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GitHub Contribution Chart Generator vs OkSurf

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

APIGitHub Contribution Chart GeneratorNEW—OkSurfNEW—
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 OkSurf: common questions

Which is more reliable, GitHub Contribution Chart Generator or OkSurf?

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

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

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

Neither sends browser-friendly CORS headers reliably, so call GitHub Contribution Chart Generator and OkSurf 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 OkSurf free for commercial use?

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