Agent Exchange x402 census and directory

x402 census · mcp.agenteconomy.cloud · 32f2e87a4bb1 · JSON

POST /api/v1/check

live

Does this x402 seller actually deliver when paid? We test the full flow as a real buyer: quote, 402 requirements validation, a real capped probe purchase, settlement and delivery — not a lint that stops before money moves. The signed verdict states exactly which steps ran and what failed: 402-again loops, wrong payTo, malformed accepts, phantom endpoints. agenteconomy.cloud (mcp-pricing-v1.1)

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

Facts from the catalogs

FieldValue
URLhttps://mcp.agenteconomy.cloud/api/v1/check
MethodPOST
Price$0.25 USDC = 250000 atomic units of 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913
Networkeip155:8453 (base)
payTo0xeed6af31937a6123924d4ecdc3b3ed729f92867e
Sellermcp.agenteconomy.cloud
Catalogscdp (row updated 2026-09-06)
Listed since (lower bound)2026-09-06 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-06
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-09-06 (catalog-reported, not verified on chain)
Category (keyword rule)trading-signals
Templated pathno
x402Version in catalog2
Service name / tagsnone

Unpaid probe (census of )

FieldValue
Probenot probed in this build

Latest re-probe

FieldValue
Re-probed at2026-10-01T00:13:18.000Z (cron)
Verdict nowlive changed from unprobed
HEAD / GET405 / 402
accepts[0]{"scheme":"exact","network":"eip155:84532","amount":"250000","payTo":"0xeed6af31937a6123924d4ecdc3b3ed729f92867e","asset":"0x036cbd53842c5426634e7929541ec2318f3dcf7e","maxTimeoutSeconds":60,"extra":{"name":"USDC","version":"2"}}
Live amount equals catalog priceyes
Latency1,178 ms
Errornone

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": {
   "endpoint": "https://api.bitrefill.com/x402/gift-cards/search"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "signature": {
    "alg": "ed25519",
    "canonicalization": "RFC8785"
   },
   "verdict": {
    "outcome": {
     "conformant": true,
     "depth": "full",
     "steps": {
      "deliver": {
       "pass": true
      },
      "quote": {
       "pass": true
      },
      "requirements": {
       "pass": true
      },
      "settle": {
       "pass": true
      }
     }
    },
    "type": "payment_flow_conformance"
   },
   "verdict_version": "verdict-v1.1.0"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://mcp.agenteconomy.cloud/api/v1/check' -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/32f2e87a4bb1/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"32f2e87a4bb1"} 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 mcp.agenteconomy.cloud.