All organizations · GSoC 2026 · Data, Media

MetaBrainz Foundation Inc

Open music / book metadata, music recommendations

The MetaBrainz Foundation is a non-profit that believes in free, open access to data. It has been set up to build community maintained databases and make them available in the public domain or under Creative Commons licenses. Our data is mostly gathered by volunteers and verified by peer review to ensure it is consistent and correct. All non-commercial use of this data is free, but commercial users are asked to support us in order to help fund the project. We encourage all data users to contribute to the data gathering process so that our data can be as comprehensive as possible. With this data we are building a music social network and bias free music recommendations.

  • python
  • machine learning
  • perl
  • postgres
  • spark
  • machine learning
  • open data
  • music
  • books
  • music social network

Project ideas

13 ideas on its 2026 ideas page; of the 12 that state a difficulty: 3 easy, 4 medium, 5 hard. Sizes: 2 small, 6 medium, 3 large. 8 mentors named.

  1. Use Solr search server large hard
  2. Set up BookBrainz for internationalization medium easy
  3. New Calibre plugin medium medium
  4. Showcase MusicBrainz events in ListenBrainz small medium
  5. Playlists sorting and organization medium easy
  6. User onboarding small easy
  7. Integrate Remote Playback and Listening now medium hard
  8. Compose Multiplatform Migration large hard
  9. Modernize search storage format for the MusicBrainz database large medium
  10. Extend the mail service with template API medium medium
  11. Implement a daemon that corrects out-of-sync cover art and event art metadata on archive.org
  12. Metadata recognition from cover art medium hard
  13. Develop a GraphQL server as a MusicBrainz API alternative hard

Read the ideas page. Ideas are for scope reference; never copy one into a proposal.

History

In GSoC since 2016, 11 years. Projects per year: '16: 4, '17: 5, '18: 5, '19: 6, '20: 7, '21: 5, '22: 7, '23: 7, '24: 8, '25: 6, '26: 7.

On GitHub

77 repositories pushed to in the last year. Main languages: Python (29), Jinja (15), Dockerfile (7), JavaScript (3), Shell (3), Go (2).

Links and channels

go deeper in your terminal
git-into-gsoc org "MetaBrainz Foundation Inc" --shortlist
git-into-gsoc repos "MetaBrainz Foundation Inc"
git-into-gsoc issues --org "MetaBrainz Foundation Inc"
or ask your assistant:
"Which MetaBrainz Foundation Inc repositories merge
newcomers' pull requests, and which beginner
issues are still free?"

Those commands read live data: which repositories merge outside pull requests, and which beginner issues nobody has claimed. Install in two minutes.