Dev Tools & GitOfficial referencenpmA · 88

Everything MCP server

MIT

Reference and test server exercising every MCP feature — prompts, resources, tools and sampling. Useful for building your own.

At a glance

Everything is the official MCP reference server in the Dev Tools & Git category. It runs locally over stdio via `npx -y @modelcontextprotocol/server-everything`, and declares no required credentials. It scores A (88/100) on the MCP Skills Hub health score as of Oct 27, 2026.

Source 92k

One-click install

VS Code VS Code Insiders Cursor

Opens your editor and pre-fills the config. Your editor will ask before adding it.

How to install Everything in your AI client

Setup for Claude Code, Claude Desktop, Cursor, Codex, Windsurf, Cline and VS Code — copy-paste ready.

How to install Everything in Claude CodeAnthropic's agentic CLI

Add the server

bash

claude mcp add everything -- npx -y @modelcontextprotocol/server-everything

2
Verify it's connected
bash
```
claude mcp list
```
Sharing it with your team?
Add `--scope project` to write it to .mcp.json in the repository root, which you can commit (with the secrets left as environment variables).
Use it in a session
Ask Claude to use the tools this server exposes. It discovers them automatically.

How to install Everything in Claude DesktopDesktop app (MCP config)

Open your MCP config
macOS: ~/Library/Application Support/Claude/claude_desktop_config.json · Windows: %APPDATA%\Claude\claude_desktop_config.json

Add this server

json

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

Restart Claude Desktop
The tools appear under the 🔌 menu once the app reloads.

How to install Everything in CursorAI-first code editor

Create / edit .cursor/mcp.json in your project

json

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

Enable it
Cursor Settings → MCP → toggle the server on. Tools become available to the Composer/Agent.

How to install Everything in Codex CLIOpenAI coding agent

Add to ~/.codex/config.toml

toml

[mcp_servers.everything]
command = "npx"
args = ["-y", "@modelcontextprotocol/server-everything"]

Run Codex
Codex loads MCP servers from config.toml on startup and exposes their tools to the agent.

How to install Everything in WindsurfCodeium's agentic IDE

Edit ~/.codeium/windsurf/mcp_config.json

json

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

Reload
Windsurf → Cascade → refresh MCP servers. Cascade can now call the tools.

How to install Everything in ClineVS Code autonomous agent

Open Cline → MCP Servers → Configure
Adds to cline_mcp_settings.json.

Add the server

json

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

How to install Everything in VS CodeCopilot / MCP support

Create .vscode/mcp.json

json

{
  "servers": {
    "everything": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-everything"
      ]
    }
  }
}

Start it
VS Code shows a ▶ Start action above the server entry. Agent mode (Copilot Chat) can then use the tools.

What tools does Everything expose?

This server runs as a local package. We only query remote servers for their tool list — asking this one would mean executing it, so its tools are listed in the documentation below.

What the code can do

Read from the published package source — never executed. Parsed 48 of 48 source files.

This server can read and write files, make network requests and read your environment variables.

How it was published

Published by a verified CI identity (github trusted publishing) rather than a personal token.
Has a provenance attestation tying this artifact to the commit it was built from.
6 npm maintainers · last published by GitHub Actions.

Maintainer of this package and think something here is wrong? Tell us and we'll correct it.

Before you install

Signals gathered from the source repo and package registry — not a safety verdict.

What it can reach

Runs code on your machine — Executes as a local process with your user's permissions, including filesystem access.
Downloads at launch — The package is fetched from its registry each run unless you pin a version.

Last commit today — Actively maintained.
92k GitHub stars — Community adoption signal.
211k weekly downloads — Regularly installed by other developers.

Client compatibility

Claude Code: NativeClaude Desktop: NativeCursor: NativeCodex CLI: NativeWindsurf: NativeCline: NativeVS Code: Native

Health score

A · 88

Maintenance, adoption, transparency and packaging — not a safety audit. How this is calculated

Maintenance30%100%
Last commit 0 days ago.
Adoption20%100%
91630 stars, 210517 weekly downloads.
Transparency20%75%
3/4: ✓ public source repo, ✓ declared license, ✓ documentation, ✗ discoverable tool list.
Provenance15%100%
Official reference implementation, maintained by the MCP steering group.
Packaging15%50%
No pinned version — installs resolve to whatever is latest at launch.

Documentation

Full README

Everything MCP Server

This MCP server attempts to exercise all the features of the MCP protocol. It is not intended to be a useful server, but rather a test server for builders of MCP clients. It implements prompts, tools, resources, sampling, and more to showcase MCP capabilities.

Tools, Resources, Prompts, and Other Features

A complete list of the registered MCP primitives and other protocol features demonstrated can be found in the Server Features document.

Protocol versions

The server serves both protocol eras, over stdio and Streamable HTTP, from one process:

2026-07-28 clients connect with server/discover, send their protocol version, identity and capabilities with each request, and have no session. The server demonstrates the revision's new features for them: multi-round-trip requests (input_required) with requestState, subscriptions/listen change notifications, per-request log levels, cache hints (ttlMs / cacheScope), the tasks extension (io.modelcontextprotocol/tasks) under the extensions capability, and x-mcp-header with JSON Schema 2020-12 tool schemas.
2025-era clients connect with the initialize handshake, as before. Elicitation, sampling and roots are served to them from the same multi-round-trip handlers through the SDK's legacy shim.

Roots, sampling and logging are deprecated as of 2026-07-28 and stay available, labelled deprecated. Server Features marks which era each feature belongs to.

Requirements

Node.js 24 or later, when the server runs through npx or from source.

Usage with Claude Desktop (uses stdio Transport)

Add to your claude_desktop_config.json:

json

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

Alternatives to Everything

Maintain Everything? Add a badge to your README

Shows its health grade, and links readers to install steps for every client.

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[![Everything on MCP Skills Hub](https://mcp-skills-hub.vercel.app/badge/official-everything)](https://mcp-skills-hub.vercel.app/mcps/official-everything)

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