Has this place been built on or cleared in the last 12 months
Has this place been built on or cleared in the last 12 months? Sentinel-2 satellite change detection for any lat/lon: NDVI/NDBI deltas, change direction, confidence and the scene-by-scene evidence.
by sitepulse.waltsoft.net · discovered, not yet claimed by its owner · updated 2026-10-02
Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.
What it does
Has this place been built on or cleared in the last 12 months? Sentinel-2 satellite change detection for any lat/lon: NDVI/NDBI deltas, change direction, confidence and the scene-by-scene evidence.
Tags: satellite · construction · landuse · change-detection · geospatial · bazaar
Call contract
- Method
- GET
- Input
- query parameters
- Output
- json
- Last paid call
- 2026-10-02
{
"lat": "30.2216",
"lon": "-97.6206"
}{
"baseline": {
"from": "2025-08-14",
"ndbi": -0.08,
"ndvi": 0.31,
"to": "2025-10-02"
},
"change_detected": true,
"change_direction": "built-up",
"confidence": "high",
"recent": {
"from": "2026-06-11",
"ndbi": 0.04,
"ndvi": 0.12,
"to": "2026-08-08"
},
"scenes_used": 9,
"site": {
"lat": 30.2216,
"lon": -97.6206
}
}Use with an agent
- Discover. Agents find this listing with
GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP toolsearch_resources, or/discovery/resources. - Inspect. Fetch
/resources/54137.jsonfor the price and payment options. - Pay. Call
GET https://sitepulse.waltsoft.net/v1/site. The provider answers402with its payment requirements. An x402 client signs one of the options below and retries withPAYMENT-SIGNATURE. - Execute. The provider returns
200with the data. Agent Bazaar is not in the request path and never sees your payment.
For humans
You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, Solana, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.
Pricing & payment
- Price
- $1.5 / request
- Protocol
- x402 v2
- Auth
- No account or API key. Pay per request.
- Networks
- Base, Solana
- Demand
- 3 calls · 1 unique payers in 30d (public x402 Bazaar data)
x402 payment requirements
| Scheme | Network | Asset | Amount | Pay to | Timeout |
|---|---|---|---|---|---|
| exact | Base base | USDC | $1.5 | 0x318A4B4764eb37c3FCBcE434713128143815FD57 | 300s |
| exact | Solana solana | USDC | $1.5 | GsKr5q9TmiJQcEgUpBp2X6SmvSg3dnXuw2uxYJxgPTk8 | 300s |
accepts[] (raw JSON)
[
{
"scheme": "exact",
"network": "base",
"payTo": "0x318A4B4764eb37c3FCBcE434713128143815FD57",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "1500000",
"amountUsd": 1.5,
"maxTimeoutSeconds": 300
},
{
"scheme": "exact",
"network": "solana",
"payTo": "GsKr5q9TmiJQcEgUpBp2X6SmvSg3dnXuw2uxYJxgPTk8",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "1500000",
"amountUsd": 1.5,
"maxTimeoutSeconds": 300
}
]Schemas
Output schema (JSON Schema)
{
"example": {
"baseline": {
"from": "2025-08-14",
"ndbi": -0.08,
"ndvi": 0.31,
"to": "2025-10-02"
},
"change_detected": true,
"change_direction": "built-up",
"confidence": "high",
"recent": {
"from": "2026-06-11",
"ndbi": 0.04,
"ndvi": 0.12,
"to": "2026-08-08"
},
"scenes_used": 9,
"site": {
"lat": 30.2216,
"lon": -97.6206
}
},
"type": "json"
}Example shape — generated from the schema, not a captured live response
{
"baseline": {
"from": "2025-08-14",
"ndbi": -0.08,
"ndvi": 0.31,
"to": "2025-10-02"
},
"change_detected": true,
"change_direction": "built-up",
"confidence": "high",
"recent": {
"from": "2026-06-11",
"ndbi": 0.04,
"ndvi": 0.12,
"to": "2026-08-08"
},
"scenes_used": 9,
"site": {
"lat": 30.2216,
"lon": -97.6206
}
}Examples
curl "https://sitepulse.waltsoft.net/v1/site"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paidconst res = await fetch("https://sitepulse.waltsoft.net/v1/site");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}import httpx
res = httpx.get("https://sitepulse.waltsoft.net/v1/site")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerDetails
- Provider
- sitepulse.waltsoft.net
- Endpoint
- https://sitepulse.waltsoft.net/v1/site
- Machine-readable
/resources/54137.json