# Services from geo-calc.x402tookit.com on Zero

> geo-calc.x402tookit.com serves 12 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/geo-calc.x402tookit.com
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/geo-calc.x402tookit.com/health.json

## Services

- [Geo Calc – WGS84 to UTM/MGRS Converter](https://www.zero.xyz/c/geo-calc-wgs84-to-utm-mgrs-converter-88694c19/llms.txt): $0.02/call via x402. Converts a WGS84 latitude/longitude coordinate pair to UTM (zone, band, easting, northing, hemisphere) and MGRS grid reference, including Norway and Svalbard zone exception handling.
- [Geo Calc – Geodesic Direct (Vincenty)](https://www.zero.xyz/c/geo-calc-geodesic-direct-vincenty-2d8862e8/llms.txt): $0.02/call via x402. Computes the destination latitude/longitude and final bearing from a start point, given an initial bearing and distance, using the Vincenty direct formula on the WGS84 ellipsoid.
- [Geo Calc – Polygon Area, Perimeter & Centroid](https://www.zero.xyz/c/geo-calc-polygon-area-perimeter-centroid-83f3d363/llms.txt): $0.02/call via x402. Calculates the area (m², km², hectares, acres), perimeter (m, km), centroid (lat/lon), and orientation of a lat/lon polygon using spherical excess on the WGS84 equal-area sphere.
- [Geo Calc – Geohash Decode](https://www.zero.xyz/c/geo-calc-geohash-decode-14236b61/llms.txt): $0.02/call via x402. Decodes a geohash string into its center latitude/longitude, bounding box (N/S/E/W), and latitude/longitude error in degrees.
- [Geo Calc – Geohash Encode](https://www.zero.xyz/c/geo-calc-geohash-encode-f94e1794/llms.txt): $0.02/call via x402. Encodes a latitude/longitude coordinate as a geohash string (1–12 characters) and returns the cell bounds, center point, and cell dimensions in meters.
- [Geo Calc Geohash Neighbors](https://www.zero.xyz/c/geo-calc-geohash-neighbors-4f627c84/llms.txt): $0.02/call via x402. Returns the eight adjacent geohash cells (N, NE, E, SE, S, SW, W, NW) for a given geohash, wrapping correctly at 180 degrees longitude.
- [Geo Calc Plus Code Encoder](https://www.zero.xyz/c/geo-calc-plus-code-encoder-a0ad7a0e/llms.txt): $0.02/call via x402. Encodes a latitude/longitude coordinate pair into an Open Location Code (Plus Code), returning the code, its geographic area bounds, and a short local form.
- [Geo Calc UTM/MGRS to WGS84 Reverse Converter](https://www.zero.xyz/c/geo-calc-utm-mgrs-to-wgs84-reverse-converter-8c3d543e/llms.txt): $0.02/call via x402. Converts a UTM (e.g. 18T 585628 4511322) or MGRS (e.g. 18TWL8562811322) grid reference to WGS84 latitude/longitude coordinates.
- [Geo Calc – Geodesic Inverse (Vincenty/WGS84 Distance & Bearings)](https://www.zero.xyz/c/geo-calc-geodesic-inverse-vincenty-wgs84-distance-bearings-3338d6d9/llms.txt): $0.02/call via x402. Computes the ellipsoidal (WGS84 Vincenty) distance and forward/reverse bearings between two lat/lon points, alongside a haversine sphere comparison.
- [Geo Calc – Coordinate Format Converter](https://www.zero.xyz/c/geo-calc-coordinate-format-converter-e3f301fc/llms.txt): $0.02/call via x402. Converts a geographic coordinate between decimal degrees (DD), degrees-minutes-seconds (DMS), and degrees-decimal-minutes (DDM) formats.
- [Geo Calc Bounding Box from Radius](https://www.zero.xyz/c/geo-calc-bounding-box-from-radius-dd581da6/llms.txt): $0.02/call via x402. Computes the minimum bounding box (min/max lat/lon) enclosing a circular radius in meters around a geographic point, with correct handling of poles and the antimeridian.
- [Geo Calc Plus Code Decoder](https://www.zero.xyz/c/geo-calc-plus-code-decoder-91802a51/llms.txt): $0.02/call via x402. Decodes a full or short Plus Code (Open Location Code) to its geographic area, bounding box, and center coordinates, recovering short codes using a reference point.

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)