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Simkl vs Songsterr

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

APISimklNEW—SongsterrNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
Authnonenone
CORSyesno
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseSimkl terms — user-contributed dataUnverified
Free tierFree read routes; client_id for searchFree — limits not published
Rate limit1 req/s documentedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Simkl vs Songsterr: common questions

Which is more reliable, Simkl or Songsterr?

On our scheduled checks, Songsterr leads on measured uptime — Simkl at —% versus Songsterr 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 Simkl and Songsterr need an API key?

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

Can I call Simkl and Songsterr from the browser?

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

Are Simkl and Songsterr free for commercial use?

Simkl has unclear commercial terms, and Songsterr 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.