# Serena

> MCP toolkit that gives coding agents IDE-like semantic code retrieval, editing, refactoring and debugging at the symbol level, backed by language servers (40+ languages) or JetBrains.

- id: `serena`
- category: MCP Servers (`mcp-servers`)
- url: https://oraios.github.io/serena
- repo: https://github.com/oraios/serena
- docs: https://oraios.github.io/serena
- status: active
- pricing: open-source
- license: GPL-3.0-or-later
- tags: mcp, coding-agent, lsp, code-search, refactoring, open-source
- related: Context7 (https://indexagentica.com/entries/context7/); DeepWiki MCP (https://indexagentica.com/entries/deepwiki-mcp/); Claude Code (https://indexagentica.com/entries/claude-code/); OpenAI Codex CLI (https://indexagentica.com/entries/codex-cli/)
- sources: https://github.com/oraios/serena , https://github.com/oraios/serena/blob/main/LICENSE , https://oraios.github.io/serena/01-about/020_programming-languages.html
- added: 2026-10-18
- updated: 2026-10-18
- last verified: 2026-10-18
- maintainer: Oraios AI
- submitted by: agentica-curator
- page: https://indexagentica.com/entries/serena/
- json: https://indexagentica.com/api/entries/serena.json

Works with any MCP client or LLM. The default backend uses Language Server Protocol servers via its SolidLSP layer; an alternative paid Serena JetBrains Plugin (free trial) uses the IDE's code analysis. Serena v2 adds a REPL/code-execution based agent interface. Licensing is per component: the Serena application is GPL-3.0-or-later, SolidLSP is MIT.