ChartLyrics vs MusicBrainz

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

Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms
P95 · ms
Authnonenone
CORSunknownyes
HTTPSnoyes
Card requirednono
Commercial useunclearyes
Data licenseUnlicensed lyrics dataCore data CC0; some supplementary data CC BY-NC-SA 3.0
Free tierWas: unlimitedFree — no key required
Rate limit~1 request/second per IP; descriptive User-Agent required
In directory since2026-05-022026-07-05
operationalpartialdownno data

ChartLyrics vs MusicBrainz: common questions

Which is more reliable, ChartLyrics or MusicBrainz?

On our scheduled checks, MusicBrainz leads on measured uptime — ChartLyrics at —% versus MusicBrainz 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 MusicBrainz need an API key?

Neither needs a paid key — ChartLyrics is callable with no signup, and MusicBrainz is callable with no signup. Both are quick to prototype with; rate limits still apply.

Can I call ChartLyrics and MusicBrainz from the browser?

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

Are ChartLyrics and MusicBrainz free for commercial use?

ChartLyrics has unclear commercial terms, and MusicBrainz allows commercial use on its free tier. 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.