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Streaming Typed Agent Messages in LangChain and React

Streaming Typed Agent Messages in LangChain and React

LangChain January 13, 2026
Most “streaming” agent UIs are built around token streams. That works — until you try to build a real UI. …
 
LangSmith Agent Builder: On the street in San Francisco

LangSmith Agent Builder: On the street in San Francisco

LangChain January 13, 2026
Join Brace as he finds VCs in South Park, San Francisco and shows them how to build agents to solve …
 
How Cursor Builds the Future of AI Coding Tools

How Cursor Builds the Future of AI Coding Tools

LangChain January 8, 2026
Harrison Chase and Cursor's Jason Ginsberg discuss the evolution of coding agents, from tab completion to agentic workflows. Learn how …
 
Ralph Mode for Deep Agents: Running an Agent Forever

Ralph Mode for Deep Agents: Running an Agent Forever

LangChain January 7, 2026
🫡 Ralph Mode for Deep Agents 🫡 What if you could give an AI agent a task and just let …
 
Learning Skills with Deepagents

Learning Skills with Deepagents

LangChain December 23, 2025
The biggest gap between AI agents and human intelligence is the ability to learn. There are various emerging approaches to …
 
Tracing Claude Code to LangSmith

Tracing Claude Code to LangSmith

LangChain December 19, 2025
Curious what Claude Code is doing behind the scenes? Or want observability into critical workflows that you’ve set up with …
 
Approaches for Managing Agent Memory

Approaches for Managing Agent Memory

LangChain December 18, 2025
Humans refine their skills and learn preferences through experience. But many AI agents lack this capacity for continual learning. Here, …
 
LangChain Academy New Course: Introduction to LangChain - Python

LangChain Academy New Course: Introduction to LangChain - Python

LangChain December 18, 2025
Learn how to build with LangChain – our open source framework that makes it easy to start building agents with …
 
Build an MCP Agent with Claude: Dynamic Tool Discovery Across Cloudflare MCP Servers

Build an MCP Agent with Claude: Dynamic Tool Discovery Across Cloudflare MCP Servers

LangChain December 18, 2025
In this video, Christian Bromann build and demo an agent that uses LLM provider native tools—specifically Anthropic Claude’s built-in MCP …
 
The agent development loop with LangSmith + Claude Code / Deepagents

The agent development loop with LangSmith + Claude Code / Deepagents

LangChain December 17, 2025
LangSmith provides a system of record for traces, which can include long agent trajectories. Code agents like Claude Code or …
 
I Let an AI Control My Browser to Play Tic-Tac-Toe - LangChainJS Tutorials

I Let an AI Control My Browser to Play Tic-Tac-Toe - LangChainJS Tutorials

LangChain December 16, 2025
What if an AI could **actually use the browser** — not through brittle scripts, but by *seeing* the UI and …
 
Building & Observing a Deep Agent for Email Triage with LangSmith

Building & Observing a Deep Agent for Email Triage with LangSmith

LangChain December 15, 2025
In this video, we walk through how to build and observe a deep agent using LangSmith. We’ll build a simple …
 
Observing & Evaluating Deep Agents Webinar with LangChain

Observing & Evaluating Deep Agents Webinar with LangChain

LangChain December 12, 2025
Explore the unique challenges of observing and evaluating Deep Agents in production. Deep Agents represent a shift in how AI …
 
Trace OpenRouter Calls to LangSmith — No Code Changes Needed

Trace OpenRouter Calls to LangSmith — No Code Changes Needed

LangChain December 11, 2025
OpenRouter's new Broadcast feature lets you send all your traces directly to LangSmith with no code changes required — whether …
 
LangSmith Fetch: CLI tool to debug agents from your terminal

LangSmith Fetch: CLI tool to debug agents from your terminal

LangChain December 10, 2025
Learn how to debug agents from your terminal using LangSmith Fetch, the new CLI that brings LangSmith trace data directly …
 
Polly: The AI Assistant for AI Engineering in LangSmith

Polly: The AI Assistant for AI Engineering in LangSmith

LangChain December 10, 2025
See how Polly, the AI assistant for AI engineering in LangSmith, helps you understand long-running agent executions by analyzing traces, …
 
How to debug voice agents with LangSmith

How to debug voice agents with LangSmith

LangChain December 9, 2025
Learn how to debug and improve a AI voice agent using LangSmith. We’ll walk through tracing conversations, spotting failures, and …
 
Build a voice agent with LangChain

Build a voice agent with LangChain

LangChain December 9, 2025
Learn how to build a speech-to-text voice agent using LangChain. We break down the two methods of building voice agents …
 
Production-Ready Agents: Automatic Tool Retries with Exponential Backoff

Production-Ready Agents: Automatic Tool Retries with Exponential Backoff

LangChain December 4, 2025
Tools fail. APIs time out. Services throw random 500s. If your agent can’t recover, your entire workflow collapses. In this …
 
Building a Linear issue agent with Langsmith Agent Builder

Building a Linear issue agent with Langsmith Agent Builder

LangChain December 3, 2025
Learn how to build an agent that can create and edit Linear issues using our no-code Agent Builder. Try it …
 
Building a Market Research Assistant with Langsmith Agent Builder

Building a Market Research Assistant with Langsmith Agent Builder

LangChain December 3, 2025
Learn how to quickly create a research agent in LangSmith using our no-code Agent Builder. Try it for free today: …
 
Building an Email Assistant with Langsmith Agent Builder

Building an Email Assistant with Langsmith Agent Builder

LangChain December 3, 2025
Learn how to quickly create an email assistant in LangSmith using our no-code Agent Builder. Try it for free today: …
 
Summarization Middleware (Python)

Summarization Middleware (Python)

LangChain December 2, 2025
Learn about how to use LangChain's summarization middleware as a key component of your context engineering pipeline. This middleware is …
 
LangSmith Agent Builder Now Available in Public Beta

LangSmith Agent Builder Now Available in Public Beta

LangChain December 2, 2025
LangSmith Agent Builder is now in Public Beta, enabling anyone to create production ready agents without writing code. Learn what's …