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langchainjs

langchain-ai/langchainjs

The agent engineering platform

GraphCanon updated 2w · GitHub synced 2w · 25 views this month

18k stars3.3k forksLast push 2w TypeScript MIT

Decision brief

LangChain.js is a TypeScript-based tool designed for building AI agents. It simplifies the development process with its specific focus and ease of installation via popular package managers.

Good fit when

  • - You are working specifically with TypeScript projects, as LangChain.js leverages TypeScript's strong typing to enhance agent-building quality.
  • - If you aim to quickly set up your environment using one-click installations through npm, pnpm, or yarn which LangChain.js supports directly.

Avoid when

  • - When the project or team lacks experience with TypeScript. Since LangChain.js is built on TypeScript, leveraging its full potential might be challenging without proficiency in this language.
  • - In scenarios requiring minimal dependencies where a lightweight setup is necessary. LangChain.js relies on specific installation methods and may not fit environments that restrict the use of package

Observed Jul 11, 2026 · Source: enrich:decision_facts

Verify the decision

Maintenance and security

Full trust report
Maintenance
Very active (0d since push)
As of 2w
Provenance
Not a fork · Organization account
As of 2w
Security (OSV)
No lockfile
As of 1mo

Public GitHub metadata and optional OSV scans. Signals, not a guarantee. Trust methodology.

Backing

Company context for LangChain. Display-only - separate from trust and ranking.

Company
LangChain·GitHub org profile·1mo
Funding
$25,000,000 (2024-02)·GraphCanon curated seed (public press)·1mo
Commercial model
Open core·GraphCanon curated seed·1mo

Install

npm install langchainjs
npm

How it fits your stack(1)

Typed graph edges - alternatives, integrations, successors, and dependencies. Ranked by relationship type, not raw GitHub stars.

Relationship graph

Optional deeper exploration of typed edges and category neighbours.

Similar tools

Same-category neighbours not already linked as typed edges.

Evidence and technical details

Sourced facts, taxonomy, compatibility claims, README excerpt, and machine-readable endpoints.

Overview

A TypeScript-based development tool for building AI agents.

Capability facts

MCP server
No MCP server detected

Source: repo_scan · Aug 8, 2026

Languages
typescript, javascript

Source: github.language+package.json · Aug 8, 2026

Categories

Graph entities

Compatibility

Sourced claims from the README excerpt - not unsourced marketing copy.

LangChain integrationLangChain

Source: README excerpt (regex_v1, Aug 8, 2026)

You can use npm, pnpm, or yarn to install LangChain.js
Source link
Node.js runtimeNode.js

Source: README excerpt (regex_v1, Aug 8, 2026)

`npm install -S langchain` or `pnpm install langchain` or `yarn add langchain`
Source link

Tags

README

⚡️ Quick Install

You can use npm, pnpm, or yarn to install LangChain.js

npm install -S langchain or pnpm install langchain or yarn add langchain

For agents

This page has a .md twin and JSON over the API.

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