GitHub Contribution Chart Generator vs OpenCorporates

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
AuthnoneapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverified (derived from public GitHub profile data)Unverified
Free tierFree — no keyFree tier — API key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

GitHub Contribution Chart Generator vs OpenCorporates: common questions

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

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

GitHub Contribution Chart Generator needs no key, while OpenCorporates 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 OpenCorporates from the browser?

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

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