If you want the full version and license for commercial use,
you can purchase here :

https://staircaselab.com/product/saint-marseille/

File include : 

1. Saint Marseille.otf
2. Saint Marseille.ttf
3. Saint Marseille.woff
4. Saint Marseille Italic.otf
5. Saint Marseille Italic.ttf
6. Saint Marseille Italic.woff