Agent Exchange x402 census and directory

x402 census · gpt.558686.xyz · 0ad9c5b93c1d · JSON

POST /v1/extract/schema

live

No description in any catalog.

Verdict: live. The unpaid GET reached a valid 402 (confirmed by the re-probe of 2026-10-02).

Facts from the catalogs

FieldValue
URLhttps://gpt.558686.xyz/v1/extract/schema
MethodPOST
Price$0.50 USDC = 500000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0x1f0130669ca6fd02e025a984cc038f139df19a2f
Sellergpt.558686.xyz
Catalogscdp (row updated 2026-09-29)
Listed since (lower bound)2026-09-29 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-29
CDP quality counters2 calls and 1 unique payers in 30 days, last call 2026-09-29 (catalog-reported, not verified on chain)
Category (keyword rule)inference/llm
Templated pathno
x402Version in catalog2
Service name / tagsnone

Unpaid probe (census of )

FieldValue
Probenot probed in this build

Latest re-probe

FieldValue
Re-probed at2026-10-02T11:13:42.000Z (cron)
Verdict nowlive changed from unprobed
HEAD / GET402 / 402
accepts[0]{"scheme":"exact","network":"eip155:8453","amount":"500000","payTo":"0x1f0130669ca6fd02e025a984cc038f139df19a2f","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Latency1,703 ms
Errornone

On-chain facts for the payTo (public address)

FieldValue
Distinct payers74
Payments175
USDC volume$0.40
Median payment$0.0029
First / last payment2026-06-23 / 2026-09-30
Sampler-shaped share of payments100.0%
Payers that are not samplers0
Sourceforensics-2026-09-30
Address0x1f0130669ca6fd02e025a984cc038f139df19a2f

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "content": "Invoice #INV-2024-118 from Acme Corp, dated 2026-09-15, total $1,240.00, contact billing@acme.example",
   "instructions": "Normalize the total to a number without currency symbols.",
   "schema": {
    "properties": {
     "contactEmail": {
      "type": "string"
     },
     "date": {
      "type": "string"
     },
     "invoiceNumber": {
      "type": "string"
     },
     "total": {
      "type": "number"
     },
     "vendor": {
      "type": "string"
     }
    },
    "required": [
     "invoiceNumber",
     "vendor",
     "total"
    ],
    "type": "object"
   }
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "extracted": {
    "contactEmail": "billing@acme.example",
    "date": "2026-09-15",
    "invoiceNumber": "INV-2024-118",
    "total": 1240,
    "vendor": "Acme Corp"
   },
   "fieldCount": 5,
   "model": "gpt-6-sol",
   "schema": "provided",
   "timestamp": 1759100000000
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://gpt.558686.xyz/v1/extract/schema' -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/0ad9c5b93c1d/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"0ad9c5b93c1d"} 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 gpt.558686.xyz.