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Readme

EvoScientist WebUI

Web UI for EvoScientist — a self-evolving AI scientist built on DeepAgents/LangGraph.

The browser connects directly to a running EvoScientist deployment and gives you a chat interface with streaming responses, tool calls, sub-agent activity, files, and tasks.

Prerequisites

Node.js 20+
A running EvoScientist backend (the LangGraph deployment). From your EvoScientist install, start it with:
```
EvoSci deploy        # serves the LangGraph API at http://127.0.0.1:6174
```
Keep this running in its own terminal.

Quick start (development)

npm install
npm run dev

Open http://localhost:4716. In the configuration dialog, enter your Deployment URL (default http://127.0.0.1:6174) and click Save. That's it — start chatting.

You need two things running: the EvoScientist backend (EvoSci deploy, port 6174) and this UI (npm run dev, port 4716).

Production build

npm run build        # outputs the optimized app
npm start            # serves it on http://localhost:4716

Configuration

Deployment URL — the EvoScientist LangGraph endpoint (default http://127.0.0.1:6174, the EvoSci deploy default port). Saved in your browser's local storage.
The UI always talks to the EvoScientist main agent; its sub-agents (writing-agent, data-analysis-agent) are internal and not user-selectable.
(Optional, advanced) Set NEXT_PUBLIC_LANGSMITH_API_KEY if you connect to a deployment that requires LangSmith authentication.

Scripts

Command	Description
`npm run dev`	Start the dev server on port 4716
`npm run build`	Production build
`npm start`	Serve the production build on port 4716
`npm run lint`	Lint with ESLint
`npm run format`	Format with Prettier
`npm run format:check`	Check formatting (used in CI)

Tech stack

Next.js 16 · React 19 · TypeScript · Tailwind CSS · @langchain/langgraph-sdk.

License

Apache-2.0 — see LICENSE.