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Pendo Feedback API vs PostalCodes

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

APIPendo Feedback APINEW—PostalCodesNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
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

Pendo Feedback API vs PostalCodes: common questions

Which is more reliable, Pendo Feedback API or PostalCodes?

On our scheduled checks, PostalCodes leads on measured uptime — Pendo Feedback API at —% versus PostalCodes at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Pendo Feedback API and PostalCodes need an API key?

PostalCodes needs no key, while Pendo Feedback API requires a free API key. If you want to start calling without signup, reach for PostalCodes first.

Can I call Pendo Feedback API and PostalCodes from the browser?

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

Are Pendo Feedback API and PostalCodes free for commercial use?

Pendo Feedback API has unclear commercial terms, and PostalCodes 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.