LangChain

LLM application framework

agentsintermediateFree tier

Overview

LangChain is an open-source framework for building applications with LLMs. Features chains, agents, RAG pipelines, and tool use. Supports Python and JavaScript. LangSmith (paid) adds observability and evaluation. The de facto standard for LLM app development.

Best For

+LLM app development
+RAG systems
+AI agents
+Prototyping

News & Updates

DXC Partners with LangChain to Scale Governed AI Agents to 125 Enterprises

DXC Technology announced on October 13, 2026, a partnership with LangChain to advance governed agentic AI across mission-critical enterprise IT environments. DXC's OASIS orchestration platform is already in production and scaling toward 125 customer environments across regulated industries and multiple geographies. The collaboration combines LangChain's agent framework with DXC's governance and orchestration capabilities to help enterprises deploy AI agents safely in production. This addresses a key barrier to enterprise AI adoption: the lack of robust governance for autonomous agents.

new_tools10/13/2026

New 'Agentic Journal' Project Proposes Mathematical Framework for AI Agent Design

A new project called the Agentic Journal of Higher Categorical Semantics has launched at higher-categorical-semantics.pages.dev, proposing higher category theory as a formal foundation for AI agent architectures. The site frames agentic AI systems as objects in higher categories, where agents, tasks, and interactions are modeled as morphisms and higher morphisms rather than simple state machines. This matters because today's agent frameworks like LangChain and AutoGPT rely on ad-hoc prompt chaining, which lacks formal guarantees for composition, error propagation, or multi-agent coordination. If the approach gains traction, it could give researchers a rigorous mathematical language for specifying and verifying agent behavior, similar to how denotational semantics formalized programming languages.

other10/12/2026

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Overview

Best For

News & Updates

DXC Partners with LangChain to Scale Governed AI Agents to 125 Enterprises

New 'Agentic Journal' Project Proposes Mathematical Framework for AI Agent Design