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Postal Code API
Mapbox Vector Tile specification
vector tiles how-to
Custom tag <tile> in Riot
A static tile server on GitHub Pages
JSON API for JIS X 0402, Identification code for cities, towns and villages (市区町村コード).
JSON API for JIS X 0401, Prefecture Idetification Code (都道府県コード).
Global Map Japan Administrative Boundary (CC-BY 4.0)
GeoJSON from GSI.MUNI_ARRAY
human-readable view for layers4.txt - disaster-response layers from GSI
[wip] GeoJSON API for JIS X 0410
[wip] what is madefor made for?