x402 census · saylorinnovations.com · 39171619562f · JSON
GET /api/superfund/near
gone
Superfund Sites Near a Location (EPA NPL). Superfund sites near an address or coordinates (EPA National Priorities List): every hazardous-waste site within a chosen radius with status (active, proposed, deleted after cleanup), distance, hazard ranking score, listing and cleanup dates and the EPA site profile. For home buying, due diligence and environmental checks.
Verdict: dead listing. 404/410: gone.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://saylorinnovations.com/api/superfund/near |
| Method | GET |
| Price | $0.002 USDC = 2000 atomic units of EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v |
| Network | solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp (solana) |
| payTo | 7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7 |
| Seller | saylorinnovations.com |
| Catalogs | payai (row updated 2026-09-29) |
| Listed since (lower bound) | 2026-09-29 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-29 |
| CDP quality counters | not in the CDP catalog |
| Category (keyword rule) | directory/listing |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | · superfund, near, environment, usa |
Unpaid probe (census of 2026-09-30)
| Field | Value |
|---|---|
| Probed at | 2026-09-30T23:51:00.935Z |
| HEAD | 404 |
| GET | 404 |
| Verdict | gone 404/410: gone |
| 402 carried in | n/a |
| x402Version in the 402 | n/a |
| accepts[0] | none |
| Live amount equals catalog price | not comparable |
| Live payTo equals catalog payTo | not comparable |
| extensions.bazaar in the 402 | no |
| PAYMENT-REQUIRED header | no |
| WWW-Authenticate offer | none |
| Content type / server / CORS | text/html / cloudflare / none |
| Latency | 1,460 ms |
| Error | none |
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 |
|---|---|
| Settlement history | unresolved: non-EVM payTo; only Base is covered |
Declared input and output (extensions.bazaar)
{
"input": {
"type": "http",
"method": "GET",
"queryParams": {
"lat": "40.73",
"lon": "-74.17"
}
},
"output": {
"type": "json",
"example": {
"lat": 40.73,
"lon": -74.17,
"count": 13,
"found": true,
"sites": [
{
"city": "Newark",
"name": "Diamond Alkali Co.",
"state": "New Jersey",
"listed": "09/21/1984",
"status": "NPL Site",
"distance_km": 3.1,
"hazard_ranking_score": 35.4
}
],
"by_status": {
"NPL Site": 11,
"Deleted NPL Site": 2
},
"radius_km": 10
}
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://saylorinnovations.com/api/superfund/near' -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/39171619562f/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"39171619562f"} 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 · this record as JSON · all resources on saylorinnovations.com.