What is the key difference between Stdio Proxy and Marrow?

Stdio Proxy belongs to the Knowledge & Memory category with cloud HTTP/SSE execution, while Marrow belongs to the Knowledge & Memory category with cloud HTTP/SSE execution.

How do I install Stdio Proxy or Marrow in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Stdio Proxy and Marrow free or paid?

Stdio Proxy operates under a Free / Open Source model (No auth required). Marrow operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Stdio Proxy lists 0 tools with 0 views and 1 GitHub stars. Marrow lists 0 tools with 0 views and 0 GitHub stars.

Can I use both Stdio Proxy and Marrow together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

How do I install Stdio Proxy or Marrow in Claude Desktop, Cursor, or Windsurf?

Both servers follow the standard Model Context Protocol configuration format. Simply copy the JSON block from the configuration section above and paste it into your AI client's mcpServers configuration object (for instance in claude_desktop_config.json or ~/.cursor/mcp.json ), then completely restart or refresh the application.

Are Stdio Proxy and Marrow free to use, or do they require API keys?

Stdio Proxy is listed under a Free / Open Source model with No auth required . Marrow operates under a Free / Open Source model with No auth required . If environment variables are required (such as API keys), be sure to define them under the env key in your MCP client's configuration file.

Can I run both Stdio Proxy and Marrow at the same time in my AI client?

Yes! MCP clients support multi-server orchestration. You can include both stdio-proxy and marrow as distinct keys inside the single mcpServers object in your configuration file. Your AI assistant will automatically select and call the appropriate tool from either server during chat sessions.

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, Stdio Proxy has a Quality Score of 36 /100 ( Fair ) with 0 views, 0 installs, and 1 GitHub stars. Marrow holds a Quality Score of 41 /100 ( Fair ) with 0 views, 0 installs, and 0 GitHub stars.

Side-by-Side Model Context Protocol Comparison

Stdio Proxy vs Marrow

In-depth architectural comparison of the Stdio Proxy and Marrow MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Stdio Proxy

Knowledge & Memory · Remote HTTP/SSE

Quality: 36/100 (Fair) | Auth: No auth required

Marrow

Knowledge & Memory · Remote HTTP/SSE

Quality: 41/100 (Fair) | Auth: No auth required

Verdict Summary: Choose Stdio Proxy if you need specialized Knowledge & Memory tools running via a hosted cloud SSE transport. Choose Marrow if your workspace requires Knowledge & Memory integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Stdio Proxy when:

You need dedicated capabilities in the Knowledge & Memory domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Stdio Proxy Details

Choose Marrow when:

You need dedicated capabilities in the Knowledge & Memory domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Marrow Details

Feature & Specification Comparison

Specification	S Stdio Proxy Knowledge & Memory	M Marrow Knowledge & Memory
Summary	Undisk MCP: safe file memory for AI agents.	Evidence-grounded, graph-connected, correctable memory for agents.
Category & Scope	Knowledge & Memory	Knowledge & Memory
Quality signal

Tools & Capabilities Breakdown

Stdio Proxy Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Marrow Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Stdio Proxy Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "stdio-proxy": {
      "url": "https://mcp.undisk.app"
    }
  }
}

Marrow Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "marrow": {
      "url": "https://docs.marrow.id/integrations/app-context"
    }
  }
}

Frequently Asked Questions

Stdio Proxy is categorized under Knowledge & Memory and uses a remote streaming HTTP/SSE transport. In contrast, Marrow belongs to Knowledge & Memory using remote streaming HTTP/SSE transport. Select Stdio Proxy when you need capabilities focused on knowledge & memory and Marrow when you require tools for knowledge & memory.

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