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Abstract API vs Image-Charts

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

APIAbstract APIHEALTHY89Image-ChartsHEALTHY99
Uptime · 30d
Uptime · 90d99.02%99.02%
Uptime · 30d98.3%98.3%
P50 · ms70080
P95 · ms1656499
AuthapiKeynone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key may be required for productionFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Abstract API vs Image-Charts: common questions

Which is more reliable, Abstract API or Image-Charts?

Both are neck-and-neck — Abstract API and Image-Charts each measure 99.02% 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, Abstract API or Image-Charts?

Image-Charts has the lower median latency in our checks — Abstract API responds in 700 ms versus Image-Charts at 80 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 Abstract API and Image-Charts need an API key?

Image-Charts needs no key, while Abstract API requires a free API key. If you want to start calling without signup, reach for Image-Charts first.

Can I call Abstract API and Image-Charts from the browser?

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

Are Abstract API and Image-Charts free for commercial use?

Abstract API has unclear commercial terms, and Image-Charts 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.