DataMCP — Secure MCP Gateway for PostgreSQL vs Legion MCP

In-depth architectural comparison of the DataMCP — Secure MCP Gateway for PostgreSQL and Legion 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?

D

Choose DataMCP — Secure MCP Gateway for PostgreSQL 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 DataMCP — Secure MCP Gateway for PostgreSQL Details

Choose Legion 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).
• You have access to required keys: DB_TYPE, DB_CONFIG, DB_CONFIGS.
• Primary tools included: execute_query, execute_query_json, get_table_columns.

Explore Legion MCP Details

Feature & Specification Comparison

Specification	D DataMCP — Secure MCP Gateway for PostgreSQL Databases	Legion MCP TheRaLabs Databases
Summary	Connect AI tools to your PostgreSQL with permissions, encryption, and audit trails.	Universal database MCP server supporting multiple database types including PostgreSQL, Redshift, CockroachDB, MySQL, RDS MySQL, Microsoft SQL Server, BigQuery, Oracle DB, and SQLite.
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": {
    "datamcp-secure-mcp-gateway-for-postgresql": {
      "command": "npx",
      "args": [
        "-y",
        "datamcp-secure-mcp-gateway-for-postgresql"
      ]
    }
  }
}

{
  "mcpServers": {
    "theralabs-legion-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/inspector"
      ],
      "env": {
        "DB_TYPE": "YOUR_DB_TYPE_HERE",
        "DB_CONFIG": "YOUR_DB_CONFIG_HERE",
        "DB_CONFIGS": "YOUR_DB_CONFIGS_HERE"
      }
    }
  }
}

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