LangChain Blog (Page 9)

LangChain State of AI 2024 Report

Dive into LangSmith product usage patterns that show how the AI ecosystem and the way people are building LLM apps is evolving.

By LangChain 6 min read

Custom Authentication and Access Control for LangGraph Platform

Note: As of October 2025, LangGraph Platform has been re-named to "LangSmith Deployment". Today we're introducing custom authentication and resource-level access

4 min read

How AppFolio transformed property management workflows with Realm-X, built using LangGraph and LangSmith

See how AppFolio's AI-powered copilot Realm-X has saved property managers over 10 hours per week. Learn how they improved Realm-X's performance 2x using LangSmith and built an agent architecture with LangGraph.

Case Studies 4 min read

Making it easier to build human-in-the-loop agents with interrupt

While agents can be powerful, they are not perfect. This often makes it important to keep the human “in the loop” when building agents. For

4 min read

Command: A new tool for building multi-agent architectures in LangGraph

Learn about Command, a new tool in LangGraph that helps facilitate multi-agent communication.

2 min read

Introducing OpenTelemetry support for LangSmith

LangSmith now supports OpenTelemetry for distributed tracing and observability.

By LangChain 4 min read

Easier evaluations with LangSmith SDK v0.2

We've released a v0.2 of the LangSmith SDKs with various evaluations and performance improvements.

By LangChain 4 min read

Semantic Search for LangGraph Memory

Following our launch of long-term memory support, we're adding semantic search to LangGraph's BaseStore. Available today in the open source PostgresStore

langgraph 3 min read

How Cleric’s AI SRE leveled up with continuous learning through LangSmith

Cleric is an AI SRE teammate that identifies issues using existing observability tools and infrastructure. See how they used LangSmith to investigate their production issues effectively.

Case Studies 4 min read

How Airtop built web-automation for AI agents powered by the LangChain ecosystem

See how Airtop, which provides browser automation for AI agents, built a flexible agent architecture with LangGraph and debugged and refined prompts in LangSmith.

Case Studies 3 min read

Agent Protocol: Interoperability for LLM agents

LangGraph is a multi-agent framework. This means not only interacting with other LangGraph agents, but all other types of agents as well, regardless of how

3 min read

LangSmith: Redesigned product homepage and Resource Tags for better organization

LangSmith's homepage is now organized into Observability, Evaluation, and Prompt Engineering. Learn why we organized the homepage like this. Plus, see our latest Resource Tags updates.

4 min read