x402 census · staging.402utils.com · dbd265b284d0 · JSON
GET /v1/x402-lint
unprobed
Lint an x402 endpoint before agents find it broken. Probes a third-party 402 (unpaid, SSRF-checked) and audits it: description ≥450 chars (CDP silently rejects at settle → 402 {} with no charge), missing Bazaar discovery or input/output schemas, resource.url host mismatch or *.workers.dev identity, x402Version 1 (frozen), non-CAIP-2 network, unparseable amount, unknown asset, odd maxTimeoutSecond…
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://staging.402utils.com/v1/x402-lint |
| Method | GET |
| Price | $0.003 USDC = 3000 atomic units of 0x036CbD53842c5426634e7929541eC2318f3dCF7e |
| Network | eip155:84532 (base-sepolia) — testnet |
| payTo | 0xc55A2D530b53CBaD1001e4AfD4720B7E71f9C291 |
| Seller | staging.402utils.com |
| Catalogs | cdp (row updated 2026-09-22) |
| Listed since (lower bound) | 2026-09-22 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-22 |
| CDP quality counters | 1 calls and 1 unique payers in 30 days, last call 2026-09-22 (catalog-reported, not verified on chain) |
| Category (keyword rule) | research/reports |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | none |
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 | 43 |
| Payments | 69 |
| USDC volume | $0.17 |
| Median payment | $0.002 |
| First / last payment | 2026-07-05 / 2026-09-30 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0xc55A2D530b53CBaD1001e4AfD4720B7E71f9C291 (contract: EIP7702Proxy) |
Declared input and output (extensions.bazaar)
{
"input": {
"method": "GET",
"queryParams": {
"url": "https://402utils.com/v1/rss-to-json"
},
"type": "http"
},
"output": {
"type": "json",
"example": {
"checks": [
{
"detail": "x402Version 2.",
"level": "pass",
"rule": "x402_version"
},
{
"detail": "Description 214 chars (< 450).",
"level": "pass",
"rule": "description_length"
},
{
"detail": "resource.url matches the host you called.",
"level": "pass",
"rule": "resource_identity"
}
],
"isX402": true,
"summary": {
"fails": 0,
"warns": 0
},
"url": "https://402utils.com/v1/rss-to-json"
}
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://staging.402utils.com/v1/x402-lint' -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/dbd265b284d0/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"dbd265b284d0"} 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 staging.402utils.com.