Does Claude Code support OAuth for MCP servers?

Yes, Claude Code automatically handles OAuth flows for SSE and HTTP transports, prompting the user for authentication in the browser on first use.

How does Claude Code handle MCP tool naming?

Tools are automatically namespaced using a specific prefix: mcp__plugin_ _ __ to ensure uniqueness across different plugins.

What is the difference between Method 1 and Method 2 configuration?

Method 1 uses a dedicated .mcp.json file for better separation of concerns, while Method 2 embeds configuration directly within plugin.json for simpler, single-server setups.

What is the recommended transport for remote MCP servers?

HTTP (streamable) is the currently recommended transport for remote connections, as SSE is being phased out in favor of more modern HTTP patterns.

Can I use environment variables in my .mcp.json config?

Yes, you can use ${CLAUDE_PLUGIN_ROOT} for directory-relative paths and standard shell variables like ${API_KEY} for sensitive credentials.

MCP Integration for Claude Code

Name: MCP Integration for Claude Code
Author: astrosteveo

byastrosteveo

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API Development

Integrates external services, databases, and APIs into Claude Code plugins using the Model Context Protocol.

This skill provides a comprehensive framework for developers to extend Claude Code's capabilities by connecting it to external data sources and services. It offers standardized guidance on implementing the Model Context Protocol (MCP) across various transports including stdio, HTTP, and WebSockets. By following the patterns in this skill, developers can securely manage authentication via OAuth or tokens, automate tool discovery, and ensure that complex external service capabilities are exposed as intuitive tools within the Claude Code environment.

Key Features

01Support for multiple transport layers including stdio, HTTP, SSE, and WebSocket

02Environment variable expansion for portable and secure configurations

03Structured tool naming conventions to prevent plugin conflicts

04Automatic tool discovery and optimized tool search for large service sets

051 GitHub stars

06Automated OAuth and token-based authentication management

Use Cases

01Developing local helper servers to provide custom filesystem or system-level utilities

02Connecting Claude Code to internal databases like PostgreSQL or MongoDB for data analysis

03Integrating third-party SaaS APIs such as GitHub, Jira, or Asana as actionable tools

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add astrosteveo/marketplace mcp-integration

For use in Claude.ai and ChatGPT

Download Skill