langchain-ai/agent-chat-ui

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

Stars: 3.2k
Forks: 688
Open beginner issues: 0
Indexed issues: 56
Avg merge: 1d 1h
Merged PRs (30d): 5

Dominant language: TypeScript
License: MIT
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 18, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: No beginner labels indexed

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56 open issues indexed

[Showcase] langctl — CLI that scaffolds agent-chat-ui + LangGraph backend in one command Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

langchain-ai/agent-chat-ui#309 · Opened Aug 14, 2026
Support inline image rendering for LangChain tool results Open

Difficulty 3/5 1-2 days Newbie friendliness 72/100

langchain-ai/agent-chat-ui#307 · Opened Aug 12, 2026
Timestamp in the message requests & responses Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

langchain-ai/agent-chat-ui#297 · 1 reaction · Opened Jul 7, 2026
Preview generated HTML/SVG/Markdown artifacts from tool calls Open

Difficulty 4/5 3-5 days Newbie friendliness 55/100

langchain-ai/agent-chat-ui#291 · Opened Jun 9, 2026
fix: invalid DOM property clip-path in LangGraphLogoSVG (should be clipPath) Open

Difficulty 1/5 Under an hour Newbie friendliness 74/100

langchain-ai/agent-chat-ui#290 · 1 comment · Opened Jun 8, 2026
Connectome — open-source AI.OS that goes beyond chat UI to agent-generated dynamic interfaces Open

Difficulty 5/5 Over a week Newbie friendliness 12/100

langchain-ai/agent-chat-ui#274 · Opened Apr 27, 2026
deep-agents intrupts resets instead of resuming Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

langchain-ai/agent-chat-ui#269 · Opened Apr 8, 2026
BUG : can't resume graph on generic/custom interrupts Open

Difficulty 3/5 1-2 days Newbie friendliness 55/100

langchain-ai/agent-chat-ui#262 · 1 reaction · Opened Apr 3, 2026
Bug: ThreadProvider doesn't read NEXT_PUBLIC_* environment variables, breaking default configuration Open

Difficulty 1/5 Under an hour Newbie friendliness 55/100

langchain-ai/agent-chat-ui#233 · Opened Feb 11, 2026
Why isn’t this UI changed to something similar to chat.langchain.com? Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

langchain-ai/agent-chat-ui#230 · Opened Feb 9, 2026
how to add agent reasoning text to agent chat ui Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

langchain-ai/agent-chat-ui#228 · Opened Feb 2, 2026
Does it make sense to support "modes" like in Cursor? (Ask, Agent, Debug, Plan) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

langchain-ai/agent-chat-ui#223 · Opened Jan 21, 2026
Do you have an example API to use with the chat app? Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

langchain-ai/agent-chat-ui#218 · 1 comment · Opened Jan 5, 2026
agent-chat-ui cannot display reasoning content Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

langchain-ai/agent-chat-ui#216 · 1 comment · 1 reaction · Opened Dec 22, 2025
Sub-agent messages leak in agent-chat-ui when sub-agents are added as Tools Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

langchain-ai/agent-chat-ui#214 · 1 reaction · Opened Dec 18, 2025
An error when upload image to agent based on ollama model Open

Difficulty 2/5 1-3 hours Newbie friendliness 38/100

langchain-ai/agent-chat-ui#213 · 1 comment · 2 reactions · Opened Dec 15, 2025
Unable to send images or PDF documents Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

langchain-ai/agent-chat-ui#212 · 3 comments · Opened Dec 15, 2025
The API responses are not completely visible on front end. Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

langchain-ai/agent-chat-ui#210 · 3 comments · 1 reaction · Opened Dec 11, 2025
Agents using Annotation.Root Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

langchain-ai/agent-chat-ui#209 · Opened Dec 10, 2025
Can the Agent Chat UI display image messages？ Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

langchain-ai/agent-chat-ui#207 · 1 comment · Opened Dec 6, 2025
Bug Report: Message Edit (Time Travel) causes duplicate messages and tool_use validation errors Open

Difficulty 3/5 1-2 days Newbie friendliness 58/100

langchain-ai/agent-chat-ui#204 · Opened Nov 28, 2025
Disconnected from npx create-agent-chat-app ? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

langchain-ai/agent-chat-ui#203 · Opened Nov 28, 2025
UI Freezes When Streaming Large Content Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

langchain-ai/agent-chat-ui#201 · 13 comments · 8 reactions · Opened Nov 25, 2025
How to debug context_schema? Open

Difficulty 4/5 3-5 days Newbie friendliness 20/100

langchain-ai/agent-chat-ui#200 · Opened Nov 21, 2025
HumanInterrupt review UI not wotking Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

langchain-ai/agent-chat-ui#199 · 7 comments · Opened Nov 21, 2025
after pr "feat: Update interrupt schema to 1.0" mutlemodel chat fail Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

langchain-ai/agent-chat-ui#198 · Opened Nov 20, 2025
How to support multiple users? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

langchain-ai/agent-chat-ui#197 · Opened Nov 19, 2025
Connect to custom fast api server Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

langchain-ai/agent-chat-ui#195 · 1 comment · Opened Nov 13, 2025
Bump Langgraph to v1 Open

Difficulty 2/5 1-3 hours Newbie friendliness 48/100

langchain-ai/agent-chat-ui#193 · 3 reactions · Opened Nov 8, 2025
Bug when initial project vie git repo Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

langchain-ai/agent-chat-ui#186 · Opened Sep 30, 2025
Chat UI is not streaming AI responses with langgraph graph execution Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

langchain-ai/agent-chat-ui#182 · 2 comments · Opened Sep 28, 2025
How to sent "input" and "context" to an agent? Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

langchain-ai/agent-chat-ui#180 · 1 comment · Opened Sep 24, 2025
Unable to hide chat messages in LangSmith UI even with do-not-render and hidden tags Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

langchain-ai/agent-chat-ui#179 · 5 comments · 1 reaction · Opened Sep 22, 2025
can agent-chat-ui work with other backend server such as fastAPI? Open

Difficulty 5/5 Over a week Newbie friendliness 28/100

langchain-ai/agent-chat-ui#168 · 4 comments · 3 reactions · Opened Aug 15, 2025
Does agent-chat-ui have backend code? If so, could you provide the address? Open

Difficulty 1/5 Under an hour Newbie friendliness 20/100

langchain-ai/agent-chat-ui#167 · 2 comments · Opened Aug 14, 2025
How to make multiple tool calls within a subgraph, each guarded with HumanInterrupt? Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

langchain-ai/agent-chat-ui#166 · 2 comments · 1 reaction · Opened Aug 13, 2025
npx create-agent-chat-app generates old version of agent-chat-ui Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

langchain-ai/agent-chat-ui#160 · 2 comments · 4 reactions · Opened Aug 3, 2025
Custom UI for handling interrupts Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

langchain-ai/agent-chat-ui#158 · 2 comments · 3 reactions · Opened Jul 30, 2025
Enhancement: Add Dark Mode Support with Theme Switching Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

langchain-ai/agent-chat-ui#156 · 1 comment · Opened Jul 23, 2025
Help Needed: Displaying Selectable List in Agent Chat UI from Python Backend Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

langchain-ai/agent-chat-ui#154 · 6 comments · Opened Jul 17, 2025
How and where to pass, SubGraph streming as True ? Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

langchain-ai/agent-chat-ui#152 · 4 comments · 1 reaction · Opened Jul 6, 2025
Required approach for the backend? Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

langchain-ai/agent-chat-ui#145 · 3 comments · 1 reaction · Opened Jun 7, 2025
How to pass `callbacks`, `configurable`, and `metadata` config when using Langgraph Platform Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

langchain-ai/agent-chat-ui#144 · 1 reaction · Opened May 29, 2025
how can I add langgraph react agent that is exposed as an API Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

langchain-ai/agent-chat-ui#142 · 2 comments · Opened May 24, 2025
[Question / Feature Request] Langgraph Graph Config Support Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

langchain-ai/agent-chat-ui#132 · Opened May 5, 2025
[Trouble understanding artifact] Render custom UI Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

langchain-ai/agent-chat-ui#131 · 20 comments · 4 reactions · Opened May 5, 2025
Messages are disappearing from the chat window. Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

langchain-ai/agent-chat-ui#130 · 3 comments · 5 reactions · Opened May 1, 2025
[Feature Request] Custom auth example Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

langchain-ai/agent-chat-ui#126 · 2 comments · Opened Apr 28, 2025
[Question] Thread History when using API Passthrough Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

langchain-ai/agent-chat-ui#119 · 6 comments · 4 reactions · Opened Apr 23, 2025
[Feature Request] Drag-and-drop file inputs (text, image, PDF) Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

langchain-ai/agent-chat-ui#118 · 1 comment · 3 reactions · Opened Apr 23, 2025

langchain-ai/agent-chat-ui

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