How does Claude Code handle MCP server authentication?

It supports automated OAuth flows for SSE servers and environment variable expansion for token-based or local server authentication, ensuring credentials are never hardcoded.

What is the benefit of using .mcp.json over inline configuration?

Using a dedicated .mcp.json file provides a clear separation of concerns, making it easier to maintain multiple servers and keep configurations organized outside the main plugin file.

Can I use multiple MCP servers in a single Claude Code plugin?

Yes, you can define multiple servers within the configuration to allow Claude access to tools from different services and transport types simultaneously.

How do I debug my MCP server integration?

You can use the 'claude --debug' command to view detailed connection logs and tool discovery attempts, or run the '/mcp' command to verify registered tools.

What are the security best practices for MCP tools?

Always use HTTPS/WSS for remote connections, avoid hardcoding tokens, and use specific pre-allowed tool lists in command frontmatter instead of wildcards.

MCP Integration

Name: MCP Integration
Author: iButters

byiButters

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API Development

Integrates external services and APIs into Claude Code plugins using the Model Context Protocol for enhanced tool access.

This skill provides a comprehensive framework for developers to extend Claude Code's capabilities by connecting it to external services via the Model Context Protocol (MCP). It guides users through configuring various server types—including stdio, SSE, HTTP, and WebSocket—to expose external tools, handle authentication flows like OAuth, and manage the lifecycle of connected services. By following the patterns and best practices outlined in this skill, developers can build robust, tool-equipped plugins that allow Claude to interact securely and efficiently with databases, cloud APIs, and local systems.

Key Features

01Native lifecycle management for automatic startup and tool discovery

02Flexible configuration options via dedicated .mcp.json files or inline plugin definitions

03Standardized tool naming and pre-approval patterns to ensure secure execution

041 GitHub stars

05Support for multiple MCP transport types including stdio, SSE, HTTP, and WebSocket

06Automated environment variable expansion for secure and portable credential management

Use Cases

01Connecting Claude Code to local databases for real-time schema analysis and data querying

02Integrating third-party cloud services like Asana or GitHub via SSE for seamless project management

03Building custom internal API wrappers that allow Claude to perform complex business logic via tool calls

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add ibutters/claudecodeplugins mcp-integration

For use in Claude.ai and ChatGPT

Download Skill