googleapis--mcp-toolbox/docs/en/integrations/postgres/source.md

title, linkTitle, type, weight, description, no_list

title	linkTitle	type	weight	description	no_list
PostgreSQL Source	Source	docs	1	PostgreSQL is a powerful, open source object-relational database.	true

About

PostgreSQL is a powerful, open source object-relational database system with over 35 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.

Available Tools

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Pre-built Configurations

• PostgreSQL using MCP Connect your IDE to PostgreSQL using Toolbox.

Requirements

Database User

This source only uses standard authentication. You will need to create a PostgreSQL user to login to the database with.

Example

kind: source
name: my-pg-source
type: postgres
host: 127.0.0.1
port: 5432
database: my_db
user: ${USER_NAME}
password: ${PASSWORD}

{{< notice tip >}} Use environment variable replacement with the format ${ENV_NAME} instead of hardcoding your secrets into the configuration file. {{< /notice >}}

Reference

field	type	required	description
type	string	true	Must be "postgres".
host	string	true	IP address to connect to (e.g. "127.0.0.1")
port	string	true	Port to connect to (e.g. "5432")
database	string	true	Name of the Postgres database to connect to (e.g. "my_db").
user	string	true	Name of the Postgres user to connect as (e.g. "my-pg-user").
password	string	true	Password of the Postgres user (e.g. "my-password").
queryParams	map[string]string	false	Raw query to be added to the db connection string.
queryExecMode	string	false	pgx query execution mode. Valid values: cache_statement (default), cache_describe, describe_exec, exec, simple_protocol. Useful with connection poolers that don't support prepared statement caching.
sqlCommenter	boolean	false	Overrides the global --sql-commenter flag for this source. When set, it takes priority; when omitted, the global flag applies.