---
id: "entity-langchain"
type: "entity"
entityType: "organization"
canonicalName: "LangChain"
aliases: ["LangChain Inc."]
source_timestamps: ["§ Where Harness Engineering is Going"]
tags: ["organization"]
related: ["entity-deepagents", "entity-langsmith", "entity-vivek-trivedy"]
canonicalUrl: "https://www.langchain.com/"
---
# LangChain

## Profile

LangChain is the organization hosting the source blog and is one of the most prominent companies actively researching **harness engineering**. Its stack supports the concepts in this vault:

- [[entity-deepagents]] — a harness-building library used for advanced harness patterns (Ralph Loops, filesystem abstractions).
- [[entity-langsmith]] — an agent engineering platform for tracing, debugging, evaluating, and deploying agents.

## Role in This Source

LangChain is the publisher of the article and the maintainer of the libraries cited in §“Where Harness Engineering is Going”. Vivek Trivedy ([[entity-vivek-trivedy]]) authors the post.

## Canonical URL

https://www.langchain.com/