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API Reference - Ideal Postcodes vs IP Data API

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

APIAPI Reference - Ideal PostcodesHEALTHY99IP Data APIHEALTHY96
Uptime · 30d
Uptime · 90d100%99.02%
Uptime · 30d100%100%
P50 · ms154124
P95 · ms8312082
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

API Reference - Ideal Postcodes vs IP Data API: common questions

Which is more reliable, API Reference - Ideal Postcodes or IP Data API?

On our scheduled checks, API Reference - Ideal Postcodes leads on measured uptime — API Reference - Ideal Postcodes at 100% versus IP Data API at 99.02% 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, API Reference - Ideal Postcodes or IP Data API?

IP Data API has the lower median latency in our checks — API Reference - Ideal Postcodes responds in 154 ms versus IP Data API at 124 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 API Reference - Ideal Postcodes and IP Data API need an API key?

Neither needs a paid key — API Reference - Ideal Postcodes is callable with no signup, and IP Data API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call API Reference - Ideal Postcodes and IP Data API from the browser?

Yes — both API Reference - Ideal Postcodes and IP Data API 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 API Reference - Ideal Postcodes and IP Data API free for commercial use?

API Reference - Ideal Postcodes has unclear commercial terms, and IP Data 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.