DataLink MCP server

DataLink is a small helper that connects your AI assistant to databases like PostgreSQL, MySQL and SQLite. Once it is set up, you can ask your AI questions about your data in plain English and it will look things up for you. It is handy for anyone who has data in a database but does not want to write SQL by hand.

What this MCP server does

You ask your AI something like how many orders came in last week. The AI uses this helper to talk to the database you configured. The helper runs a safe query, gets the rows back, and hands them to the AI. The AI then explains the result to you in the chat, as a summary or a small table. It can also describe what tables exist and what columns they have, so the AI knows what it is working with.

Click to zoom

What you can do with it

• List the databases you have connected
• List tables in a database with their row counts
• Describe a table's columns, indexes and foreign keys
• Run SELECT queries to read data
• Run INSERT, UPDATE and DELETE to change data when allowed
• Show the execution plan for a query so you can see how it runs

Try asking your AI

• “List all the tables in my analytics database with their row counts”
• “Describe the orders table so I can see its columns and keys”
• “How many new customers signed up last month in the inventory database”
• “Show me the ten most recent rows in the events table”

What it gives back to you

You get answers in the chat: lists of tables, descriptions of columns, or rows of data shown as a small table or summary. If you ask it to change something, it tells you what it changed. There is a size limit, so very large results come back trimmed to about 100 rows.

Before you start

Who it's for

Anyone who has data in a database and wants to ask questions about it in plain English, like analysts, ops people and small business owners.