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Last.fm vs xColors

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

APILast.fmREACHABLE—xColorsNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseLast.fm terms — attribution requiredUnverified
Free tierFree personal API keyFree — limits not published
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Last.fm vs xColors: common questions

Which is more reliable, Last.fm or xColors?

On our scheduled checks, xColors leads on measured uptime — Last.fm at —% versus xColors 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 Last.fm and xColors need an API key?

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

Can I call Last.fm and xColors from the browser?

Yes — both Last.fm and xColors 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 Last.fm and xColors free for commercial use?

Last.fm has unclear commercial terms, and xColors 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.