MCP Server Troubleshooting

Two categories cover 95% of setup issues. Expand the one that matches your symptom.

Config file locations

Claude Desktop

macOS/Linux~/Library/Application Support/Claude/claude_desktop_config.json
Windows%APPDATA%\Claude\claude_desktop_config.json

Cursor

macOS/Linux~/.cursor/mcp.json
Windows%USERPROFILE%\.cursor\mcp.json

Windsurf

macOS/Linux~/.codeium/windsurf/mcp_config.json
Windows%USERPROFILE%\.codeium\windsurf\mcp_config.json

VS Code

macOS/Linux.vscode/mcp.json or settings.json
Windows.vscode\mcp.json or settings.json

Full setup per client → Client Setup

Still stuck?

Common questions