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ChartLyrics vs Sunor

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

APIChartLyricsDEAD0SunorNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSunknownno
HTTPSnoyes
Card requirednono
Commercial useunclearunclear
Data licenseUnlicensed lyrics dataUnverified
Free tierWas: unlimitedFree tier — API key required
Rate limit—Unpublished
In directory since2026-05-022026-07-05
operationalpartialdownno data

ChartLyrics vs Sunor: common questions

Which is more reliable, ChartLyrics or Sunor?

On our scheduled checks, Sunor leads on measured uptime — ChartLyrics at —% versus Sunor at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do ChartLyrics and Sunor need an API key?

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

Can I call ChartLyrics and Sunor from the browser?

Neither sends browser-friendly CORS headers reliably, so call ChartLyrics and Sunor from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are ChartLyrics and Sunor free for commercial use?

ChartLyrics has unclear commercial terms, and Sunor 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.