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jobdata API vs Namedays Calendar

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

APIjobdata APIHEALTHY92Namedays CalendarHEALTHY89
Uptime · 30d
Uptime · 90d100%92.1%
Uptime · 30d100%98.3%
P50 · ms236536
P95 · ms14032749
AuthapiKeynone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree — limits not published
Rate limitUnpublished60 req/window · 58 remaining
In directory since2026-07-052026-07-05
operationalpartialdownno data

jobdata API vs Namedays Calendar: common questions

Which is more reliable, jobdata API or Namedays Calendar?

On our scheduled checks, jobdata API leads on measured uptime — jobdata API at 100% versus Namedays Calendar at 92.1% 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, jobdata API or Namedays Calendar?

jobdata API has the lower median latency in our checks — jobdata API responds in 236 ms versus Namedays Calendar at 536 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 jobdata API and Namedays Calendar need an API key?

Namedays Calendar needs no key, while jobdata API requires a free API key. If you want to start calling without signup, reach for Namedays Calendar first.

Can I call jobdata API and Namedays Calendar from the browser?

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

Are jobdata API and Namedays Calendar free for commercial use?

jobdata API has unclear commercial terms, and Namedays Calendar 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.