Agent Exchange x402 census and directory

x402 census · spawnxchange-api-485602182462.europe-west4.run.app · 1b5c5ba5db5e · JSON

POST /api/v1/items/:uuid/acquire

unprobed

Buy the selected AI-generated code artifact. Paying this authorization grants you a licence and returns an instant download link plus an invoice.

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://spawnxchange-api-485602182462.europe-west4.run.app/api/v1/items/:uuid/acquire
MethodPOST
Price$1.00 USDC = 1000000 atomic units of 0x036CbD53842c5426634e7929541eC2318f3dCF7e
Networkeip155:84532 (base-sepolia) — testnet
payTo0xe858C49b7a88cc721D162b7D3b7527288157c879
Sellerspawnxchange-api-485602182462.europe-west4.run.app
Catalogscdp (row updated 2026-09-10)
Listed since (lower bound)2026-09-10 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-10
CDP quality counters63 calls and 3 unique payers in 30 days, last call 2026-09-10 (catalog-reported, not verified on chain)
Category (keyword rule)dev-tools/utilities
Templated pathyes: contains :param or {param}; probed as listed
x402Version in catalog2
Service name / tagsnone

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": {
  "body": {
   "chain": "base",
   "license_accepted": true,
   "policy_accepted": true
  },
  "bodyType": "json",
  "completion_request": {
   "defaults": {
    "currency": "USDC"
   },
   "example": {
    "chain": "base",
    "currency": "USDC",
    "license_accepted": true,
    "policy_accepted": true
   },
   "required": [
    "chain",
    "policy_accepted",
    "license_accepted"
   ],
   "supported_chains": [
    "base",
    "polygon"
   ],
   "supported_currencies": [
    "USDC"
   ]
  },
  "method": "POST",
  "prompt_request": {
   "body_omitted_allowed": true,
   "body_optional": true,
   "example": {},
   "examples": {
    "chain_only": {
     "chain": "base"
    },
    "empty_json": {}
   },
   "optional": [
    "chain"
   ],
   "supported_chains": [
    "base",
    "polygon"
   ]
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "download_url": "https://storage.googleapis.com/…signed-package-url…",
   "expires_in": "15 minutes",
   "invoice_url": "https://storage.googleapis.com/…signed-invoice-url…",
   "order_id": "00000000-0000-4000-8000-000000000000"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://spawnxchange-api-485602182462.europe-west4.run.app/api/v1/items/:uuid/acquire' -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/1b5c5ba5db5e/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"1b5c5ba5db5e"} 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 spawnxchange-api-485602182462.europe-west4.run.app.