x402 census · offercheck.offercheck.workers.dev · f4265ba2d38d · JSON
GET /v1/check/url
unprobed
Check a URL before you cite, visit or trust it: liveness, final URL and redirect chain, soft-404 detection, page title, domain registration age (RDAP), robots.txt policy for AI agents, and Wayback Machine snapshot availability. $0.002 per check.
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
| Field | Value |
|---|---|
| URL | https://offercheck.offercheck.workers.dev/v1/check/url |
| Method | GET |
| Price | $0.002 USDC = 2000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0xB9721FDD2EC85F7f604F5BBcA2292d7C4ff6B62c |
| Seller | offercheck.offercheck.workers.dev |
| Catalogs | cdp (row updated 2026-09-26) |
| Listed since (lower bound) | 2026-09-26 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-26 |
| CDP quality counters | 1 calls and 1 unique payers in 30 days, last call 2026-09-26 (catalog-reported, not verified on chain) |
| Category (keyword rule) | crypto-data |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | offercheck · verification, ecommerce, price, availability, url |
Unpaid probe (census of )
| Field | Value |
|---|---|
| Probe | not 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)
| Field | Value |
|---|---|
| Distinct payers | 1 |
| Payments | 1 |
| USDC volume | $0.001 |
| Median payment | $0.001 |
| First / last payment | 2026-09-29 / 2026-09-29 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0xB9721FDD2EC85F7f604F5BBcA2292d7C4ff6B62c |
Declared input and output (extensions.bazaar)
{
"input": {
"method": "GET",
"queryParams": {
"url": "https://example.com/docs/page"
},
"type": "http"
},
"output": {
"type": "json",
"example_truncated": true,
"chars": 793
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://offercheck.offercheck.workers.dev/v1/check/url' -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/f4265ba2d38d/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"f4265ba2d38d"} 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 offercheck.offercheck.workers.dev.