Liberapay is a recurring-donation platform run as a French non-profit association, legally founded in 2015 and registered under RNA W144000981 with a postal address in Querrien, Brittany. It exists to let people fund the work of others continuously rather than in one-off bursts, and its centre of gravity is free software and open knowledge: maintainers, translators, documentation writers and similar. The platform itself is open source under AGPL, the association is run by volunteers, and the whole thing is deliberately small.
Its defining property is that Liberapay takes no cut of donations at all. The association is funded by donations to its own Liberapay account, the same mechanism it offers everyone else, so donors pay only the payment processor's fees. There are no membership tiers, no gated posts, no shop and no rewards: it is a pledge pipe, not a publishing platform, which is why several of the capability rows below are empty. The interface has been community-translated into around thirty languages, and the API and codebase are public.
For a sovereignty audit Liberapay is a study in the gap between governance and infrastructure. The governance is as European as this category gets: a French association, no investors, no company, no acquisition risk. The infrastructure is not. Liberapay's own legal page states that the site is hosted on AWS (Ireland) and names both Amazon Web Services, Inc. in Seattle and Amazon Data Services Ireland Ltd in Dublin, so records sit in Ireland under an American operator, and Cloudflare sits in front of the site. Payments go through Stripe and PayPal only, both US-incorporated, a fact the project sets out plainly on its own payment-processors page rather than hiding: Material. That page is the single best piece of disclosure in this category and is also the clearest illustration of the category's central problem. As a volunteer association Liberapay signs no commercial DPA. Best fit: open-source and free-knowledge projects for whom a zero-commission, non-profit, auditable platform outweighs the American plumbing underneath.