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

# Postgres Tools

> Inspect and query a Postgres database with PostgresTools, including read-only tool filtering.

```python postgres_tools.py theme={null}
"""
Postgres Tools
=============================

Demonstrates postgres tools.
"""

from agno.agent import Agent
from agno.tools.postgres import PostgresTools

# ---------------------------------------------------------------------------
# Create Agent
# ---------------------------------------------------------------------------


# Example 1: Include specific Postgres functions (default behavior - all functions included)
agent = Agent(
    tools=[
        PostgresTools(
            host="localhost",
            port=5532,
            db_name="ai",
            user="ai",
            password="ai",
            table_schema="ai",
        )
    ]
)

# Example 2: Include only read-only operations
agent_readonly = Agent(
    tools=[
        PostgresTools(
            host="localhost",
            port=5532,
            db_name="ai",
            user="ai",
            password="ai",
            table_schema="ai",
            include_tools=[
                "show_tables",
                "describe_table",
                "summarize_table",
                "inspect_query",
            ],
        )
    ]
)

# Example 3: Exclude dangerous operations
agent_safe = Agent(
    tools=[
        PostgresTools(
            host="localhost",
            port=5532,
            db_name="ai",
            user="ai",
            password="ai",
            table_schema="ai",
            exclude_tools=["run_query"],  # Exclude direct query execution
        )
    ]
)

# ---------------------------------------------------------------------------
# Run Agent
# ---------------------------------------------------------------------------
if __name__ == "__main__":
    agent.print_response(
        "List the tables in the database and summarize one of the tables", markdown=True
    )

    agent.print_response("""
    Please run a SQL query to get all sessions in `agno_sessions` created in the last 24 hours and summarize the table.
    """)
```

## Run the Example

<Snippet file="create-venv-step.mdx" />

**1. Install dependencies**

```bash theme={null}
uv pip install -U agno openai psycopg psycopg-binary
```

**2. Export your OpenAI API key**

```bash Mac/Linux theme={null}
export OPENAI_API_KEY="your_openai_api_key_here"
```

```bash Windows theme={null}
$Env:OPENAI_API_KEY="your_openai_api_key_here"
```

**3. Run the example**

Save the code above as `postgres_tools.py`, then run:

```bash theme={null}
python postgres_tools.py
```

Full source: [cookbook/91\_tools/postgres\_tools.py](https://github.com/agno-agi/agno/blob/v3.0.4/cookbook/91_tools/postgres_tools.py)


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