CheapShark API vs GitHub Contribution Chart Generator

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

Uptime · 30d
Uptime · 90d99.02%79.4%
Uptime · 30d98.3%85.0%
P50 · ms8044374
P95 · ms24834992
Authnonenone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified (derived from public GitHub profile data)
Free tierFree — limits not publishedFree — no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

CheapShark API vs GitHub Contribution Chart Generator: common questions

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

On our scheduled checks, CheapShark API leads on measured uptime — CheapShark API at 99.02% versus GitHub Contribution Chart Generator at 79.4% 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, CheapShark API or GitHub Contribution Chart Generator?

CheapShark API has the lower median latency in our checks — CheapShark API responds in 804 ms versus GitHub Contribution Chart Generator at 4374 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 CheapShark API and GitHub Contribution Chart Generator need an API key?

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

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

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

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

CheapShark API has unclear commercial terms, and GitHub Contribution Chart Generator 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.