x402 census · api.webbersites.com · df7216be1527 · JSON

GET /api/a11y/check

live

WCAG accessibility check (static analysis): findings mapped to WCAG success criteria with A/AA/AAA levels — alt text, page title, lang, form labels, heading structure, table headers, link purpose, accessible names, duplicate IDs, ARIA role validity, zoom blocking, meta refresh, skip links. Filter with ?level=A|AA|AAA. Honestly reports what static analysis cannot check (contrast, focus, keyboard).

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

Facts from the catalogs

Field Value

URL https://api.webbersites.com/api/a11y/check

Method GET

Price $0.01 USDC = 10000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base)

payTo 0xdd5fcEa81CA6f1EB39FEd5B973DE794293B81ba6

Seller api.webbersites.com

Catalogs cdp (row updated 2026-10-19)

Listed since (lower bound) 2026-10-19 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-10-19

CDP quality counters 6 calls and 4 unique payers in 30 days, last call 2026-10-19 (catalog-reported, not verified on chain)

Category (keyword rule) research/reports

Templated path no

x402Version in catalog 2

Service name / tags WebberSites x402 Data API · Accessibility

Unpaid probe (census of 2026-10-22)

Field Value

Probed at 2026-10-22T00:26:16.622Z

HEAD 402

GET 402

Verdict live live: valid 402 to an unpaid GET

402 carried in header

x402Version in the 402 2

accepts[0] {"scheme":"exact","network":"eip155:8453","amount":"10000","payTo":"0xdd5fcEa81CA6f1EB39FEd5B973DE794293B81ba6","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}

Live amount equals catalog price yes

Live payTo equals catalog payTo yes

extensions.bazaar in the 402 yes

PAYMENT-REQUIRED header yes

WWW-Authenticate offer Payment id="VGE0LB5mv1mUVYVPBEn58eI1iTCD

Content type / server / CORS application/json / cloudflare / *

Latency 208 ms

Error Payment required

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)

Field Value

Distinct payers 73

Payments 162

USDC volume $0.43

Median payment $0.001

First / last payment 2026-06-28 / 2026-09-23

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0xdd5fcEa81CA6f1EB39FEd5B973DE794293B81ba6

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "level": "AA",
   "url": "https://example.com"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "findings": [
    {
     "count": 6,
     "criterion": "1.1.1",
     "detail": "Images without usable text alternatives.",
     "level": "A",
     "name": "Non-text content"
    }
   ],
   "not_checked": [
    "1.4.3 color contrast (needs rendering)"
   ],
   "totals": {
    "by_level": {
     "A": 8,
     "AA": 1,
     "AAA": 0
    },
    "criteria_failed": 3,
    "issues": 9
   },
   "url": "https://example.com"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://api.webbersites.com/api/a11y/check' -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/df7216be1527/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"df7216be1527"} 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 api.webbersites.com.