DBHub (Postgres) for databases
DBHub is the maintained replacement for the archived reference Postgres server, and it is our second pick of three for database work. Give it a DSN and it runs transaction-aware SQL and explores schema progressively, across Postgres and four other engines, which makes it a dependable general-purpose database connection for an agent.
It lands second rather than first because the leading pick here serves a more complete project surface, but for anyone who just wants an agent that can read and reason over a real database, DBHub is the direct path. It is also the natural choice when you run more than one engine and want one server rather than several.
How DBHub (Postgres) fits
The server has two tools and they map cleanly onto database work. search_objects walks schemas, tables, columns, indexes, and procedures with progressive disclosure, so the agent can answer questions about structure or find the right table before querying. execute_sql then runs the SQL with transaction support and safety controls, which is what makes it safe to let the agent explore, especially with a read-scoped connection.
The honest comparison: Supabase, the first pick, is the stronger fit when your database lives inside a Supabase project and you want the agent to reach Auth, storage, and the rest alongside the tables. Context7 is not a database server at all; it sits in this list because it feeds the agent version-accurate documentation, so the SQL and ORM code it writes matches the real API instead of a guess. DBHub is the pick when the job is direct querying and schema introspection against a Postgres (or MySQL, or other) database, and Context7 complements it rather than competing.
Tools you would use
| Tool | What it does |
|---|---|
| execute_sql | Executes SQL queries with transaction support and safety controls. |
| search_objects | Searches and explores schemas, tables, columns, indexes, and procedures with progressive disclosure. |
FAQ
- Is DBHub a drop-in for the old reference Postgres MCP server?
- It is the maintained replacement for that archived server. You point it at a database with a DSN, and it gives an agent execute_sql for transaction-aware queries and search_objects for progressive schema exploration, across Postgres and four other engines.
- Why is Context7 listed next to a database server?
- Context7 is not a database tool; it supplies version-accurate documentation. Paired with DBHub, it helps the agent write correct SQL and ORM code against the real API rather than guessing, which is why it rounds out a database setup.