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Energy-Charts API vs ModelPartFinder Error Codes

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

APIEnergy-Charts APIHEALTHY81ModelPartFinder Error CodesHEALTHY68
Uptime · 30d
Uptime · 90d99.02%93.1%
Uptime · 30d98.3%98.3%
P50 · ms1178603
P95 · ms28553485
Authnonenone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree — no key
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Energy-Charts API vs ModelPartFinder Error Codes: common questions

Which is more reliable, Energy-Charts API or ModelPartFinder Error Codes?

On our scheduled checks, Energy-Charts API leads on measured uptime — Energy-Charts API at 99.02% versus ModelPartFinder Error Codes at 93.1% 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, Energy-Charts API or ModelPartFinder Error Codes?

ModelPartFinder Error Codes has the lower median latency in our checks — Energy-Charts API responds in 1178 ms versus ModelPartFinder Error Codes at 603 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 Energy-Charts API and ModelPartFinder Error Codes need an API key?

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

Can I call Energy-Charts API and ModelPartFinder Error Codes from the browser?

Yes — both Energy-Charts API and ModelPartFinder Error Codes send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are Energy-Charts API and ModelPartFinder Error Codes free for commercial use?

Energy-Charts API has unclear commercial terms, and ModelPartFinder Error Codes 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.