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GitHub Contribution Chart Generator vs GLEIF LEI API

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

APIGitHub Contribution Chart GeneratorHEALTHY68GLEIF LEI APIHEALTHY65
Uptime · 30d
Uptime · 90d79.4%100%
Uptime · 30d85.0%100%
P50 · ms43741052
P95 · ms49922472
Authnonenone
CORSnoyes
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 GLEIF LEI API: common questions

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

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

GLEIF LEI API has the lower median latency in our checks — GitHub Contribution Chart Generator responds in 4374 ms versus GLEIF LEI API at 1052 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 GitHub Contribution Chart Generator and GLEIF LEI API need an API key?

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

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

Only GLEIF LEI 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 GitHub Contribution Chart Generator and GLEIF LEI API free for commercial use?

GitHub Contribution Chart Generator has unclear commercial terms, and GLEIF LEI 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.