SibFly — measured ground subsidence API (mm/year) for any US address
Is the ground under an address sinking? SibFly returns measured vertical ground motion — subsidence and uplift, in millimeters per year and inches per year — for any US address, from NASA OPERA Sentinel-1 InSAR satellite radar. Measured, not modeled.
Quickstart
curl -X POST https://sibfly.com/api/v1/autonomous/register \
-H "Content-Type: application/json" -d '{"email":"YOUR_EMAIL"}'
curl "https://sibfly.com/api/v1/motion?address=1100+Congress+Ave+Austin+TX" \
-H "Authorization: Bearer sf_live_..."
Returns velocity_vertical_mm_yr / _in_yr, an uncertainty range, assessment_code, confidence, provenance, and cost. Flat $0.40 per covered report; misses are free; free coverage/cost preflight via ?dry_run=1.
What it is
- Data: NASA OPERA DISP-S1 (Copernicus Sentinel-1 C-band InSAR), 30 m grid, 2016–present.
- Vertical mm/year of ground movement (not elevation), measured, per exact 30 m cell, with uncertainty.
- Coverage: US (expanding). Not real-time (source refreshes ~every 12 days); a screening estimate, not survey-grade.
For AI agents
Self-registration, free coverage/cost preflight, idempotency keys, per-key spend caps, scoped browser-safe keys, batch, webhooks, x402 (USDC on Base), test-mode keys, and a hosted MCP server with 9 tools: check_ground_motion, check_portfolio, get_coverage, get_motion_history, get_account, get_usage, ask_inspector, register_agent, buy_credits. The full, authoritative contract lives at https://sibfly.com/llms.txt and https://sibfly.com/openapi.json — always current.
Connect from an MCP client (Cline, Claude, Cursor, any Streamable-HTTP client)
SibFly is a hosted (remote) MCP server — nothing to install or run locally.
- Get an API key (one call, free credits included, no captcha):
curl -X POST https://sibfly.com/api/v1/autonomous/register \
-H "Content-Type: application/json" -d '{"email":"you@example.com"}'
api_key (shown once). Or skip this step: connect without a key and call the register_agent tool from inside MCP.
- Add the server to your MCP client config (Cline: MCP Servers → Remote Servers, or
cline_mcp_settings.json):
{
"mcpServers": {
"sibfly": {
"type": "streamableHttp",
"url": "https://sibfly.com/mcp",
"headers": { "Authorization": "Bearer sf_live_YOUR_KEY" }
}
}
}
/.well-known/oauth-authorization-server.
- Try it: call
get_coverage (free) on any US address, then check_ground_motion ($0.40, misses free). dry_run: true previews coverage, cost, and expected answer quality without billing. Out of credits? The buy_credits tool returns a payment link (card or crypto).
Sandbox: register with {"mode":"test"} for an sf_test_ key — $100 fake credits, synthetic data, rehearse the whole flow for $0.
Use cases
Real-estate due diligence · "is my house sinking?" for home buyers · insurance & mortgage underwriting screening · infrastructure and portfolio subsidence monitoring · geotechnical pre-screening.
A product of SIB Scientific. Screening estimate from satellite radar (NASA OPERA / Sentinel-1 InSAR) — not an engineering, survey, or hazard determination.