OpenDuet

Open-source, self-hosted template for a proactive agent that works with any AG-UI harness.

Free·AI Agents·Open Source·AG-UI·Self-hosted

What is OpenDuet?

OpenDuet is an open-source template from CopilotKit for a proactive agent you host yourself. It is the open-source counterpart to Claude Duet. Any agent that speaks AG-UI can be the agent.

OpenDuet opens with a morning brief, keeps working on a computer of its own, and waits before it sends, pays, signs, or deletes. Make can generate a design system, a design, a dashboard, slides, a document, or a web page. You reach it on the web, and through Slack or Microsoft Teams.

The README says it is early. It runs on OpenBot, CopilotKit's self-hosted agent platform, with OpenDuet's name, bots, and skills in one folder. The license is MIT.

Setup needs Docker, Bun 1.3 or newer, Node, a model key, and a CopilotKit Intelligence project. The free Developer plan covers threads and memory. The default model is OpenAI's gpt-5.6-terra.

A hosted deploy guide is not published. The repository is https://github.com/CopilotKit/OpenDuet.

Pricing: MIT licensed and self-hosted. CopilotKit Intelligence's free Developer plan is enough for threads and memory. You bring a model key. The default model is OpenAI gpt-5.6-terra.

Features

Self-hosted proactive agent template from CopilotKit
Works with any agent that speaks AG-UI
Approvals before send, pay, sign, or delete
Make generates designs, dashboards, and pages
Web, Slack, and Microsoft Teams
MIT license, running on OpenBot

FAQs

Common questions about OpenDuet

How is OpenDuet related to Claude Duet?

OpenDuet is CopilotKit's open-source, self-hosted template for a proactive agent. Claude Duet is Anthropic's app. Creators Toolbox covers Claude Duet at /tools/claude-duet and /blog/claude-duet.

What do I need to run OpenDuet?

Docker, Bun 1.3 or newer, Node, a model key, and a CopilotKit Intelligence project. The free Developer plan covers threads and memory. A hosted deploy guide is not published yet.