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API Reference - Ideal Postcodes vs positionstack

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

APIAPI Reference - Ideal PostcodesHEALTHY99positionstackHEALTHY93
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms154455
P95 · ms8313328
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

API Reference - Ideal Postcodes vs positionstack: common questions

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

Both are neck-and-neck — API Reference - Ideal Postcodes and positionstack 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, API Reference - Ideal Postcodes or positionstack?

API Reference - Ideal Postcodes has the lower median latency in our checks — API Reference - Ideal Postcodes responds in 154 ms versus positionstack at 455 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 positionstack need an API key?

API Reference - Ideal Postcodes needs no key, while positionstack requires a free API key. If you want to start calling without signup, reach for API Reference - Ideal Postcodes first.

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

Only API Reference - Ideal Postcodes is browser-friendly — it returns CORS headers over HTTPS. positionstack needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are API Reference - Ideal Postcodes and positionstack free for commercial use?

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