LangChain Creator Profile

Stop Endless Back-and-Forth — Add Model Call Limits in LangChainJS

LangChain November 18, 2025

Is your support agent getting stuck in endless back-and-forth conversations? Users asking the same thing three different ways? Or long …

LangChain Academy New Course: LangSmith Essentials

LangChain November 13, 2025

Testing applications is essential to the development lifecycle, but LLM systems are non-deterministic – you can’t always predict how they …

To-Do List Middleware (Python)

LangChain November 13, 2025

Learn about how to use LangChain's to-do list middleware to equip agents with task planning and tracking capabilities for complex …

Why Most AI Agents Fail — and How a Simple Todo List Fixes It

LangChain November 13, 2025

Most AI agents don’t fail because the model is bad — they fail because they don’t plan. In this video, …

Execute code with sandboxes for Deep Agents

LangChain November 13, 2025

We're excited to launch Sandboxes for DeepAgents, a new set of integrations that allow you to safely execute arbitrary code …

Add a Human-in-the-Loop to Your LangChain Agent (Next.js + TypeScript Tutorial)

LangChain November 12, 2025

Bring humans back into the loop 👩‍💻 — this tutorial shows how to integrate Human-in-the-Loop (HITL) middleware into your LangChainJS …

Tool Call Limit Middleware (Python)

LangChain November 12, 2025

Learn about how to use LangChain's tool call limit middleware to control an agent's tool calling abilities across single interactions …

How Agents Use Context Engineering

LangChain November 12, 2025

This video covers the core principles of context engineering for AI agents and how they're implemented across popular frameworks like …

Building a Typescript deep research agent

LangChain November 6, 2025

In this video, we will walk through how to easily build a Typescript deep research agent This builds upon our …

Build a Streaming LangChain Agent in Next.js with useStream

LangChain November 6, 2025

Learn how to build a minimal LangChain agent inside a Next.js app using the useStream hook. We’ll stream responses, render …

Human in the Loop Middleware (Python)

LangChain November 4, 2025

Learn about how to use LangChain's human in the loop middleware to approve, edit, and reject tool calls before they're …

Why We Built LangSmith for Improving Agent Quality

LangChain November 4, 2025

Harrison Chase (CEO of LangChain) sits down with Bagatur (LangSmith Engineer) and Tanushree (Product Manager) for a technical roundtable on …

Deep Agent CLI: Coding Assistant with Memory

LangChain October 31, 2025

Using the deepagents package, we built a simple coding CLI as an example of a coding application you could build …

Inside LangSmith's No Code Agent Builder

LangChain October 30, 2025

Harrison Chase (CEO of LangChain) sits down with Brace (Applied AI) and Sam (PM) for a technical roundtable on LangChain's …

Get Started with LangSmith Agent Builder

LangChain October 29, 2025

LangSmith Agent Builder (now in private preview) lets anyone create agents through a text-to-agent experience — no coding or prompt …

LangChain Academy New Course: LangGraph Essentials

LangChain October 27, 2025

In our newest LangChain Academy course, LangGraph Essentials, you can learn the basics of LangGraph in less than an hour …

LangChain Academy New Course: LangChain Essentials

LangChain October 27, 2025

In our newest LangChain Academy course, LangChain Essentials, you can learn the basics of LangChain in less than an hour …

Get Started with LangSmith Multi-turn Evaluations

LangChain October 23, 2025

Once you have a good sense of the top usage patterns your agent is handling, you can start to drill …

Building LangChain and LangGraph 1.0

LangChain October 22, 2025

LangChain CEO Harrison Chase sits down with open source engineers Sydney, Hunter, and Will for an in-depth technical discussion on …

LangChain: Engineer reliable agents

LangChain October 21, 2025

We're launching LangChain 1.0 and LangGraph 1.0 — and announcing our $125M Series B. Building reliable agents has traditionally been …

Get Started with Insights Agent in LangSmith

LangChain October 20, 2025

Today's popular agents produce millions of traces per day—soon to be billions. These traces contain valuable signal about an agent's …

Context Engineering for AI Agents with LangChain and Manus

LangChain October 14, 2025

Join us for a deep dive into context engineering – the critical practice that determines how well your AI agents …

How We Built it: Clay - Fireside Chat with CEO Kareem Amin

LangChain October 8, 2025

Go behind the scenes with Kareem Amin (CEO of Clay) and Julia Schottenstein (Head of GTM and OPS at LangChain) …

Getting Started with LangSmith (3/8): Debugging with Studio

LangChain September 29, 2025

- Code: https://github.com/xuro-langchain/eli5 - Learn more about LangSmith: https://www.langchain.com/langsmith/?utm_medium=social&utm_source=youtube&utm_campaign=q2-2025_onboarding-videos_co - Get started with LangSmith for free: https://smith.langchain.com/?utm_medium=social&utm_source=youtube&utm_campaign=q2-2025_onboarding-videos_co - Docs: https://docs.smith.langchain.com/?utm_medium=social&utm_source=youtube&utm_campaign=q2-2025_onboarding-videos_co …

LangChain

Stop Endless Back-and-Forth — Add Model Call Limits in LangChainJS

LangChain Academy New Course: LangSmith Essentials

To-Do List Middleware (Python)

Why Most AI Agents Fail — and How a Simple Todo List Fixes It

Execute code with sandboxes for Deep Agents

Add a Human-in-the-Loop to Your LangChain Agent (Next.js + TypeScript Tutorial)

Tool Call Limit Middleware (Python)

How Agents Use Context Engineering

Building a Typescript deep research agent

Build a Streaming LangChain Agent in Next.js with useStream

Human in the Loop Middleware (Python)

Why We Built LangSmith for Improving Agent Quality

Deep Agent CLI: Coding Assistant with Memory

Inside LangSmith's No Code Agent Builder

Get Started with LangSmith Agent Builder

LangChain Academy New Course: LangGraph Essentials

LangChain Academy New Course: LangChain Essentials

Get Started with LangSmith Multi-turn Evaluations

Building LangChain and LangGraph 1.0

LangChain: Engineer reliable agents

Get Started with Insights Agent in LangSmith

Context Engineering for AI Agents with LangChain and Manus

How We Built it: Clay - Fireside Chat with CEO Kareem Amin

Getting Started with LangSmith (3/8): Debugging with Studio

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