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Kroki vs WebScraping.AI

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

APIKrokiHEALTHY92WebScraping.AIHEALTHY93
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms633460
P95 · ms31831109
AuthnoneapiKey
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — key may be required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Kroki vs WebScraping.AI: common questions

Which is more reliable, Kroki or WebScraping.AI?

Both are neck-and-neck — Kroki and WebScraping.AI 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, Kroki or WebScraping.AI?

WebScraping.AI has the lower median latency in our checks — Kroki responds in 633 ms versus WebScraping.AI at 460 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 Kroki and WebScraping.AI need an API key?

Kroki needs no key, while WebScraping.AI requires a free API key. If you want to start calling without signup, reach for Kroki first.

Can I call Kroki and WebScraping.AI from the browser?

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

Are Kroki and WebScraping.AI free for commercial use?

Kroki has unclear commercial terms, and WebScraping.AI 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.