Serena

An open-source coding-agent toolkit that understands code at the symbol level via language servers — find symbols, references, and edit or refactor precisely instead of relying on line numbers and string matching. It makes AI faster and more reliable in large codebases, a free alternative to Cursor and Windsurf. Runs fully locally.

uvx --from git+https://github.com/oraios/serena serena start-mcp-server