Check if any of the $656M in unclaimed royalties at The MLC is yours
Checks your Spotify catalog against The MLC's database for unclaimed songwriting royalties.
Blackbox Checker takes a Spotify artist, album, or song link and checks each recording against The Mechanical Licensing Collective's database of unmatched and unclaimed mechanical royalties, a pool currently worth $656M. It labels each recording's status — fully claimed, needs matching, missing shares, fully unclaimed, or not in MLC data yet — and estimates the dollar value of your exposure from your Spotify stream count and a mechanical rate it says it measured from actual MLC distributions. It's free with no signup, and frames the payout as time-sensitive: MLC pays out the oldest unmatched months first, and once a month is distributed, that money is gone for good.
What holds up
- +Free, no signup — paste a Spotify link and see your status immediately
- +Explains exactly what each match status means, down to per-service matching quirks
- +Shows a live countdown to the first payout date, so fixing this has a real deadline
Mind the limits
- −Its dollar estimate carries a stated ±35% margin, and its two sizing methods don't reconcile
- −Measured mechanical rate comes out roughly half the MLC's official rate, by its own account
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