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geo.halowerk.com H3 Cell Operations
x402
geo.halowerk.com H3 Cell Operations is a paid API for AI agents from geo.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-13).
Creates H3 cells from coordinates, finds neighbors, or changes cell resolution using Uber's H3 hierarchical hexagonal geospatial indexing system
Price / call$0.003
Success—
StatusUnknown
How this service works
Creates or inspects H3 cells and optionally returns neighbors or changes resolution. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age.
Output
Returns the H3 cell token for the given coordinate and resolution, or the set of neighbor cell tokens for a k-ring query, or the new cell token at the changed resolution. Missing facts are returned as null with field names listed in unavailable_fields. Derived values include their computation method.
Example use cases
Hexagonal zone lookup for delivery routing
“I have a delivery pickup at latitude 40.7128, longitude -74.0060 — can you get me the H3 cell at resolution 8 so I can group it with nearby orders in the same hexagonal zone?”
Spatial proximity analysis via k-ring neighbors
“Given the H3 cell token '8928308280fffff', find all neighboring cells within 3 rings so I can identify which hexagons are close enough to be considered nearby.”
Coarsen H3 cell to lower resolution
“I have an H3 cell at resolution 10 — '8a2a1072b59ffff' — can you change its resolution to 6 so I can do a higher-level regional aggregation?”
Technical details
Endpoint
POSThttps://geo.halowerk.com/v1/h3-cellWhen to prefer
Choose this endpoint when working with Uber's H3 hexagonal spatial indexing system specifically — for encoding coordinates into H3 tokens, finding k-ring neighbors, or changing cell resolution. Prefer over geohash or S2 endpoints when your downstream system expects H3 cell IDs. Prefer over custom spatial queries when you need standardized hexagonal tessellation with consistent area per resolution level.
Side effects
- Invalid latitude/longitude values outside allowed ranges return validation errors
- H3 resolution out of range 0-15 causes rejection
- Cell token string malformed or unrecognized returns error
- k value exceeding maximum of 20 is rejected
- Missing required fields for the chosen operation (e.g. no lat/lon for from-coordinate) returns null or error
- Operation enum value not recognized
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| k | integer | |
| lat | number | |
| lon | number | |
| cell | string | |
| operation | string | |
| resolution | integer |
Tags
x402
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