everything vs context-harness

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

	everything by modelcontextprotocol	context-harness by parallax-labs
Stars	★ 85,748	★ 36
30d uses	—	—
Score	77	44
Official	✓	—
Categories	Developer ToolsAI / LLM ToolsOther	Developer ToolsFile SystemAI / LLM ToolsProductivity
Language	TypeScript	Rust
Last commit	this month	3 mo ago

everything · Summary

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

context-harness · Summary

Local-first context ingestion and retrieval framework with SQLite, embeddings, and MCP server for AI tools like Cursor and Claude.

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

context-harness · Use cases

Building personal knowledge bases from local documents and code repositories
Enabling AI assistants to access company documentation via MCP integration
Creating searchable archives of Git repositories with automatic sync

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

context-harness · Install

Installation

**Pre-built binaries** (recommended):

# macOS (Apple Silicon)
curl -L https://github.com/parallax-labs/context-harness/releases/latest/download/ctx-macos-aarch64.tar.gz | tar xz
sudo mv ctx /usr/local/bin/

# Linux (x86_64)
curl -L https://github.com/parallax-labs/context-harness/releases/latest/download/ctx-linux-x86_64.tar.gz | tar xz
sudo mv ctx /usr/local/bin/

**MCP Configuration for Claude Desktop:**

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "context-harness": {
      "url": "http://127.0.0.1:7331/mcp"
    }
  }
}

**Start MCP Server:**

ctx serve mcp

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