MCP Server Motherduck vs Spark SQL

In-depth architectural comparison of the MCP Server Motherduck and Spark SQL 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 Motherduck 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: execute_query, list_databases, list_tables.

Explore MCP Server Motherduck Details

Choose Spark SQL 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: list_databases, list_tables, describe_table.

Explore Spark SQL Details

Feature & Specification Comparison

Specification	MCP Server Motherduck Databases	Spark SQL Databases
Summary	Fast analytics and data processing with DuckDB and MotherDuck	Query Spark SQL clusters via Thrift/HiveServer2. Works with Spark, EMR, Hive, Impala.
Category & Scope	Databases	Databases
Quality signal

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": {
    "mcp-server-motherduck": {
      "command": "uvx",
      "args": [
        "mcp-server-motherduck"
      ]
    }
  }
}

{
  "mcpServers": {
    "spark-sql": {
      "command": "uvx",
      "args": [
        "spark-sql-mcp-server"
      ]
    }
  }
}

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