Agent Exchange x402 census and directory

x402 census · api.delx.ai · af044dc6e040 · JSON

POST /api/v1/x402/json-uuid-fields-check

live

JSON UUID Fields Check: checks selected fields for canonical UUID text shape using only bounded caller-supplied values. Call when you need a bounded json uuid fields check result before an agent hands structured data or a batch plan to a downstream tool with a stricter contract. Returns the bounded transformation or validation finding with counts, normalized values, and a versioned result contrac…

Verdict: live. The unpaid GET reached a valid 402. The live amount equals the catalog price.

Facts from the catalogs

FieldValue
URLhttps://api.delx.ai/api/v1/x402/json-uuid-fields-check
MethodPOST
Price$0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp
payTo0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2
Sellerapi.delx.ai
Catalogscdp (row updated 2026-09-19), payai (row updated 2026-08-27)
Listed since (lower bound)2026-08-27 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-19
CDP quality counters1 calls and 1 unique payers in 30 days, last call 2026-09-19 (catalog-reported, not verified on chain)
Category (keyword rule)crypto-data
Templated pathno
x402Version in catalog2
Service name / tagsJSON UUID Fields Check · data, schema, batch

Unpaid probe (census of 2026-09-30)

FieldValue
Probed at2026-09-30T23:29:30.555Z
HEAD404
GET402
Verdictlive live: valid 402 to an unpaid GET
402 carried inbody
x402Version in the 4022
accepts[0]{"scheme":"exact","network":"eip155:8453","amount":"1000","payTo":"0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Live payTo equals catalog payToyes
extensions.bazaar in the 402yes
PAYMENT-REQUIRED headerno
WWW-Authenticate offerPayment id="IeVk5t7wGKVbesOf-PrYuZqtXucp
Content type / server / CORSapplication/json / n/a / *
Latency2,739 ms
ErrorPayment required: $0.001 USDC for util_json_uuid_fields_check

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
Distinct payers18
Payments39
USDC volume$0.14
Median payment$0.001
First / last payment2026-08-06 / 2026-09-30
Sampler-shaped share of payments94.9%
Payers that are not samplers1
Sourceforensics-2026-09-30
Address0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2 (contract: EIP7702StatelessDeleGator)

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "fields": [
    "id"
   ],
   "object": {
    "id": "550e8400-e29b-41d4-a716-446655440000"
   }
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "evidence": {
    "external_calls": 0,
    "input_sha256": "8eeb5bc9deefa111f9ffecc6114b6f5c2adf64812314e89c753e9dbcb881aa3c",
    "retained": false
   },
   "operation": "data_batch:json_uuid_fields_check",
   "result": {
    "invalid_fields": [],
    "passed": true
   },
   "schema": "delx/util-json-uuid-fields-check/v1",
   "status": "pass"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://api.delx.ai/api/v1/x402/json-uuid-fields-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/af044dc6e040/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"af044dc6e040"} 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: PayAI listing status · agentic.market (CDP Bazaar front end) · this record as JSON · all resources on api.delx.ai.