# Chains Projects at AI Tinkerers

> Canonical HTML: https://aitinkerers.org/technologies/chains
> Markdown URL: https://aitinkerers.org/technologies/chains.md
> Technology record last updated: 2026-02-26T13:22:46Z
> Generated: 2026-09-22T02:43:21Z

LangChain is the open-source orchestration framework for building reliable, data-aware applications powered by large language models (LLMs).

LangChain is the essential framework for engineering sophisticated LLM applications, available in both Python and JavaScript libraries. It simplifies development by providing a modular structure to 'chain' together components: models (like OpenAI or Anthropic), data sources (via vector databases like Milvus), and computational tools. This abstraction allows developers to quickly build complex systems like Retrieval-Augmented Generation (RAG) pipelines, intelligent chatbots, and autonomous AI agents. Launched by Harrison Chase in October 2022, the framework accelerates the move from prototype to production, offering a consistent interface for integrating LLMs with external data and computation for real-world utility.

- Official technology site: https://www.langchain.com/
- Public AI Tinkerers demos and talks: 1
- Result page: 1 of 1

## Recent Public Talks and Demos

### [Meal Planner](https://hamburg.aitinkerers.org/talks/rsvp_fTftzEHFUN8)

Currently trying to make a meal planner for myself by using langgraph and a combination of ai agents and chains. At the time of writing I am able to complete a short onboarding in a chat where the user is asked about preferences, dislikes and allergies etc. Those infos being extracted are then used to generate a meal plan for the next 7 days. I already have some recipes being retrieved but I want to build it further to have some sort of long term memory where you can give feedback why you don't want a recipe that was planned for you. That information should then be used to get a different recipe as well as commiting that information to long term memory. E.g. there is a recipe with avocado and you don't like avocoado - you also did not mention it before in the onboarding because you simply didn't think about it. Saying you want a different recipe because you don't like avocado.

- Event context: AI Tinkerers Hamburg - September 12 — 2024-09-12 — Hamburg
- Public talk page: https://hamburg.aitinkerers.org/talks/rsvp_fTftzEHFUN8

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