Free Public APIs API vs GitHub Contribution Chart Generator

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

Uptime · 30d
Uptime · 90d100%79.4%
Uptime · 30d100%85.0%
P50 · ms8784374
P95 · ms24194992
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (derived from public GitHub profile data)
Free tierFree — limits not publishedFree — no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Free Public APIs API vs GitHub Contribution Chart Generator: common questions

Which is more reliable, Free Public APIs API or GitHub Contribution Chart Generator?

On our scheduled checks, Free Public APIs API leads on measured uptime — Free Public APIs API at 100% versus GitHub Contribution Chart Generator at 79.4% 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, Free Public APIs API or GitHub Contribution Chart Generator?

Free Public APIs API has the lower median latency in our checks — Free Public APIs API responds in 878 ms versus GitHub Contribution Chart Generator at 4374 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 Free Public APIs API and GitHub Contribution Chart Generator need an API key?

Neither needs a paid key — Free Public APIs API is callable with no signup, and GitHub Contribution Chart Generator is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Free Public APIs API and GitHub Contribution Chart Generator from the browser?

Only Free Public APIs API is browser-friendly — it returns CORS headers over HTTPS. GitHub Contribution Chart Generator needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Free Public APIs API and GitHub Contribution Chart Generator free for commercial use?

Free Public APIs API has unclear commercial terms, and GitHub Contribution Chart Generator 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.