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Open Library vs OpenCaged Geocoder (Open Source option)

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

APIOpen LibraryHEALTHY73OpenCaged Geocoder (Open Source option)REACHABLE100
Uptime · 30d
Uptime · 90d88.2%100%
Uptime · 30d81.7%100%
P50 · ms1629519
P95 · ms48781010
AuthnoneapiKey
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseMixed — mostly openUnverified
Free tierUnlimited within courtesy limitsFree tier — API key required
Rate limitSoft — identified UA appreciatedUnpublished
In directory since2026-05-022026-07-05
operationalpartialdownno data

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

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

On our scheduled checks, OpenCaged Geocoder (Open Source option) leads on measured uptime — Open Library at 88.2% versus OpenCaged Geocoder (Open Source option) at 100% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

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

OpenCaged Geocoder (Open Source option) has the lower median latency in our checks — Open Library responds in 1629 ms versus OpenCaged Geocoder (Open Source option) at 519 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.

Do Open Library and OpenCaged Geocoder (Open Source option) 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 Open Library and OpenCaged Geocoder (Open Source option) from the browser?

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

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