Tool Use

Call web search tools from Claude in sync, streaming, and async modes.

Anthropic retired the source's dated Sonnet 4 and Opus 4 models on June 15, 2026. Before running your saved copy, replace claude-sonnet-4-20250514 or claude-opus-4-20250514 with the active claude-sonnet-4-6 model. See model lifecycle status.

tool_use.py
"""Run `uv pip install ddgs` to install dependencies."""

import asyncio

from agno.agent import Agent
from agno.models.anthropic import Claude
from agno.tools.websearch import WebSearchTools

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

agent = Agent(
    model=Claude(id="claude-sonnet-4-20250514"),
    tools=[WebSearchTools()],
    markdown=True,
)

# ---------------------------------------------------------------------------
# Run Agent
# ---------------------------------------------------------------------------
if __name__ == "__main__":
    # --- Sync ---
    agent.print_response("Whats happening in France?")

    # --- Sync + Streaming ---
    agent.print_response("Whats happening in France?", stream=True)

    # --- Async + Streaming ---
    asyncio.run(agent.aprint_response("Whats happening in France?", stream=True))

Run the Example

Set up your virtual environment

uv venv --python 3.12
source .venv/bin/activate

Install dependencies

uv pip install -U agno anthropic ddgs

Export your Anthropic API key

export ANTHROPIC_API_KEY="your_anthropic_api_key_here"

Run the example

Save the code above as tool_use.py. Replace the source model ID claude-sonnet-4-20250514 with claude-sonnet-4-6, then run:

python tool_use.py

Full source: cookbook/90_models/anthropic/tool_use.py