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GitHub Project Issues vs GitHub REST API

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

APIGitHub Project IssuesHEALTHY95GitHub REST APIHEALTHY94
Uptime · 30d
Uptime · 90d99.44%99.44%
Uptime · 30d100%100%
P50 · ms326349
P95 · ms15392671
Authnonenone
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

GitHub Project Issues vs GitHub REST API: common questions

Which is more reliable, GitHub Project Issues or GitHub REST API?

Both are neck-and-neck — GitHub Project Issues and GitHub REST API each measure 99.44% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, GitHub Project Issues or GitHub REST API?

GitHub Project Issues has the lower median latency in our checks — GitHub Project Issues responds in 326 ms versus GitHub REST API at 349 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 Project Issues and GitHub REST API need an API key?

Neither needs a paid key — GitHub Project Issues is callable with no signup, and GitHub REST API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call GitHub Project Issues and GitHub REST API from the browser?

Only GitHub REST API is browser-friendly — it returns CORS headers over HTTPS. GitHub Project Issues needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are GitHub Project Issues and GitHub REST API free for commercial use?

GitHub Project Issues has unclear commercial terms, and GitHub REST 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.