shipapis
StarSubmit an APISubmit API

Crates.io vs QuickChart

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

APICrates.ioHEALTHY94QuickChartHEALTHY95
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms279264
P95 · ms11543598
Authnonenone
CORSyesno
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

Crates.io vs QuickChart: common questions

Which is more reliable, Crates.io or QuickChart?

Both are neck-and-neck — Crates.io and QuickChart each measure 100% 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, Crates.io or QuickChart?

QuickChart has the lower median latency in our checks — Crates.io responds in 279 ms versus QuickChart at 264 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 Crates.io and QuickChart need an API key?

Neither needs a paid key — Crates.io is callable with no signup, and QuickChart is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Crates.io and QuickChart from the browser?

Only Crates.io is browser-friendly — it returns CORS headers over HTTPS. QuickChart needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Crates.io and QuickChart free for commercial use?

Crates.io has unclear commercial terms, and QuickChart 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.