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GitHub Contribution Chart Generator vs UUID Generator API

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

APIGitHub Contribution Chart GeneratorNEW—UUID Generator APINEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (derived from public GitHub profile data)Unverified
Free tierFree — no keyFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

GitHub Contribution Chart Generator vs UUID Generator API: common questions

Which is more reliable, GitHub Contribution Chart Generator or UUID Generator API?

On our scheduled checks, UUID Generator API leads on measured uptime — GitHub Contribution Chart Generator at —% versus UUID Generator API 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 GitHub Contribution Chart Generator and UUID Generator API need an API key?

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

Can I call GitHub Contribution Chart Generator and UUID Generator API from the browser?

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

Are GitHub Contribution Chart Generator and UUID Generator API free for commercial use?

GitHub Contribution Chart Generator has unclear commercial terms, and UUID Generator 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.