Paste a Spotify link and it turns a catalog into a cleanup list with statuses like Needs matching, Missing shares, and Missing work. That breakdown matters because each one needs a different follow up. I'd spell out The Mechanical Licensing Collective sooner near the search box.
Doubly Blackbox Checker
Find your unclaimed MLC royalties from your Spotify recordings
5 ratings3.81
Saves77
CategoryFinance
PlatformWeb
PricingFree
A free online tool that allows musicians and songwriters to check which of their recordings are unregistered or unclaimed at The Mechanical Licensing Collective (The MLC), estimating potential unclaimed mechanical royalties held in the black box. Users can paste a Spotify link or search by name to identify missing claims and understand their status to help recover royalties.
music
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CategoryFinance
PlatformsWeb
PricingFree
AccountNot confirmed
ListedAugust 2026
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Checked Oct 24, 2026
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- Performance
- 62 out of 100, Needs improvement
- Accessibility
- 100 out of 100, Good
- Best Practices
- 100 out of 100, Good
- SEO
- 100 out of 100, Good
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