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.jsonWindows
%APPDATA%\Claude\claude_desktop_config.jsonCursor
macOS/Linux
~/.cursor/mcp.jsonWindows
%USERPROFILE%\.cursor\mcp.jsonWindsurf
macOS/Linux
~/.codeium/windsurf/mcp_config.jsonWindows
%USERPROFILE%\.codeium\windsurf\mcp_config.jsonVS Code
macOS/Linux
.vscode/mcp.json or settings.jsonWindows
.vscode\mcp.json or settings.jsonFull setup per client → Client Setup