> ## Documentation Index
> Fetch the complete documentation index at: https://agno-v2-docs-scavio-google-v2.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Postgres for Agent

> Store agent sessions and history in PostgreSQL with PostgresDb.

`PostgresDb` stores an Agent's sessions and run history in PostgreSQL.

## Usage

Install dependencies:

```shell theme={null}
uv pip install agno openai ddgs sqlalchemy "psycopg[binary]"
```

Export your OpenAI API key:

```shell theme={null}
export OPENAI_API_KEY="your_openai_api_key_here"
```

### Run PostgreSQL

Install [Docker Desktop](https://docs.docker.com/get-started/get-docker/), then start PostgreSQL with pgvector on port `5532`:

```bash theme={null}
docker run -d \
  -e POSTGRES_DB=ai \
  -e POSTGRES_USER=ai \
  -e POSTGRES_PASSWORD=ai \
  -e PGDATA=/var/lib/postgresql \
  -v pgvolume:/var/lib/postgresql \
  -p 5532:5432 \
  --name pgvector \
  agnohq/pgvector:18
```

```python postgres_for_agent.py theme={null}
from agno.agent import Agent
from agno.db.postgres import PostgresDb
from agno.tools.websearch import WebSearchTools

db_url = "postgresql+psycopg://ai:ai@localhost:5532/ai"

db = PostgresDb(db_url=db_url)

agent = Agent(
    db=db,
    tools=[WebSearchTools()],
    add_history_to_context=True,
)
agent.print_response("How many people live in Canada?")
agent.print_response("What is their national anthem called?")
```

## Parameters

<Snippet file="db-postgres-params.mdx" />