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Code

cookbook/models/anthropic/web_fetch.py
from agno.agent import Agent
from agno.models.anthropic import Claude

agent = Agent(
    model=Claude(
        id="claude-opus-4-1-20250805",
        default_headers={"anthropic-beta": "web-fetch-2025-09-10"},
    ),
    tools=[
        {
            "type": "web_fetch_20250910",
            "name": "web_fetch",
            "max_uses": 5,
        }
    ],
    markdown=True,
)

agent.print_response(
    "Tell me more about https://en.wikipedia.org/wiki/Glacier_National_Park_(U.S.)",
    stream=True,
)

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Usage

1

Create a virtual environment

Open the Terminal and create a python virtual environment.
python3 -m venv .venv
source .venv/bin/activate
2

Set your API key

export ANTHROPIC_API_KEY=xxx
3

Install libraries

pip install -U anthropic agno
4

Run Agent

python cookbook/models/anthropic/web_fetch.py