MCP Language Server vs Serena

A side-by-side comparison of two Developer Tools servers — tools, transport, auth, maintenance, and copy-paste config for each.

	MCP Language Server Gives MCP-enabled clients semantic code tools: definition, references, rename, diagnostics, and more. Unverified stdio (local) No auth Go	Serena LSP-powered coding agent toolkit: semantic symbol search, references and structural edits. Verified stdio (local) No auth Python
Category	Developer Tools	Developer Tools
Language	Go	Python
Transport	stdio (local)	stdio (local)
Auth	None	None
GitHub stars	1.5k	12k
Last commit	3 months ago	15 days ago
Verified
Actively maintained
Install	`go install github.com/isaacphi/mcp-language-server@latest`	`uvx --from git+https://github.com/oraios/serena serena start-mcp-server`
Repo	Open	Open

Verdict

Pick MCP Language Server if you prefer its approach (gives mcp-enabled clients semantic code tools: definition, references, rename, diagnostics, and more).

Pick Serena if you prefer the more popular, battle-tested option, and you need the broadest set of tools.

Add MCP Language Server

Install / run

go install github.com/isaacphi/mcp-language-server@latest

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp-language-server": {
      "command": "mcp-language-server",
      "args": [
        "--workspace",
        "/Users/you/dev/yourproject/",
        "--lsp",
        "gopls"
      ],
      "env": {
        "PATH": "/opt/homebrew/bin:/Users/you/go/bin",
        "GOPATH": "/users/you/go",
        "GOCACHE": "/users/you/Library/Caches/go-build",
        "GOMODCACHE": "/Users/you/go/pkg/mod"
      }
    }
  }
}

Add Serena

Install / run

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

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "serena": {
      "command": "uvx",
      "args": [
        "--from",
        "git+https://github.com/oraios/serena",
        "serena",
        "start-mcp-server"
      ]
    }
  }
}

Requires `uv` (the Python package runner). Install it from https://docs.astral.sh/uv/ if `uvx` is not found.

FAQ

MCP Language Server or Serena — which is better?

Pick MCP Language Server if you prefer its approach (gives mcp-enabled clients semantic code tools: definition, references, rename, diagnostics, and more). Pick Serena if you prefer the more popular, battle-tested option, and you need the broadest set of tools.

Can I use both MCP Language Server and Serena?

Yes — MCP clients let you enable multiple servers at once. Add both configs to your client's mcpServers and use whichever tool fits the task.

Do MCP Language Server and Serena work with Claude, Cursor and Windsurf?

Both do. Copy the per-client config below into Claude Desktop, Cursor, or Windsurf.

View MCP Language Server →View Serena →More comparisons →