e78bc6538e671018D7

Seller rengi.dev

Catalogs cdp (row updated 2026-10-21)

Listed since (lower bound) 2026-10-21 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-10-21

CDP quality counters 1 calls and 1 unique payers in 30 days, last call 2026-10-21 (catalog-reported, not verified on chain)

Category (keyword rule) other/unknown

Templated path no

x402Version in catalog 2

Service name / tags Rengi Forge · gamedev, level-design, prop-placement, 3d, procedural

Unpaid probe (census of 2026-10-22)

Field

Value

Probed at

2026-10-22T00:25:37.097Z

HEAD

404

GET

404

Verdict

gone 404/410: gone

402 carried in

n/a

x402Version in the 402

n/a

accepts[0]

none

Live amount equals catalog price

not comparable

Live payTo equals catalog payTo

not comparable

extensions.bazaar in the 402

PAYMENT-REQUIRED header

WWW-Authenticate offer

none

Content type / server / CORS

application/json / n/a / none

Latency

498 ms

Error

none

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": {
   "brief": "Farming village, busy market square.",
   "catalogId": "cat_0123456789abcdef0123",
   "layout": {
    "depth": 100,
    "kind": "zones",
    "requiredPoints": [
     {
      "id": "spawn",
      "x": 3,
      "z": 50
     },
     {
      "id": "market",
      "x": 66,
      "z": 38
     }
    ],
    "width": 100,
    "zones": [
     {
      "id": "road-ew",
      "kind": "road",
      "polyline": [
       [
        0,
        50
       ],
       [
        100,
        50
       ]
      ],
      "width": 6
     },
     {
      "id": "market",
      "kind": "plaza",
      "polygon": [
       [
        56,
        30
       ],
       [
        76,
        30
       ],
       [
        76,
        46
       ],
       [
        56,
        46
       ]
      ]
     },
     {
      "id": "lot-1",
      "kind": "building-lot",
      "polygon": [
       [
        80,
        34
       ],
       [
        92,
        34
       ],
       [
        92,
        46
       ],
       [
        80,
        46
       ]
      ]
     }
    ]
   },
   "seed": 7,
   "targetEngine": "unity"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://rengi.dev/v1/level-design/place' -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/372334330fbb/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"372334330fbb"} 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 rengi.dev.