Quarry vs SafeSelect MCP

In-depth architectural comparison of the Quarry and SafeSelect 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 Quarry 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 Quarry Details

Choose SafeSelect MCP when:

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

Explore SafeSelect MCP Details

Feature & Specification Comparison

Specification	Quarry Databases	SafeSelect MCP Databases
Summary	Safety-railed database access for agents: Postgres, MySQL, Redis. Read-only by default.	Fail-closed, read-only PostgreSQL and MongoDB access for AI agents 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": {
    "quarry": {
      "command": "uvx",
      "args": [
        "quarry-db"
      ]
    }
  }
}

{
  "mcpServers": {
    "safeselect-mcp": {
      "url": "https://antonillos.github.io/safeselect/"
    }
  }
}

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