x402 census · twin.unykorn.org · bb10b2e88bc8 · JSON

POST /json-canonical

live

Canonical JSON and its digest — Genesis402 / UnyKorn Operator Network

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

Facts from the catalogs

Field Value

URL https://twin.unykorn.org/json-canonical

Method POST

Price $0.002 USDC = 2000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base); also accepts eip155:137, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

payTo 0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB

Seller twin.unykorn.org

Catalogs cdp (row updated 2026-09-25)

Listed since (lower bound) 2026-09-25 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-25

CDP quality counters 2 calls and 2 unique payers in 30 days, last call 2026-09-25 (catalog-reported, not verified on chain)

Category (keyword rule) dev-tools/utilities

Templated path no

x402Version in catalog 2

Service name / tags Canonical JSON and its digest · JSON, deterministic, utility, data, canonicalisation

Unpaid probe (census of 2026-09-30)

Field Value

Probed at 2026-09-30T23:19:03.658Z

HEAD 405

GET 402

Verdict live live: valid 402 to an unpaid GET

402 carried in header+body

x402Version in the 402 2

accepts[0] {"scheme":"exact","network":"eip155:8453","amount":"2000","payTo":"0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}

Live amount equals catalog price yes

Live payTo equals catalog payTo yes

extensions.bazaar in the 402 yes

PAYMENT-REQUIRED header yes

WWW-Authenticate offer x402 realm="genesis402", version="1", Pa

Content type / server / CORS application/json / cloudflare / *

Latency 5,528 ms

Error Payment required

Latest re-probe

Field Value

Re-probed at 2026-10-01T14:13:42.000Z (cron)

Verdict now live unchanged

HEAD / GET 405 / 402

Live amount equals catalog price yes

Latency 777 ms

Error none

On-chain facts for the payTo (public address)

Field Value

Distinct payers 1

Payments 1

USDC volume $0.001

Median payment $0.001

First / last payment 2026-09-30 / 2026-09-30

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "params": {
    "json": {
     "a": 1,
     "b": 2
    }
   }
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "generated_at": "<iso8601>",
   "ok": true,
   "receipt": {
    "amount_usd": 0.002,
    "receipt_id": "g402-<16hex>",
    "tx_hash": "0x<64hex>"
   },
   "type": "json-canonical"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://twin.unykorn.org/json-canonical' -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/bb10b2e88bc8/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"bb10b2e88bc8"} 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 twin.unykorn.org.