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Update tools.mdx with langchain setup instructions #615

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Nov 17, 2025
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Update tools.mdx with langchain setup instructions #615

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15 changes: 15 additions & 0 deletions units/en/unit2/smolagents/tools.mdx
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Expand Up @@ -249,6 +249,21 @@ By using `Tool.from_langchain()`, Alfred effortlessly adds advanced search funct

Here's how he does it:

We first need to install the `langchain` integration for `smolagents`.

```bash
pip install -U langchain-community
```

After installing the langchain integration, make sure to set your SerpAPI key.
This is required for search-based tools such as `SerpAPITool`:

```python
os.environ['SERPAPI_API_KEY'] = '...'
```

You can create a SerpAPI key [here](https://serpapi.com/)

```python
from langchain.agents import load_tools
from smolagents import CodeAgent, InferenceClientModel, Tool
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