University of Bonn GitLab REST API v4
The University of Bonn self-hosts GitLab at gitlab.uni-bonn.de and its REST API v4 answers anonymous callers over the public project set. Verified live 2026-09-01: GET /api/v4/projects?per_page=1&simple=true returned 200 application/json with x-total 195 across 195 pages and ratelimit-limit 60; a 100-item page returned 97,168 bytes of project metadata. Privileged endpoints are properly closed — /api/v4/metadata and /api/v4/version both return 401 Unauthorized without a token. The GitLab API contract belongs to GitLab; the instance, the projects and the data are Bonn's, so the relationship is recorded and no GitLab specification is saved here.