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OpenMercantil vs LocalGov.jp

Same instrument, two spec sheets — measured, not claimed.

APIOpenMercantilNEW—LocalGov.jpNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedCC BY 4.0 (attribution: "via LocalGov.jp")
Free tierFree — anonymous, no keyFree — all endpoints currently free (per llms.txt)
Rate limit60 req/min, 200 req/day per IP (anonymous)30 req/window · 29 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

OpenMercantil vs LocalGov.jp: common questions

Which is more reliable, OpenMercantil or LocalGov.jp?

On our scheduled checks, LocalGov.jp leads on measured uptime — OpenMercantil at —% versus LocalGov.jp at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do OpenMercantil and LocalGov.jp need an API key?

Neither needs a paid key — OpenMercantil is callable with no signup, and LocalGov.jp is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call OpenMercantil and LocalGov.jp from the browser?

Yes — both OpenMercantil and LocalGov.jp send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are OpenMercantil and LocalGov.jp free for commercial use?

OpenMercantil has unclear commercial terms, and LocalGov.jp allows commercial use on its free tier. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.