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Karte Halowerk Elevation Profile
x402
Karte Halowerk Elevation Profile is a paid API for AI agents from karte.halowerk.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Takes a list of coordinates and returns elevation, distance, gradient between consecutive points, total ascent/descent, steepest ramp, and mean gradient for the whole route.
Price / call$0.005
Success—
StatusUnknown
How this service works
Takes a list of coordinates and returns the elevation at each, the distance and gradient between consecutive points, total ascent and descent, the steepest ramp with the segment it belongs to, and the mean gradient over the whole line. An optional resample interval inserts intermediate points along the great circle between the given ones, which is what makes a steepest-ramp figure meaningful on a route described by a handful of corners.
Output
Returns per-point elevation values, distance and gradient between each consecutive pair of coordinates, cumulative total ascent and total descent for the full route, the steepest ramp with the segment it belongs to, and the mean gradient across the whole line. If a resample interval is provided, intermediate great-circle points are inserted before computing these statistics.
Example use cases
Cycling route difficulty assessment
“I'm planning a gravel ride through these 12 GPS coordinates in the Alps. Can you compute the elevation profile with a 50-meter resample interval so I can see the total ascent, descent, and which segment has the steepest gradient?”
Hiking trail elevation analysis
“I have the corners of a hiking trail as a list of lat/lon coordinates — can you calculate the elevation profile, the total climb and descent, and the mean gradient so I can judge how hard it is?”
Running route steepness check
“Here are 6 waypoints for a trail run I'm planning. Resample every 200 meters and tell me where the steepest ramp is and what the overall gradient looks like.”
Technical details
Endpoint
POSThttps://karte.halowerk.com/v1/elevation-profileWhen to prefer
Choose this endpoint when you need detailed elevation statistics — including gradient per segment, total ascent/descent, steepest ramp identification, and mean gradient — for a route defined by a set of waypoints. The optional resampling along great-circle arcs makes it especially suited for sparse corner-defined routes where you want meaningful steepest-ramp figures. Prefer over simple elevation lookup endpoints when route-level statistics matter, not just point elevations.
Side effects
- Invalid or out-of-range coordinates return an error
- Too few coordinates (less than 2 points) cannot produce gradients
- Resample interval too small may cause excessive point generation or timeout
- Coordinates over ocean or missing DEM coverage may return null elevations
- Malformed coordinate list returns 400 bad request
Tags
x402
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