# langchain-ai/agent-chat-ui

🦜💬 Web app for interacting with any LangGraph agent (PY & TS) via a chat interface.

Repository: https://github.com/langchain-ai/agent-chat-ui
Canonical: https://ross.abutalabs.com/products/agent-chat-ui
Homepage: https://agentchat.vercel.app
Language: TypeScript
License: MIT
License Family: permissive
Topics: agent, chat, langgraph, llm
Last push: 2026-08-26T13:49:43+00:00

## Health v2 (maintenance only)
Score: 65/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 40
- inputs: {"age_days": 561, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3096, forks 680 (observed 2026-08-28T04:07:43.347047+00:00)

## What it is
A Next.js web application for chatting with any LangGraph agent (Python or TypeScript) through a chat interface. It connects to a LangGraph server via a deployment URL and assistant/graph ID, with a hosted version available at agentchat.vercel.app.

## Use cases
- test my langgraph agent in a chat ui
- chat interface for langgraph server
- demo my llm agent to stakeholders
- quickly spin up a frontend for my ai agent
- debug agent message streaming
- hosted chat playground for langchain agents

## When to choose
- you're building agents with LangGraph and need a ready-made chat frontend
- you want to demo or test LangGraph deployments without writing UI code
- you need streaming message rendering out of the box

## When to avoid
- your agents don't run on a LangGraph server with a messages key
- you need a fully customized production chat product
- you want a backend-agnostic chat UI not tied to the LangChain ecosystem

## Facets
- artifact type: application
- maturity: active
- function: chat-interface, web-framework, agent-framework
- domain: chatbots, large-language-models, web-development
- platform: cross-platform
- tags: langgraph, nextjs, chat-ui, langchain, llm-agents, ai-agents, nodejs, web-server

## Member repositories
- langchain-ai/agent-chat-ui (main) score 65

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:43.347047+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:46:23.097672+00:00, confidence not recorded.
  - readme: https://github.com/langchain-ai/agent-chat-ui (fetched 2026-08-28T04:07:43.347047+00:00, sha a3d9dee797d5)
  - homepage: https://agentchat.vercel.app (fetched 2026-08-29T09:42:40.413949+00:00, sha 90de888a1cc8)
- Data as of 2026-08-30T08:39:29.467469+00:00.