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Geocoder REST API vs User Agent Lookup API

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

APIGeocoder REST APIHEALTHY90User Agent Lookup APIHEALTHY96
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms739426
P95 · ms1302764
AuthapiKeynone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Geocoder REST API vs User Agent Lookup API: common questions

Which is more reliable, Geocoder REST API or User Agent Lookup API?

Both are neck-and-neck — Geocoder REST API and User Agent Lookup API each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, Geocoder REST API or User Agent Lookup API?

User Agent Lookup API has the lower median latency in our checks — Geocoder REST API responds in 739 ms versus User Agent Lookup API at 426 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 Geocoder REST API and User Agent Lookup API need an API key?

User Agent Lookup API needs no key, while Geocoder REST API requires a free API key. If you want to start calling without signup, reach for User Agent Lookup API first.

Can I call Geocoder REST API and User Agent Lookup API from the browser?

Neither sends browser-friendly CORS headers reliably, so call Geocoder REST API and User Agent Lookup API from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are Geocoder REST API and User Agent Lookup API free for commercial use?

Geocoder REST API has unclear commercial terms, and User Agent Lookup API 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.