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Functions, Tools and Agents with LangChain

The landscape of LLMs and the libraries that support them has evolved rapidly in recent months. This course is designed to keep you ahead of these changes. You’ll explore new advancements like ChatGPT’s function calling capability, and build a conversational agent using a new syntax called LangChain Expression Language (LCEL) for tasks like tagging, extraction, tool selection, and routing. After taking this course, you’ll know how to: - Generate structured output, including function calls, using LLMs; - Use LCEL, which simplifies the customization of chains and agents, to build applications; - Apply function calling to tasks like tagging and data extraction; - Understand tool selection and routing using LangChain tools and LLM function calling – and much more. - Start applying these new capabilities to build and improve your applications today.

Status: LangChain
Status: Application Development
IntermediateProject1 hour

Featured reviews

PD

5.0Reviewed Dec 1, 2024

very clear and useful to follow coding along.. well done

RS

4.0Reviewed Jul 4, 2024

I thought the side by side notebook and lecture concept would fabulously well. Great job!

AD

4.0Reviewed Feb 3, 2025

quite complex for a starting point. It takes way more than an hour to complete. One hour is only for watching the videos.

AM

5.0Reviewed Jan 25, 2025

the the perfect combination of information and a hands-on approach

TT

5.0Reviewed Feb 22, 2025

This course enabled me to build a conversational agent with LangChain. Worth a try!

All reviews

Showing: 20 of 27

Tatiana Maskaron
5.0
Reviewed Aug 9, 2024
Byron Alfaro
5.0
Reviewed Feb 17, 2025
THANUJAN T.
5.0
Reviewed Feb 23, 2025
Alexandru-Atila Morlocan
5.0
Reviewed Jan 26, 2025
paris dettorre
5.0
Reviewed Dec 2, 2024
Sayomphon Khampromma
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Reviewed Jul 4, 2024
Vallian Sayoga
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Reviewed Sep 15, 2025
Douglas Campbell
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Reviewed Dec 2, 2024
fachri husaini
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Reviewed Jul 3, 2024
Mohamed Hameem Sajith J
5.0
Reviewed Apr 11, 2025
Michal Galusza
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Reviewed Dec 22, 2024
Alessio Pepe
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Larissa Vitória Vasconcelos Sousa
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Reviewed Nov 13, 2025
Mohammed Zitani
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Reviewed Apr 30, 2025
raul vigo rivas
5.0
Reviewed Dec 5, 2024
VARSHINI S A
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Reviewed Sep 1, 2024
DHINESH R
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Tushar Prajapati
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Reviewed Dec 23, 2025
Gifty
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Reviewed Apr 18, 2025
Alex Dalentzas
4.0
Reviewed Feb 4, 2025