Postgres MCP server: what to know

A Postgres MCP server exposes PostgreSQL as tools through MCP so an agent can query a database. There is no verified official implementation in the MCP project as of 2026-08-22, so evaluate community servers carefully, prefer read-only access, and scope the connected role tightly.

A Postgres MCP server runs against a live database connection and exposes tools that issue queries. Tool names, schemas, and the connection mechanism are implementation-specific.

Inspect the source to see what queries it can run and whether read-only mode exists. Prefer a server you can bound to a narrow schema and a read-only database role.

Use a database role with only the privileges the task needs — SELECT-only for read tasks. Keep credentials out of logs and tool arguments.