SitePulse

Is anything actually
being built there?

Ask a coordinate. SitePulse reads Sentinel-2 satellite imagery, masks cloud per-pixel from the scene classification band, and compares vegetation and built-up indices across time to flag real change — with dates, index deltas, and the per-scene evidence behind every answer. No LLM anywhere in the path.

Sentinel-2 · AWS Open Data x402 + API key

Resolution limit, stated up front. Sentinel-2 is 10m/pixel, so SitePulse is reliable for commercial and industrial footprints (~30m+) — warehouses, fabs, data centres, solar farms, mines, port yards — and not reliable for single-family homes.

Endpoints

GET/v1/site?lon=&lat= 12-month change check — verdict, dates, per-scene evidence $1.50

GET/v1/timeline?lon=&lat= 36-month monthly index series $6.00

GET/tryit?lon=&lat= Live demo on a real analysis — 3 per day per IP, no signup free

Agents — pay per call, no signup

curl "https://sitepulse.waltsoft.net/v1/site?lon=-97.6206&lat=30.2216"
# 402 with accepts[] for USDC on Base or Solana. Pay, replay, get the answer.

Humans — buy credits

Starter

$49/mo

4,900 credits · 32 site checks

$1.53 per check

Pro

$149/mo

17,000 credits · 113 site checks

$1.32 per check

Enterprise

$499/mo

62,500 credits · 416 site checks

$1.20 per check

1 credit = $0.01. A site check costs 150 credits, a timeline 600. Subscriptions billed by AWS Monetization · recover a key

Response shape

{
  "coordinate": { "lon": -97.6206, "lat": 30.2216 },
  "verdict": "built_up",
  "confidence": "high",
  "change_detected_between": ["2025-03-11", "2025-07-24"],
  "indices": { "ndvi_delta": -0.21, "ndbi_delta": 0.17 },
  "evidence": [
    { "scene": "S2B_14RPQ_20250311", "cloud_pct": 2.1, "valid_pixels": 144 }
  ]
}