A peer-reviewed test found 55% of AI-generated academic citations were fabricated outright (18% even on the strongest model). Verify a DOI through CrossRef, an ISBN through Open Library, or search the exact title — then check your whole list at once. Kirla's free citation checker does this with no sign-up, marking anything it can't confirm as 'couldn't verify', never 'fabricated' — all your writing tools in one plan.
Enable JavaScript and visit https://kirlaai.com/check-if-your-sources-are-real to use the tool.