LangChain3.1
DirectAgent infrastructure
Co-founder and CEO of LangChain; uses the framework daily. Demos LangChain features as they ship.
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Person profile
Harrison Chase's AI stack.
Co-founder & CEO at LangChain.
Tools Harrison Chase has publicly discussed or demonstrated using. Curated by Magpie's editorial team from podcasts, posts, and public stacks.
Harrison Chase is co-founder and CEO of LangChain. The agent-stack is his job; he posts his own dev workflow on X and the LangChain blog and is one of the most-quoted public voices on how to build production AI systems.
Tools Harrison has publicly discussed.
- LangGraph3.7DirectAgents
LangGraph is the LangChain team's stateful agent framework. Chase demos LangGraph workflows on X and the blog.
- LangSmith3.7DirectAgents
LangSmith is LangChain's observability product. Chase uses it to debug agents and posts traces and screenshots.
- Claude4.7DirectLLM chatbot
Builds against Claude as a primary model in agent workflows. Has discussed Claude's tool-use behaviour on X and in podcast appearances.
- ChatGPT4.9DirectLLM chatbot
Frequent ChatGPT user; has discussed prompt patterns for agent workflows in LangChain blog posts.
Evidence tiers
Direct: a video, podcast, post, or essay where Harrison names the tool. Implied: their company's public stack, repeated adjacency, or job ads. We don't list guesses. See how Magpie scores tools.
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Editorial note
These tools have been mentioned by the people featured in podcasts, interviews, posts, and other public media. Source links and citations are included wherever possible. Magpie AI has no direct relationship with the people on these pages. This is editorial coverage, not an endorsement, sponsorship, or affiliation. Spot a missing tool or a wrong attribution? Suggest a correction →
Photo: X profile