Coordinate math for agents: geohash, Plus Codes, UTM and MGRS, geodesics, bounding boxes, polygon area and coordinate formats.
payments ON MAINNET (real money) · 12 live endpoints
| Endpoint | Price | What it answers |
|---|---|---|
GET /bbox-radius | $0.02 | Bounding box (min/max latitude and longitude) enclosing a radius in meters around a point, with pole and 180 degree handling. |
GET /coord-format | $0.02 | Convert a coordinate pair between decimal degrees, degrees-minutes-seconds and degrees-decimal-minutes. |
GET /geodesic-direct | $0.02 | Destination latitude/longitude and final bearing from a start point, initial bearing and distance (WGS84, Vincenty). |
GET /geodesic-inverse | $0.02 | Ellipsoidal (WGS84, Vincenty) distance and bearings between two points, compared with haversine on a sphere. |
GET /geohash-decode | $0.02 | Decode a geohash to its center latitude/longitude, bounding box and the plus-or-minus error in degrees. |
GET /geohash-encode | $0.02 | Encode latitude/longitude as a geohash (1 to 12 characters) with the cell bounds, center and size in meters. |
GET /geohash-neighbors | $0.02 | The eight adjacent geohash cells (N, NE, E, SE, S, SW, W, NW) for a geohash, wrapping at 180 degrees longitude. |
GET /pluscode-decode | $0.02 | Decode a Plus Code (Open Location Code) to its area and center; recovers short codes near a reference point. |
GET /pluscode-encode | $0.02 | Encode latitude/longitude as an Open Location Code (Plus Code) with its area bounds and a short local form. |
GET /polygon-area | $0.02 | Area, perimeter and centroid of a lat,lon polygon using spherical excess on the WGS84 equal-area sphere. |
GET /utm-mgrs-reverse | $0.02 | Convert a UTM (18T 585628 4511322) or MGRS (18TWL8562811322) reference to WGS84 latitude/longitude. |
GET /utm-mgrs | $0.02 | Convert WGS84 latitude/longitude to UTM (zone, band, easting, northing) and MGRS, with Norway/Svalbard zone rules. |
GET /catalog returns this list as JSON. Activity hub · uptime.
Results are computed locally from the coordinates you send using published algorithms (WGS84), provided as is, with no warranty. Not for survey, navigation, aviation or legal boundary use. Verify with a certified source before relying on them. Every paid response carries a disclaimer field.