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OpenCaged Geocoder (Open Source option) vs Open Library

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

APIOpenCaged Geocoder (Open Source option)ON SCHEDULE—Open LibraryHEALTHY—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedMixed — mostly open
Free tierFree tier — API key requiredUnlimited within courtesy limits
Rate limitUnpublishedSoft — identified UA appreciated
In directory since2026-07-052026-05-02
operationalpartialdownno data

OpenCaged Geocoder (Open Source option) vs Open Library: common questions

Which is more reliable, OpenCaged Geocoder (Open Source option) or Open Library?

Only Open Library is on our probe schedule so far (—% uptime over 90 days). The other is catalogued but not yet live-checked, so we can't compare measured reliability head-to-head — check the uncovered API's own status page for now.

Do OpenCaged Geocoder (Open Source option) and Open Library need an API key?

Open Library needs no key, while OpenCaged Geocoder (Open Source option) requires a free API key. If you want to start calling without signup, reach for Open Library first.

Can I call OpenCaged Geocoder (Open Source option) and Open Library from the browser?

Yes — both OpenCaged Geocoder (Open Source option) and Open Library 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 OpenCaged Geocoder (Open Source option) and Open Library free for commercial use?

OpenCaged Geocoder (Open Source option) has unclear commercial terms, and Open Library has unclear commercial terms. 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.