---
title: "The AI Tools Index"
canonical: "https://theaitoolsindex.com/tools/langchain"
url: "https://theaitoolsindex.com/tools/langchain"
content_type: "text/markdown"
---
# LangChain

> The AI Tools Index is a browsable index of live AI tools organized by category, including tools currently for sale. Every listing links to the maker's real product, and any paid placement is always labeled "Sponsored."

Canonical HTML: https://theaitoolsindex.com/tools/langchain
This representation: Accept: text/markdown on the same URL.
Agent map: https://theaitoolsindex.com/llms.txt · OpenAPI: https://theaitoolsindex.com/openapi.json · MCP: https://theaitoolsindex.com/api/mcp/mcp

A reference entry for LangChain and its LangSmith platform.

Category: AI Agents
Product URL: https://www.langchain.com
Launch date: 2026-07-21

## Description

LangChain is indexed here as the company behind widely used frameworks plus the LangSmith platform for building, observing, evaluating, and deploying AI agents and applications. It's aimed at developers building LLM-powered systems. The entry covers both the open-source tooling and the LangSmith product.

Listing page: https://theaitoolsindex.com/tools/langchain