Open Data · head-to-head
Callook.info vs Open Data Minneapolis
Callook.info is a free, keyless lookup service for FCC-licensed US amateur radio callsigns, returning license status, operator class, name, and registered address as either JSON or XML. A live request for a real callsign returns a wildcard Access-Control-Allow-Origin header with no authentication required, confirming it's safe to call directly from browser code.
Open Data Minneapolis is the city's ArcGIS Hub portal, publishing GIS layers and non-spatial datasets — from 311 service requests to crime incidents — as a standard Esri Hub site. Its DCAT-US JSON feed and Hub search API expose the full catalogue for machine consumption at no cost and without a key.
| Callook.info | Open Data Minneapolis | |
|---|---|---|
| Authentication | None | None |
| Pricing | free | free |
| Formats | JSON, XML | JSON, GeoJSON, CSV |
| CORS | yes | yes |
| HTTPS | Yes | Yes |
Open Data Minneapolis supports 3 response formats, while Callook.info offers fewer — pick Open Data Minneapolis for more integration flexibility.