As per comment [1], here is a limited list:
- [ ] https://0xacab.org/api/v4/projects/ (600)
- [ ] https://framagit.org/api/v4/projects/ (8619)
- [ ] https://salsa.debian.org/api/v4/projects/ (25155)
- [ ] https://gitlab.freedesktop.org/api/v4/projects/ (254)
- [ ] https://gitlab.gnome.org/api/v4/projects/ (3247)
- [x] https://gitlab.inria.fr/api/v4/projects/ (1006)
[1] https://forge.softwareheritage.org/T1111#20926