OpenUI Forge — LangChain

Build generative UI apps with OpenUI + LangChain. Stream from ChatOpenAI or ChatAnthropic, convert to OpenAI NDJSON.

Activation Triggers

• "openui langchain", "openui langgraph", "openui langsmith"
• "generative ui langchain", "langchain streaming ui"

Prerequisites

• Node.js >= 22 (24 LTS recommended), React >= 18.3.1 (19+ recommended)
• OPENAI_API_KEY or ANTHROPIC_API_KEY set
• Next.js project (App Router recommended)

Quick Start