Measured from space, not modeled

Is the ground under any address sinking?

SibFly returns the real, satellite measured ground motion rate in millimeters per year for any US address or coordinate. It comes straight from NASA's Sentinel-1 radar, which has watched the land rise and sink for the past ten years. One call tells you whether the ground under a property is sinking, holding steady, or lifting, with the exact rate, the seasonal swing, and a confidence score. No risk models, no flood maps, no guesswork, just the measured movement of the ground.

Enter an address and check.

Measured, not guessed

The real movement of the ground, read from ten years of satellite radar. Measured, not a prediction or a risk score.

Any address, instant

Send an address or a lat/lon and get clean JSON back in milliseconds: velocity, seasonal swing, trend, and confidence.

Built for apps and agents

Plain REST, self serve API keys, MCP ready, pay per call. Drop it into proptech, insurance, lending, or an AI agent.

Your first report is free

Create an account with just an email and a password and your first full report is on us. No credit card, no phone number, no name.

Free
your first report, no card
$0.40
per report after, via the API
$1.00
per report after, via the site
Create your free account   See full pricing