R3 vs StackQL MCP Server

In-depth architectural comparison of the R3 and StackQL MCP Server 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?

R

Choose R3 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).

Explore R3 Details

Choose StackQL MCP Server 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).

Explore StackQL MCP Server Details

Feature & Specification Comparison

Specification	R R3 Databases	StackQL MCP Server Databases
Summary	Local Redis memory MCP for AI apps with hybrid caching and optional Mem0 cloud backup.	SQL-native query and provisioning engine for cloud infrastructure, served over MCP.
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": {
    "r3-2": {
      "command": "npx",
      "args": [
        "-y",
        "r3-2"
      ]
    }
  }
}

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

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