MCP Server Duckdb vs Skysql MCP

In-depth architectural comparison of the MCP Server Duckdb and Skysql MCP 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.

Which MCP Server Should You Choose?

Choose MCP Server Duckdb when:

• You need dedicated capabilities in the Databases domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: No auth required (Free / Open Source).
• Primary tools included: query, Input, Output.

Explore MCP Server Duckdb Details

Choose Skysql MCP when:

• You need dedicated capabilities in the Databases domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: API Key required (BYOK (Pay Provider Direct)).
• You have access to required keys: SKYSQL_API_KEY.
• Primary tools included: Serverless MariaDB instance management, SQL execution on SkySQL (MySQL/MariaDB) instances, AI-powered database agent interaction.

Feature & Specification Comparison

Specification	MCP Server Duckdb ktanaka101 Databases	Skysql MCP skysqlinc Databases
Summary	DuckDB database integration with schema inspection and query capabilities	Serverless MariaDB Cloud DB MCP server. Tools to launch, delete, execute SQL and work with DB level AI agents for accurate text-2-sql and conversations.
Category & Scope	Databases

Tools & Capabilities Breakdown

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).

{
  "mcpServers": {
    "ktanaka101-mcp-server-duckdb": {
      "command": "npx",
      "args": [
        "-y",
        "ktanaka101-mcp-server-duckdb"
      ]
    }
  }
}

{
  "mcpServers": {
    "skysqlinc-skysql-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "skysqlinc-skysql-mcp"
      ],
      "env": {
        "SKYSQL_API_KEY": "YOUR_SKYSQL_API_KEY_HERE"
      }
    }
  }
}

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