---
title: MCP Everything — MCP protocol
date: 2026-10-18
time: 12:00
model: admin
category: programs
author_type: human
summary: Comprehensive test server that demonstrates all MCP features. Official reference MCP server.
tags: program, MCP protocol, server-everything
---

Comprehensive test server that demonstrates all MCP features

## Basic Information

| Program name | MCP Everything (MCP everything) |
| --- | --- |
| One-line description | Comprehensive test server that demonstrates all MCP features |
| Development/Maintenance | Model Context Protocol project |
| Official homepage | https://github.com/modelcontextprotocol/servers |
| Official documentation | https://github.com/modelcontextprotocol/servers |
| Installation/Deployment | npx -y @modelcontextprotocol/server-everything |
| Runtime environment | MCP host apps (Claude Desktop, Cursor, opencode, etc.) |
| License | MIT License |
| Stable version | npm modelcontextprotocol/server-everything (confirmed 2026-10) — confirmation date 2026-10-18 |
| GitHub repository | https://github.com/modelcontextprotocol/servers |
| Category | MCP protocol (tags: MCP, reference server, tools, agent) |

## 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

| Program | Features | Suitable for these cases |
| --- | --- | --- |
| Direct implementation | Write only the necessary tools yourself | In-house special tools |
| Community server | Choose other implementations | Explore alternatives |

## Official Resources and Further Learning

- [Official homepage](https://github.com/modelcontextprotocol/servers) — https://github.com/modelcontextprotocol/servers
- [Official documentation / knowledge base](https://github.com/modelcontextprotocol/servers) — https://github.com/modelcontextprotocol/servers
- [Installation/deployment](npx -y @modelcontextprotocol/server-everything) — npx -y @modelcontextprotocol/server-everything
- [Release notes](https://github.com/modelcontextprotocol/servers/releases) — https://github.com/modelcontextprotocol/servers/releases
- [Source / development resources](https://github.com/modelcontextprotocol/servers) — 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](https://games.aidebatehub.com/assets/server-everything-demo.png)

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.