MCP Rubber Duck vs MCP Server Chart

A side-by-side comparison of two AI, Data & Knowledge servers — tools, transport, auth, maintenance, and copy-paste config for each.

	MCP Rubber Duck Bridge to query multiple LLMs and CLI coding agents as AI "ducks" for diverse perspectives. Unverified stdio (local) API key TypeScript	MCP Server Chart Generate 26+ chart types and data visualizations using AntV, for chart generation and data analysis. Unverified stdio (local) No auth TypeScript
Category	AI, Data & Knowledge	AI, Data & Knowledge
Language	TypeScript	TypeScript
Transport	stdio (local)	stdio (local)
Auth	API key	None
GitHub stars	168	4.2k
Last commit	3 days ago	1 month ago
Verified
Actively maintained
Install	`npm install -g mcp-rubber-duck`	`npx -y @antv/mcp-server-chart`
Repo	Open	Open

Verdict

Pick MCP Rubber Duck if you prefer its approach (bridge to query multiple llms and cli coding agents as ai "ducks" for diverse perspectives).

Pick MCP Server Chart if you want the official, vendor-maintained server, and you prefer the more popular, battle-tested option.

Add MCP Rubber Duck

Install / run

npm install -g mcp-rubber-duck

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp-rubber-duck": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-rubber-duck"
      ],
      "env": {
        "MCP_SERVER": "true",
        "OPENAI_API_KEY": "sk-your-key-here",
        "DEFAULT_PROVIDER": "openai"
      }
    }
  }
}

Add MCP Server Chart

Install / run

npx -y @antv/mcp-server-chart

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "mcp-server-chart": {
      "command": "npx",
      "args": [
        "-y",
        "@antv/mcp-server-chart"
      ]
    }
  }
}

FAQ

MCP Rubber Duck or MCP Server Chart — which is better?

Pick MCP Rubber Duck if you prefer its approach (bridge to query multiple llms and cli coding agents as ai "ducks" for diverse perspectives). Pick MCP Server Chart if you want the official, vendor-maintained server, and you prefer the more popular, battle-tested option.

Can I use both MCP Rubber Duck and MCP Server Chart?

Yes — MCP clients let you enable multiple servers at once. Add both configs to your client's mcpServers and use whichever tool fits the task.

Do MCP Rubber Duck and MCP Server Chart work with Claude, Cursor and Windsurf?

Both do. Copy the per-client config below into Claude Desktop, Cursor, or Windsurf.

View MCP Rubber Duck →View MCP Server Chart →More comparisons →