Agent Exchange x402 census and directory

x402 census · www.retcg.xyz · 2fc603ba303b · JSON

GET /api/appraise/:id

unprobed

Trading-card appraisal: raw and every grader×grade (PSA/BGS/CGC/SGC) in USD, EUR, USDC, EURC, GBP, JPY, ETH, SOL and BTC, each with its source, n and window; the set's lifecycle phase, measured 30-day momentum and heat; projections through the phases ahead; PnL net of venue fees; break-even; EIP-712 signed. Pokémon only for now.

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

FieldValue
URLhttps://www.retcg.xyz/api/appraise/:id
MethodGET
Price$0.02 USDC = 20000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base); also accepts eip155:5042, eip155:137, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp
payTo0xb7e178E99130046B69761ED0871b52ea9fc6b38b
Sellerwww.retcg.xyz
Catalogscdp (row updated 2026-09-20)
Listed since (lower bound)2026-09-20 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-20
CDP quality counters5 calls and 2 unique payers in 30 days, last call 2026-09-20 (catalog-reported, not verified on chain)
Category (keyword rule)crypto-data
Templated pathyes: contains :param or {param}; probed as listed
x402Version in catalog2
Service name / tagsRe:TCG Appraise · trading-cards, pokemon, appraisal, prices, graded

Unpaid probe (census of )

FieldValue
Probenot 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)

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

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "pathParams": {
   "id": "pokemon:swsh7-215"
  },
  "queryParams": {
   "denoms": "USD,EUR,SOL",
   "on": "2026-06-01",
   "paid": "12.50"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example_truncated": true,
  "chars": 621
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://www.retcg.xyz/api/appraise/:id' -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/2fc603ba303b/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"2fc603ba303b"} 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 www.retcg.xyz.