YOLP (Yahoo! Open Local Platform) from LY Corporation provides JavaScript and Web APIs for map display, local search, geocoding, routing, and tools such as coordinate conversion and elevation lookup. Developers can start for free with a Yahoo! JAPAN ID. Paid services and internal network use require the YOLP Premier plan.

The platform includes a Weather Information API that returns current and forecast rainfall intensity for a given location, a Content Geocoder that picks out place names from free text, and an In-Building Search API for finding stores and facilities inside specific buildings.