DataLink

Name: DataLink
Author: pilat

by pilatversion 1.2.4i★ –iRuns on your computer

Registry nameio.github.pilat/mcp-datalink

Install

Overview

Description from the maker (original English)

MCP server for secure database access (PostgreSQL, MySQL, SQLite)

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Databases & datasets
You need to fill in: DATALINK_ANALYTICS_URL

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: DATALINK_ANALYTICS_URL, DATALINK_ANALYTICS_READONLY

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "datalink": {
      "command": "npx",
      "args": [
        "-y",
        "@pilat/mcp-datalink"
      ],
      "env": {
        "DATALINK_ANALYTICS_URL": "your-value",
        "DATALINK_ANALYTICS_READONLY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add datalink --env DATALINK_ANALYTICS_URL=your-value --env DATALINK_ANALYTICS_READONLY=your-value -- npx -y @pilat/mcp-datalink

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "datalink": {
      "command": "npx",
      "args": [
        "-y",
        "@pilat/mcp-datalink"
      ],
      "env": {
        "DATALINK_ANALYTICS_URL": "your-value",
        "DATALINK_ANALYTICS_READONLY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "datalink": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@pilat/mcp-datalink"
      ],
      "env": {
        "DATALINK_ANALYTICS_URL": "your-value",
        "DATALINK_ANALYTICS_READONLY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

DATALINK_ANALYTICS_URL secret required env
Database connection URL. Pattern: DATALINK_ _URL where identifies the database. Supports postgresql://, mysql://, or file path for SQLite.
DATALINK_ANALYTICS_READONLY env
Set to 'true' for read-only access. Pattern: DATALINK_ _READONLY

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account pilat, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Databases & datasetsi

More stars than 0% of the other 1139 servers in this category
Published to the registry more recently than 3% of the other 1139 servers in this category
Basic checks equal to or better than 100% of the other 1139 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is DataLink safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: DATALINK_ANALYTICS_URL

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.2.4) reached the registry 10 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Supabase, MongoDB MCP Server, Elasticsearch MCP Server

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Supabase

by supabase

Supabase’s official server lets AI create tables, query data and review project settings in your Supabase database.

Computer or cloud★ 2,993Apache-2.0Updated yesterday

Install

MongoDB MCP Server

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Elasticsearch MCP Server

by cr7258

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Runs on your computer★ 315Apache-2.0Updated 14 months ago

Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

@pilat/mcp-datalink

MCP server for PostgreSQL, MySQL, and SQLite. Gives AI assistants secure database access via Model Context Protocol.

npx @pilat/mcp-datalink

Works with Claude Desktop, Claude Code, Cursor, Cline, and any MCP-compatible client.

Installation

Add to your MCP client config file (see config locations below):

"mcpServers": { "datalink": { "command": "npx", "args": ["-y", "@pilat/mcp-datalink"], "env": { "DATALINK_ANALYTICS_URL": "postgresql://user:password@localhost:5432/analytics", "DATALINK_ANALYTICS_READONLY": "true",

"DATALINK_INVENTORY_URL": "mysql://user:password@localhost:3306/inventory",

"DATALINK_CACHE_URL": "sqlite:///path/to/cache.db" } } } }

This creates three database connections: analytics (read-only), inventory, and cache.

Variable	Description
`DATALINK_{NAME}_URL`	Connection URL (creates database named `{name}`)
`DATALINK_{NAME}_READONLY`	Set to `true` to block writes
`DATALINK_{NAME}_MAX_TIMEOUT`	Max query timeout in ms (caps model requests)

Connection URL formats:

# PostgreSQL

postgresql://user:password@localhost:5432/dbname postgresql://user:password@localhost:5432/dbname?sslmode=require

MySQL

mysql://user:password@localhost:3306/dbname mysql://user:password@localhost:3306/dbname?ssl=true

SQLite

sqlite:///path/to/database.db sqlite:///Users/me/data/app.sqlite sqlite://../relative/path/data.db

Environment Variable Substitution

URLs support ${VAR} syntax to reference other environment variables:

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

This allows reusing existing environment variables (like DATABASE_URL from your shell or .env file).

Supported syntax:

Syntax	Description
`${VAR}`	Expands to value of `VAR`, or keeps `${VAR}` if unset
`${VAR:-default}`	Expands to value of `VAR`, or `default` if unset

Examples:

# Reference existing DATABASE_URL

DATALINK_MAIN_URL="${DATABASE_URL}"

Build URL from parts

DATALINK_MAIN_URL="postgresql://${DB_USER}:${DB_PASS}@${DB_HOST}:5432/mydb"

With default values

DATALINK_MAIN_URL="postgresql://localhost:${DB_PORT:-5432}/mydb"

Config File Locations

Client	Config file
Claude Code	`~/.claude.json` (global) or `.mcp.json` (project)
Claude Desktop (macOS)	`~/Library/Application Support/Claude/claude_desktop_config.json`
Claude Desktop (Windows)	`%APPDATA%\Claude\claude_desktop_config.json`
Cursor	`~/.cursor/mcp.json` or Settings → Features → MCP Servers
Cline	`cline_mcp_settings.json` or VS Code settings `cline.mcpServers`

Tools

Tool	Description
`list_databases`	List configured database connections
`list_tables`	List tables with row counts
`describe_table`	Get schema, indexes, foreign keys
`query`	Run SELECT queries
`execute`	Run INSERT/UPDATE/DELETE
`explain`	Show query execution plans

Security

Prepared statements only (no SQL injection)
Single statement per query (no chaining)
DDL blocked (no DROP, ALTER, TRUNCATE)
Readonly mode per connection
Response size limit (100 rows, 64KB default, configurable via DATALINK_MAX_TOTAL_SIZE)
Query timeout: 30s default, model can request up to 10min, MAX_TIMEOUT caps it

License

MIT

DataLink

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Databases & datasetsi

Common questions

Alternatives

Supabase

MongoDB MCP Server

Elasticsearch MCP Server

README from the maker

@pilat/mcp-datalink

Installation

MySQL

SQLite

Environment Variable Substitution

Build URL from parts

With default values

Config File Locations

Tools

Security

License