dataset string | computed_at timestamp[s] | algorithm_version string | count int64 | scored int64 | mean float64 | hist dict | extra dict | attribution string | fetched_at timestamp[s] | content_hash string | dataset_version string | provenance dict | source_url string | license string |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
jp_poi_quality | 2026-10-13T08:50:28 | 1.0 | 200,000 | 200,000 | 84.9 | {
"0": 0,
"20": 0,
"40": 1,
"60": 126765,
"85": 73234
} | {
"limit": 200000
} | Source: koteihi-lab Japan Data Foundry, derived from OpenPOI. Licenses: CDLA-Permissive-2.0, Apache-2.0, CC0-1.0, CC BY 2.0/4.0, PDL-1.0. See https://japan-places.local-connect-design.trade/attribution | 2026-10-27T00:00:00 | 17b845cea568c6b2 | 1.0 | {
"source_url": "https://www.e-stat.go.jp/",
"license": "Government Standard License 2.0",
"fetched_at": "2026-10-27T00:00:00",
"content_hash": "07176ded37e32ecd67ad0dab727881c0a873a639f3f837eb8b963c5cd5d78469"
} | https://www.e-stat.go.jp/ | Government Standard License 2.0 |
Japan Places — free municipality + geocode-quality sample
A free sample of the two CC BY 4.0 datasets of the Japan Places API, extracted from the live free endpoints on 2026-11-09. It is the same data the API serves for free — published here so you can inspect the shape and quality before calling the API.
Files
municipality.csv— 1,837 rows: every municipality in 46 of Japan's 47 prefectures (the free API currently returns no payload for Fukushima). Columns:prefecture_code,prefecture_name,code,name,population,corporation_count,poi_count.quality.json— the geocode quality score distribution (0–100) for the POI corpus, exactly as served by the free endpoint.
Provenance (as stated in the API payload)
population— e-Stat census （国勢調査）, aggregated per municipality.corporation_count— gBizINFO totals distributed across municipalities by population share. It is an allocation, not a per-municipality registry count — do not cite it as one.poi_count— OpenPOI corpus.
Attribution: Source: koteihi-lab Japan Data Foundry, derived from OpenPOI. Licenses: CDLA-Permissive-2.0, Apache-2.0, CC0-1.0, CC BY 2.0/4.0, PDL-1.0. See https://koteihi-lab.local-connect-design.trade/attribution.html
The full service
This sample is the top of the chain — the paid datasets (station catchments, chain-store index, aliveness, land price, and 13 live signals such as JEPX energy prices, subsidy award rates, grant deadlines and gBizINFO search) are served by the same API:
- API hub, pricing and RapidAPI subscription plans: https://japan-places.local-connect-design.trade
- OpenAPI spec (20 paths): https://japan-places.local-connect-design.trade/api/v1/openapi
- MCP server (16 tools, hosted): https://japan-places.local-connect-design.trade/mcp
- Postman collection (public workspace): https://www.postman.com/regbase-198277/regbase/collection/665pb5a/japan-places-api
Free endpoints need no key and stay CC BY 4.0. Paid endpoints answer HTTP 402 (x402 micropayments in USDC on Base — no account needed) or open with a RapidAPI Premium Datasets plan.
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