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GitHub Contribution Chart Generator vs The Guardian

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

APIGitHub Contribution Chart GeneratorNEW—The GuardianNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (derived from public GitHub profile data)Unverified
Free tierFree — no keyFree developer key — registration required
Rate limitUnpublished5000 calls/day (developer tier)
In directory since2026-07-052026-07-05
operationalpartialdownno data

GitHub Contribution Chart Generator vs The Guardian: common questions

Which is more reliable, GitHub Contribution Chart Generator or The Guardian?

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

GitHub Contribution Chart Generator needs no key, while The Guardian requires a free API key. If you want to start calling without signup, reach for GitHub Contribution Chart Generator first.

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

Only The Guardian 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 GitHub Contribution Chart Generator and The Guardian free for commercial use?

GitHub Contribution Chart Generator has unclear commercial terms, and The Guardian 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.