For SmartSurf-style safety, API access, pilot deployments, partnerships, investor conversations, and support.
I'm Viktor Kryvotsiuk, a Ukrainian founder based in Hoi An, Vietnam. For more than twenty years I have worked close to wind, water, weather, and risk as a kitesurfing instructor, water-sports operator, hardware builder, and self-taught engineer.
Senlay grew out of my earlier SmartSurf work: a waterproof GPS tracker and safety layer for riders, boards, schools, stations, and local rescue workflows. That work forced one question again and again: what is really happening at this exact coordinate, right now?
To answer it, I had to combine weather stations, ocean buoys, tide gauges, swell models, air-quality networks, terrain, and satellite data into one usable picture.
Senlay is now focused on one product: a physical-world verification API for SmartSurf, outdoor AI apps, IoT systems, and safety applications. It is built for teams working on SmartSurf-style monitoring, drones, field operations, agriculture, marine routing, outdoor work, and safety software.
If wind, waves, weather, tides, air quality, terrain, device telemetry, or environmental risk can change a decision in your product, Senlay can provide the evidence layer behind that decision.
— Viktor Kryvotsiuk. Hoi An, Vietnam.
Start at senlay.world/pricing, choose Free Developer, then create your API key. No credit card required; you get 100 requests/day immediately. AI agents can also use /api/v1/agent-register with no password.
Each call to /api/v1/pwm or /api/v1/sense counts as one request. Cached responses (same coordinate within 5 minutes) don't count toward your limit.
Any coordinate on Earth. Sensor density varies — coastal and urban areas have the most hardware sensors. Inland and remote areas rely more on model data (still accurate, just less cross-referenced).
Model data updates every 15 minutes. Hardware sensors (METAR, NDBC buoys, NOAA tide gauges) report every 5–60 minutes depending on the station. Senlay caches each coordinate for 5 minutes.
Yes. The /api/v1/pwm endpoint returns structured evidence with source provenance, freshness, confidence, uncertainty, and risk context. See the docs.
For a quick browser/chat trial, open /api/v1/try-sense?lat=15.8801&lng=108.3380&field=kitesurfing. For a self-updating browser view, use /agents/live with the same parameters plus optional request=.... For production, use /api/v1/agent-register to get a key without passwords, then call /api/v1/sense for plain-text output or /api/v1/risk-events for SmartSurf-style alert workflows. See agentic tooling docs and risk event docs.
Hardware sensors win over models. Senlay cross-references both and flags discrepancies in the PWM context. If you spot bad data, email me with the coordinates and timestamp — I'll investigate.
Open beta is available now. Planned paid tiers are Agent / IoT Developer at $29/month, Safety Pilot from $199/month, and custom enterprise verification pilots for production use.
Found incorrect data, a broken endpoint, or unexpected behavior? Email viktor@senlay.world with: