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Crawlee vs Energy-Charts API

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

APICrawleeHEALTHY93Energy-Charts APIHEALTHY81
Uptime · 30d
Uptime · 90d100%99.02%
Uptime · 30d100%98.3%
P50 · ms4801178
P95 · ms12932855
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

Crawlee vs Energy-Charts API: common questions

Which is more reliable, Crawlee or Energy-Charts API?

On our scheduled checks, Crawlee leads on measured uptime — Crawlee at 100% versus Energy-Charts API at 99.02% 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, Crawlee or Energy-Charts API?

Crawlee has the lower median latency in our checks — Crawlee responds in 480 ms versus Energy-Charts API at 1178 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 Crawlee and Energy-Charts API need an API key?

Neither needs a paid key — Crawlee is callable with no signup, and Energy-Charts API is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call Crawlee and Energy-Charts API from the browser?

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

Are Crawlee and Energy-Charts API free for commercial use?

Crawlee has unclear commercial terms, and Energy-Charts 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.