PASAR API

🇯🇵 GSI ~ Japan map tiles, elevation & geocoding

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Official national mapping agency XYZ tiles usable commercially with GSI attribution.

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Call it

curl 'https://cyberjapandata.gsi.go.jp/xyz/std/{z}/{x}/{y}.png'

AI prompt

I'm building an app using a free Japan API (no auth needed).

API: GSI ~ Japan map tiles, elevation & geocoding
Provider: Geospatial Information Authority of Japan (国土地理院)
Endpoint: GET https://cyberjapandata.gsi.go.jp/xyz/std/{z}/{x}/{y}.png
It returns JSON.

Source: Geospatial Information Authority of Japan (国土地理院) (https://maps.gsi.go.jp/development/siyou.html)
Source type: Official open-data catalogue
Endpoint type: Open-data catalogue JSON
Integration difficulty: Copy-paste ready
Last checked: 2026-07-05
Production caveat: Still handle empty rows, schema changes, pagination, stale coverage, and temporary upstream failures.

Help me fetch this and build a simple page that displays it nicely. Include basic production safeguards for errors, empty responses, schema changes, caching, and rate limits.

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