Cortex vs everything

Side-by-side comparison to help you pick between these two MCP servers.

	Cortex by cdeust	everything by modelcontextprotocol
Stars	★ 34	★ 85,748
30d uses	—	—
Score	47	77
Official	—	✓
Categories	AI / LLM ToolsDeveloper ToolsKnowledge Graph	Developer ToolsAI / LLM ToolsOther
Language	Python	TypeScript
Last commit	this month	this month

Cortex · Summary

Cortex is a neuroscience-based persistent memory system for Claude Code with 47 MCP tools that remembers context, decisions, and patterns across sessions.

everything · Summary

Official MCP test server exercising all protocol features for client builders.

Cortex · Use cases

Persistent memory for Claude Code that remembers context and decisions across sessions
Retrieval of past debugging sessions and architectural decisions for current problem-solving
Automated documentation generation with scientific writing tools and LaTeX support

everything · Use cases

Testing MCP client implementations against all protocol features
Learning MCP protocol capabilities through a reference server
Validating client compatibility with different transport methods

Cortex · Install

claude plugin marketplace add cdeust/Cortex
claude plugin install cortex

Restart your Claude Code session, then run:

/cortex-setup-project

This handles PostgreSQL + pgvector installation, database creation, embedding model download, cognitive profile building, codebase seeding, conversation import, and hook registration.

Verify setup:

python3 -m mcp_server.doctor

everything · Install

NPX (recommended)

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

On Windows, use cmd /c:

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

Docker

{
  "mcpServers": {
    "everything": {
      "command": "docker",
      "args": ["run", "-i", "--rm", "mcp/everything"]
    }
  }
}

Global install

npm install -g @modelcontextprotocol/server-everything@latest
npx @modelcontextprotocol/server-everything

Comparison generated from public README + GitHub signals. Last updated automatically.