LanzouAPI is a single-file PHP script that acts as a parsing proxy for Lanzou (θε₯δΊ) cloud storage share links. It accepts a share URL and optional password, scrapes the Lanzou page, handles anti-scraping challenges (including ESA and acw_sc__v2 cookie generation), and returns a JSON response containing the file name, size, and a direct download URL. Optionally, it can redirect directly to the download. The script includes a local file-based cache with configurable TTL to reduce requests and avoid rate limiting. It also provides a custom suffix replacement feature for download URLs. The codebase is a monolith with no framework, no tests, and no dependency management; all logic resides in a single index.php file. While functional and actively used (as evidenced by the health-check workflow), the architecture is tightly coupled and would require significant refactoring for reuse beyond this specific Lanzou API use case.