# Serena MCP

18 Hacker News commenters recommended Serena MCP and 3 criticized it, November 2025 to November 2026. It was recommended in 9 of 13 months. It meets the Hacker Approved badge rule.

**Verdict:** Free open-source MCP server giving coding agents symbol-level search and editing, with less token churn and fewer loops.

## Why people recommend it

- Symbol-level search and editing (5 comments): "it can use code-centred tools like find_symbol, find_referencing_symbols and insert_after_symbol." ([source](https://news.ycombinator.com/item?id=47004137)) "Best methods I’ve observed -progressive loading (claude skills) & symbolic search (serena mcp)" ([source](https://news.ycombinator.com/item?id=46628487)) "Serena is great for semantic code editing and symbol-level retrieval on your own codebase." ([source](https://news.ycombinator.com/item?id=46197293))
- Less token use (3 comments): "Serena is free & open-source, and it already robustly addresses the key issues preventing coding agents from being truly efficient" ([source](https://news.ycombinator.com/item?id=47123712)) "Both semantic search as well as editing. And with way less token churn." ([source](https://news.ycombinator.com/item?id=46998611)) "CC with Serena uses tokens fairly well." ([source](https://news.ycombinator.com/item?id=48260621))
- Helps agents avoid loops (5 comments): "that plus serena mcp to replace all of gemini cli's agent tools actually gets it to work pretty well" ([source](https://news.ycombinator.com/item?id=46699510)) "give it serena and it mostly works, and is less likely to hit a death loop." ([source](https://news.ycombinator.com/item?id=47871231)) "Serena has been doing a not bad job of helping solve this issue" ([source](https://news.ycombinator.com/item?id=46357730))
- Works with many language servers (2 comments): "I use serena as an MCP for all LSPs and it works great." ([source](https://news.ycombinator.com/item?id=49563290)) "It opens up more features than the standard IDEA MCP." ([source](https://news.ycombinator.com/item?id=49248262))

## Alternatives hackers recommend

- [Playwright MCP](https://hackerapproved.com/p/playwright-mcp.md): 40 recommend
- [Context7](https://hackerapproved.com/p/context7.md): 40 recommend
- [Chrome DevTools MCP](https://hackerapproved.com/p/chrome-devtools-mcp.md): 36 recommend
- [Context Mode](https://hackerapproved.com/p/context-mode.md): 16 recommend
- [Figma MCP](https://hackerapproved.com/p/figma-mcp.md): 15 recommend

## Cite as

Hacker Approved, "Serena MCP", https://hackerapproved.com/p/serena/ (counts from 1,795,640 Hacker News comments, November 2025 to November 2026).