MCP Language Server
This is an MCP server that runs and exposes a language server to LLMs. Not a language server for MCP, whatever that would be.
Demo
mcp-language-server helps MCP enabled clients navigate codebases more easily by giving them access semantic tools like get definition, references, rename, and diagnostics.
Setup
- Install Go: Follow instructions at https://golang.org/doc/install
- Install or update this server:
go install github.com/isaacphi/mcp-language-server@latest - Install a language server: follow one of the guides below
- Configure your MCP client: follow one of the guides below
Go (gopls)
Install gopls: go install golang.org/x/tools/gopls@latest
Configure your MCP client: This will be different but similar for each client. For Claude Desktop, add the following to ~/Library/Application\ Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"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"
}
}
}
}
