longsurf-ai/openchart

Download Desktop · Self-hosting · Features · Tea

OpenChart brings AI agents into every step of your investment journey: statistical and technical analysis with code and charts, real-time responses to market events with alerts, opportunity discovery through agentic research, and more.

OpenChart is not built to monetize software, but to explore a future where humans and agents manage assets together. If you believe in this future and want to join forces, we want to talk to you.

Quick start

Download Desktop for macOS (Apple Silicon), open the disk image, and install OpenChart.

To run Desktop from source, install Node.js 24, npm 11.11.1, Bun 1.4.2, and Just, then run:

git clone https://github.com/longsurf-ai/openchart.git
cd openchart
just install --frozen-lockfile
just desktop

just install also initializes and builds Tea, a programming language built for analyzing market, by the same team. Follow the setup guide for your first chart and alert, or the development guide for building and packaging the app.

Desktop is free. AI usage follows your agent provider's plan; optional Cloud market data is priced separately.

Key features

Charts without software quotas Add indicators and Volume Profile, then expand to a 4×4 grid. No software plan limits on charts, indicators, or price and indicator alerts.	Use your own agents Use your Claude, Codex, and Gemini models to research markets, build indicators, and set up alerts with the accounts you already have.
Describe what to watch Tell your agent what matters. It builds Tea monitors that evaluate incoming data and investigate when a condition fires.	Explain what moved the chart Select a range and let your agent research the move, with source-linked annotations pinned to the bars.
Draw it, get alerted Draw a line or zone on the chart. When price crosses it, an alert can ask your agent to research the move.	Write your own market logic in Tea Build custom indicators and conditions with functions, loops, state, and collections that evaluate as data flows in. Explore Tea →

Staying updated

Star OpenChart to support the project and help more people discover it.

Credits

Thank you to the projects and people whose work helps shape OpenChart:

• Jan: for inspiration on the app's design and visual style.
• TradingView's Pine Script:

for inspiring Tea's language design.

• OpenCode: a major inspiration for OpenChart, and the

project through which we discovered Effect.

• Dify: for inspiring the organization of

this README.

• assistant-ui and

AG-UI: for the agent conversation interface and event protocol.

• shadcn/ui,

Radix UI, and Base UI: for reusable interface components.

• Effect: for the runtime, concurrency, and error-handling

foundations.

• Inter and Hugeicons: for

typography and interface icons.

• robust-orientation and

related libraries by Mikola Lysenko, and kld-intersections by Kevin Lindsey: for geometry algorithms adapted in Tea.

Thanks also to the maintainers of the many other open-source dependencies that make OpenChart possible.

Contributing

Help improve OpenChart through code, indicators, documentation, and feedback.

• Code: Start with the development guide and

architecture. Run just check before submitting a pull request.

• Indicators: Improve OpenChart's built-in studies, or contribute to the

Tea compiler and runtime.

• Documentation: Fix an unclear explanation, improve a setup guide, or add a

useful example.

• Ideas and feedback: Tell us what you are building on

Discord, or open an issue with a bug report or feature request.

Contributors

Thanks to everyone helping build OpenChart.

Community & contact

• Discord: Ask questions, share charts and

indicators, and meet other users.

• GitHub Issues: Report

reproducible bugs and suggest improvements.

• X / @OpenChartHQ: Follow release news and project

updates.

• Reddit / r/OpenChartOfficial: Share

setups, discuss market research workflows, and exchange ideas.

Security disclosure

Report vulnerabilities privately to security@longsurf.ai, following our security policy. Please do not disclose vulnerabilities in public issues, pull requests, or community channels.

License

OpenChart uses the OpenChart License, based on Apache 2.0 with additional conditions. See the license for usage and commercial terms. For commercial licensing, contact legal@longsurf.ai.