Directions at machine speed.
A drop-in Directions API that returns turn-by-turn routes, ETAs, and polylines in under 50 ms — on infrastructure you control.
What it does
The Routing API computes the fastest or shortest path between any two or more points, with per-leg geometry, maneuvers, distance, and duration. Profiles cover car, motorcycle, truck (with dimension and weight restrictions), bicycle, and foot.
Because Symt runs on your own hardware or your private cloud region, route computation never leaves your network — and you can rebuild the road graph from fresh basemap data plus your own private road layers whenever you need.
curl "https://api.symt.ai/v1/route?origin=24.7136,46.6753&destination=24.6408,46.7728&profile=car&alternatives=2" \
-H "Authorization: Bearer $SYMT_API_KEY"Run it right here.
Press “Run request” to see a live-shaped response.
Engineered for the hot path.
Sub-50 ms answers
Contraction-hierarchy graph engine tuned for dense city networks. Median route in a metro area returns in tens of milliseconds.
Truck & fleet profiles
Height, weight, axle-load and hazmat restrictions respected per vehicle. Define custom profiles per fleet.
Waypoints & alternatives
Up to 100 ordered waypoints per request, with alternative routes ranked by ETA.
Traffic-aware ETAs
Feed your own GPS probe data back into the engine for live and historical speed profiles you own.
Polyline or GeoJSON
Geometry in encoded polyline5/6 or GeoJSON, ready for any renderer.
Drop-in compatible
A compatibility endpoint accepts the request dialect of the APIs you already use, so migration is a base-URL swap.
Metered cloud providers charge $5–$10 per 1,000 directions calls, rate-limit you at peak, and your movement data trains someone else’s models.
Symt Routing runs flat-rate on your own nodes — effectively $0.40 per 1,000 at Growth volume, unlimited on Sovereign — and every query stays inside your perimeter.
Ship Routing this week.
Free plan, real endpoints, no credit card. Bring the workload you already have — the migration is designed to be boring.