What is the key difference between Postgres MCP and MCP Datalink?

Postgres MCP belongs to the Databases category with local stdio execution, while MCP Datalink belongs to the Databases category with local stdio execution.

How do I install Postgres MCP or MCP Datalink in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Postgres MCP and MCP Datalink free or paid?

Postgres MCP operates under a Free / Open Source model (API Key required). MCP Datalink operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

Postgres MCP lists 15 tools with 3 views and 10 GitHub stars. MCP Datalink lists 6 tools with 1 views and 4 GitHub stars.

Can I use both Postgres MCP and MCP Datalink together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Postgres MCP vs MCP Datalink

In-depth architectural comparison of the Postgres MCP and MCP Datalink 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.

At a Glance & Executive Verdict

Postgres MCP

Databases · Local stdio

Quality: 64/100 (Good) | Auth: API Key required

MCP Datalink

Databases · Local stdio

Quality: 60/100 (Good) | Auth: No auth required

Verdict Summary: Choose Postgres MCP if you need specialized Databases tools running via a local process. Choose MCP Datalink if your workspace requires Databases integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Postgres MCP when:

You need dedicated capabilities in the Databases domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Free / Open Source).
You have access to required keys: POSTGRES_HOST, POSTGRES_PORT, POSTGRES_USER, POSTGRES_PASSWORD, POSTGRES_DB, POSTGRES_SSLMODE, ALLOW_WRITE_OPERATIONS, QUERY_TIMEOUT.
Primary tools included: query, execute, explain_query.

Explore Postgres MCP Details

Choose MCP Datalink 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.

Feature & Specification Comparison

Specification	Postgres MCP JaviMaligno Databases	MCP Datalink pilat Databases
Summary	PostgreSQL MCP server with 14 tools for querying, schema exploration, and table analysis. Features security-first design with SQL injection prevention and read-only by default.	MCP server for secure database access (PostgreSQL, MySQL, SQLite) with parameterized queries and schema inspection
Category & Scope	Databases

Tools & Capabilities Breakdown

Postgres MCP Tools (15)

query

Execute read-only SQL queries against the database

execute

Execute write operations (INSERT/UPDATE/DELETE) when enabled

explain_query

Get EXPLAIN plan for query optimization

list_schemas

List all schemas in the database

list_tables

List tables in a specific schema

describe_table

Get table structure (columns, types, constraints)

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).

Postgres MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "javimaligno-postgres-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "npx"
      ],
      "env": {
        "POSTGRES_HOST": "YOUR_POSTGRES_HOST_HERE",
        "POSTGRES_PORT": "YOUR_POSTGRES_PORT_HERE",
        "POSTGRES_USER": "YOUR_POSTGRES_USER_HERE",
        "POSTGRES_PASSWORD": "YOUR_POSTGRES_PASSWORD_HERE",
        "POSTGRES_DB": "YOUR_POSTGRES_DB_HERE",
        "POSTGRES_SSLMODE": "YOUR_POSTGRES_SSLMODE_HERE",
        "ALLOW_WRITE_OPERATIONS": "YOUR_ALLOW_WRITE_OPERATIONS_HERE",
        "QUERY_TIMEOUT": "YOUR_QUERY_TIMEOUT_HERE"
      }
    }
  }
}

MCP Datalink Configuration

mcpServers (Claude Desktop / Cursor)

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

Frequently Asked Questions

Postgres MCP is categorized under Databases and uses a local stdio subprocess. In contrast, MCP Datalink belongs to Databases using local stdio subprocess. Select Postgres MCP when you need capabilities focused on databases and MCP Datalink when you require tools for databases.

More alternatives to Postgres MCP More alternatives to MCP Datalink Databases category hub