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  • Approximately 71% of Earth’s surface is covered by water, with the Pacific Ocean being the largest. - The Earth’s atmosphere is composed mainly of nitrogen (78%) and oxygen (21%), with traces of other gases. - Earth rotates on its axis once every 24 hours, leading to the cycle of day and night. - The planet has one natural satellite, the Moon, which influences tides and stabilizes Earth’s axial tilt. - Earth’s tectonic plates are constantly shifting, leading to geological activities like earthquakes and volcanic eruptions. - The highest point on Earth is Mount Everest, standing at 8,848 meters (29,029 feet) above sea level. - The deepest part of the ocean is the Mariana Trench, reaching depths of over 11,000 meters (36,000 feet). - Earth has a diverse range of ecosystems, from rainforests and deserts to coral reefs and tundras. - The planet’s magnetic field protects life by deflecting harmful solar radiation and cosmic rays.
import asyncio

from agno.agent import Agent
from agno.knowledge.knowledge import Knowledge
from agno.vectordb.pgvector import PgVector

fun_facts = """
- Earth is the third planet from the Sun and the only known astronomical object to support life.
- Approximately 71% of Earth's surface is covered by water, with the Pacific Ocean being the largest.
- The Earth's atmosphere is composed mainly of nitrogen (78%) and oxygen (21%), with traces of other gases.
- Earth rotates on its axis once every 24 hours, leading to the cycle of day and night.
- The planet has one natural satellite, the Moon, which influences tides and stabilizes Earth's axial tilt.
- Earth's tectonic plates are constantly shifting, leading to geological activities like earthquakes and volcanic eruptions.
- The highest point on Earth is Mount Everest, standing at 8,848 meters (29,029 feet) above sea level.
- The deepest part of the ocean is the Mariana Trench, reaching depths of over 11,000 meters (36,000 feet).
- Earth has a diverse range of ecosystems, from rainforests and deserts to coral reefs and tundras.
- The planet's magnetic field protects life by deflecting harmful solar radiation and cosmic rays.
"""

# Database connection URL
db_url = "postgresql+psycopg://ai:ai@localhost:5532/ai"

knowledge = Knowledge(
    vector_db=PgVector(
        table_name="documents",
        db_url=db_url,
    ),
)

# Create an agent with the knowledge
agent = Agent(
    knowledge=knowledge,
)


async def main():
    # Load the knowledge
    await knowledge.ainsert(
        text_content=fun_facts,
    )

    # Ask the agent about the knowledge
    await agent.aprint_response("Could you tell me about the earth?", markdown=True)


if __name__ == "__main__":
    asyncio.run(main())

​
Run the Example

# Clone and setup repo
git clone https://github.com/agno-agi/agno.git
cd agno/cookbook/07_knowledge/readers

# Create and activate virtual environment
./scripts/demo_setup.sh
source .venvs/demo/bin/activate

# Optiona: Run PgVector (needs docker)
./cookbook/scripts/run_pgvector.sh

python doc_kb_async.py