Local-first MCP server for semantic C# analysis & refactoring via Roslyn & MSBuildWorkspace.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add roslyn -- dnx Darylmcd.RoslynMcp --yes~/.codex/config.toml
[mcp_servers.roslyn]
command = "dnx"
args = ["Darylmcd.RoslynMcp", "--yes"]
# codex mcp add roslyn -- dnx Darylmcd.RoslynMcp --yes~/.cursor/mcp.json
{
"mcpServers": {
"roslyn": {
"command": "dnx",
"args": [
"Darylmcd.RoslynMcp",
"--yes"
]
}
}
}.vscode/mcp.json
{
"servers": {
"roslyn": {
"type": "stdio",
"command": "dnx",
"args": [
"Darylmcd.RoslynMcp",
"--yes"
]
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"roslyn": {
"command": "dnx",
"args": [
"Darylmcd.RoslynMcp",
"--yes"
]
}
}
}claude_desktop_config.json
{
"mcpServers": {
"roslyn": {
"command": "dnx",
"args": [
"Darylmcd.RoslynMcp",
"--yes"
]
}
}
}.trae/mcp.json
{
"mcpServers": {
"roslyn": {
"command": "dnx",
"args": [
"Darylmcd.RoslynMcp",
"--yes"
]
}
}
}