Database MCP servers

SQL, warehouses and anything you query.

Database MCP servers let an assistant query your data directly instead of guessing at it. You ask a question in English, the server exposes the schema and a query tool, and the model writes the SQL — against your actual tables, with your actual column names, rather than a schema it has imagined.

The useful ones do two things beyond running a query: they let the agent inspect the schema first, and they constrain what it is allowed to run. Schema inspection is what turns a plausible query into a correct one. The constraint is what keeps an exploratory question from becoming an incident.

This is also the category where read-only is not a limitation but the point. Most analytical work — 'how many accounts signed up last week and never came back' — needs no write access at all, and a read-only connection makes the whole class of destructive accidents impossible rather than merely unlikely.

Database MCP servers in this directory

What people build with database MCP servers

Ad-hoc analysis without writing SQL

Ask the question in plain language and get the query, the result and an explanation of what the join actually did — useful when the schema is someone else's work.

Understanding an unfamiliar schema

Point an agent at a database you inherited and ask it to describe the tables, the relationships and which ones are actually being written to.

Checking data during development

Confirm a migration landed, look at what a broken row actually contains, or verify a fixture — without opening another client.

Debugging a cache

Key-value servers let an agent scan the keyspace and inspect TTLs, which turns 'the cache is stale' into a specific key and a specific expiry.

Choosing a database MCP server

  • Match the server to your engine. A Postgres server and a SQLite server look similar from the outside, but they speak to different drivers and expose different introspection.
  • Prefer a server that supports a read-only connection string, and use one. Connect as a role with SELECT and nothing else; the agent cannot drop a table it has no grant on.
  • Look for schema inspection in the tool list. Without it the model is writing SQL from a guess, and the first three queries will be spent discovering the column names.
  • Consider a read replica for anything production-shaped. An agent exploring a question can issue an expensive query without meaning to, and a replica absorbs that where your primary should not.

Before you connect one

Never point one of these at a production primary with a write-capable role. Create a dedicated read-only user, restrict it to the schemas the agent needs, and treat the connection string as a secret in your client config rather than something pasted into a chat.

Frequently asked questions

Can an MCP server delete my data?

Only if the database credential you gave it has permission to. The server inherits the rights of the connection string, so a role granted SELECT only can read and nothing else. This is the single most effective control in this category.

Does the model see all of my data?

It sees what the queries return. Rows come back into the conversation as tool output, so treat a database server the way you would treat exporting a result set: fine for a development database, and a decision worth making deliberately for anything containing personal data.

Which database MCP server works with my ORM?

All of them, because none of them go through it. These servers connect at the database level, so your application's ORM, migrations and models are irrelevant to whether one works.

Can I connect to a hosted database?

Yes. Anything reachable with a standard connection string works, including managed Postgres, hosted Redis and cloud SQLite replicas. Allow the connecting machine through the provider's network rules first.

Install any of these

Every server on this page carries a one-line install command on its own listing. Paste it into your client config and restart — the database tools appear in your next session.

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