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OpenPLZ API vs Pendo Feedback API

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

APIOpenPLZ APIHEALTHY94Pendo Feedback APIDYING67
Uptime · 30d
Uptime · 90d99.02%53.9%
Uptime · 30d98.3%21.7%
P50 · ms561517
P95 · ms903812
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

OpenPLZ API vs Pendo Feedback API: common questions

Which is more reliable, OpenPLZ API or Pendo Feedback API?

On our scheduled checks, OpenPLZ API leads on measured uptime — OpenPLZ API at 99.02% versus Pendo Feedback API at 53.9% 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, OpenPLZ API or Pendo Feedback API?

Pendo Feedback API has the lower median latency in our checks — OpenPLZ API responds in 561 ms versus Pendo Feedback API at 517 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 OpenPLZ API and Pendo Feedback API need an API key?

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

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

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

Are OpenPLZ API and Pendo Feedback API free for commercial use?

OpenPLZ API has unclear commercial terms, and Pendo Feedback 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.