Mapion API is a business-focused map API platform operated by ONE COMPATH, a TOPPAN Group company. It offers a full suite of map tools including display, geocoding, and routing, and is used in industries such as tourism, real estate, and retail.

Known for its clear and intuitive map design, Mapion supports marker overlays, area highlighting, and multi-stop route optimization. It also provides migration support for companies switching from Google Maps.

The service supports map labels in English, Traditional and Simplified Chinese, and Korean, making it useful for inbound services and multilingual user interfaces.