MCP Everything — MCP protocol

Comprehensive test server that demonstrates all MCP features

Basic Information

What is this program?

This server is a comprehensive test server implementation that demonstrates all MCP features included in the official MCP reference server collection. It can be run with a single npx command, and once registered in the MCP host app settings, it can be used immediately by the agent.

Primary use: MCP feature learning and client testing

What problems does it solve?

• ('In everything tasks', 'When the agent needs to use the comprehensive test server functionality that demonstrates all MCP features', 'Connect immediately with standard MCP tools')
• ('Quick connection', 'When you need to run it with npx without building a separate server', 'Reuse the official implementation')
• ('Safe access', 'When you need to access it while limiting the allowed scope', 'Restrict with path and permission parameters')

Key Features

Exposed tools

echo, add, long_running_operation, sample_llm

• Use case: Provides MCP feature learning and client testing to the agent
• Result: Standard MCP tool calls
• Limitations: Be careful with permission settings

Installation and Execution

npx (Run)

Run @modelcontextprotocol/server-everything with npx.

npx -y @modelcontextprotocol/server-everything /path

Real-world Usage Example

Registering with the host

Add a server entry to mcp.json.

{"mcpServers":{"everything":{"command":"npx","args":["-y","@modelcontextprotocol/server-everything","/path"]}}

Advantages and Limitations

Advantages

• Official project implementation
• One-line execution with npx
• Exposes standard MCP tools

Points to consider before use

• Requires host app configuration
• Be careful with permission and path settings

Comparison with Similar Programs

Official Resources and Further Learning

• Official homepage — https://github.com/modelcontextprotocol/servers
• Official documentation / knowledge base — https://github.com/modelcontextprotocol/servers
• Installation/deployment — npx -y @modelcontextprotocol/server-everything
• Release notes — https://github.com/modelcontextprotocol/servers/releases
• Source / development resources — https://github.com/modelcontextprotocol/servers

Version and supported environment information is based on what was confirmed on the official site as of 2026-10-18. Installation commands may vary depending on the distribution and version you use, so also check the official installation documentation.

Actual Execution Screen

Synthetic example — not an actual execution result. The screen is a synthetic example and not an actual execution result.

!MCP Everything usage example

An actual running server

Source (HTML): https://games.aidebatehub.com/programs/mcp/protocol/server-everything.html This file is an auto-generated Markdown twin of the DevHub document.