Postgres (read Only) vs Mongo MCP

In-depth architectural comparison of the Postgres (read Only) and Mongo 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?

P

Choose Postgres (read Only) 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 Postgres (read Only) Details

Choose Mongo MCP when:

• You need dedicated capabilities in the Databases domain.
• You prefer local stdio subprocess transport architecture.
• Your security boundary fits: other (Free / Open Source).
• Primary tools included: Collection schema inspection, Filtered document queries, Single-document CRUD operations.

Explore Mongo MCP Details

Feature & Specification Comparison

Specification	P Postgres (read Only) Databases	Mongo MCP QuantGeekDev Databases
Summary	Read-only Postgres: drop-in for the archived server-postgres, with schema context.	MongoDB integration that enables LLMs to interact directly with databases.
Category & Scope	Databases	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": {
    "postgres-read-only": {
      "command": "npx",
      "args": [
        "-y",
        "postgres-read-only"
      ]
    }
  }
}

{
  "mcpServers": {
    "quantgeekdev-mongo-mcp": {
      "command": "npx",
      "args": [
        "mongo-mcp"
      ]
    }
  }
}

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