What is Serena?
Serena is a MCP server by oraios that coding agent that uses language servers for symbolic code operations. It is listed under Developer tools and has 30,352 GitHub stars.
| Type | Mcp server |
|---|---|
| Author | oraios |
| Repository | oraios/serena |
| Popularity | 30,352 GitHub stars |
| Category | Developer tools |
| Security | Low risk (84/100) |
| Rank | #27 of 4,418 MCP servers; #14 in Developer tools |
| Last commit | 2026-10-15 |
| Stars this week | +167 |
| Runs | Locally |
| Language | Python |
Is Serena safe to install?
Serena scores 84/100 on the MCPMods security check: Low risk. Things to review: executes code or shell commands. It passed 4 of 6 checks.
MCP server results come from listing signals: who publishes it, where your data goes and what it can do. The code itself is not scanned yet.
| Check | Result |
|---|---|
| Community-built server | Note |
| Runs on your machine only | Pass |
| No credentials mentioned | Pass |
| Read-only by description | Pass |
| Executes code or shell commands | Review |
| Source on GitHub | Pass |
How do I install Serena?
- Find the launch command. The README says how the server starts (npx, uvx, docker or a remote URL) and which API keys it needs.
https://github.com/oraios/serena
- Add it to Claude Code. Replace the part after -- with the command from the README. Remote servers use --transport http with a URL.
claude mcp add serena -- <command from README> claude mcp add --transport http serena <server-url>
- Check it connected. This lists your MCP servers and their status.
claude mcp list
Or ask Claude to set it up
Paste this into Claude Code and it installs Serena for you:
Add the "Serena" MCP server from https://github.com/oraios/serena to Claude Code. Read its README for the launch command and any API keys I need, run claude mcp add, then check that it connects.