Claude Desktop/Code MCP Server install。1) Claude Desktop config: ~/Library/Application Support/Claude/claude_desktop_config.json (Mac) or %APPDATA%\Claude\claude_desktop_config.json (Win)・2) JSON edit: { "mcpServers": { "filesystem": { "command": "npx", "args": ["-y", "@modelcontextprotocol/server-filesystem", "/path/to/dir"] } } }・3) Claude Desktop restart→tool icon表示確認・4) Other servers: Github(env GITHUB_PERSONAL_ACCESS_TOKEN)・PostgreSQL(connection string)・Slack(env SLACK_BOT_TOKEN)・Google Drive(OAuth)・5) Claude Code: .claude/settings.json mcpServers同format・6) MCP Inspector debug tool・7) Custom server: FastMCP Python framework・stdio/SSE/HTTP transport・2026年 enterprise MCP server内製拡大、Claude Desktop config標準化。