Devtoolwatch BoardOpenMuse review
OpenMuse is a self-hostable personal-agent app with a persistent browser, optional Linux terminal, files, and durable tasks, built with CopilotKit and AG-UI.
TL;DR
OpenMuse is an alpha personal-agent application you self-host and build on, with iOS, Android, and web clients. Developers can ask for an outcome, follow the plan, review actions, and take over the agent's browser or terminal. OpenMuse runs its own server, task worker, and browser worker, and the source is MIT licensed.
- 6kGitHub stars
- +494new stars, week of Oct 25
- #13in Coding agents this week
OpenMuse at a glance
- Category
- Coding agents
- Maintained by
- CopilotKit (organization, @CopilotKit on GitHub)
- License
- MIT
- Language
- TypeScript, Python, JavaScript
- Repository
- github.com/CopilotKit/openmuse
- First published
- Sep 15, 2026
What OpenMuse does
- OpenMuse browses public pages in a persistent Chromium session, with a Take control console to open that same session yourself.
- OpenMuse can run commands in an optional isolated Linux container, saving command receipts and editable workspace files.
- OpenMuse tracks durable task plans with progress, input requests, approvals, and pause, resume, cancel, and retry.
- OpenMuse fills PDF forms from email attachments and prepares a reviewed reply with a saved receipt.
- OpenMuse connects to Gmail and Google Calendar through OAuth, requiring a stored review for every send or calendar change.
- OpenMuse runs recurring public-page checks for changes, text availability, or USD price thresholds, with deduplicated alerts.
- OpenMuse imports transaction CSVs to build a spending summary with categories and a savings-goal action.
How it works
OpenMuse runs a Hono API with an in-process task worker, an Expo web or mobile client, and a Playwright Chromium browser worker. Chat uses CopilotKit headless chat with streamed AG-UI events. Threads are stored by CopilotKit Intelligence. Models come from OpenAI, Anthropic, or Google. Web search uses Parallel's Search MCP by default. Data is stored in embedded PGlite.
How to install and start using OpenMuse
Clone the repository
git clone https://github.com/CopilotKit/OpenMuse.git openmuseInstall dependencies
pnpm install --frozen-lockfileStart the browser worker with Docker Compose
docker compose --env-file .env -f infra/compose.yaml up --build -dRequirements
- Node 24 LTS and pnpm 11.19.0
- A CopilotKit Intelligence project key, kept server-only
- A provider key for OpenAI, Anthropic, or Google to use a real model
- Docker CLI and engine for the optional Linux terminal; Xcode or Android tooling for mobile builds
First steps
- Copy .env.example to .env, then run npx copilotkit@latest login and npx copilotkit@latest project select to get a project key.
- Set CPK_INTELLIGENCE_API_KEY in .env, run pnpm dev, then run pnpm dev:web in another terminal.
- Open localhost:8081 and send "Complete the permission slip" in Chat to try the local PDF flow.
- Start the browser worker, configure a model, and ask "Summarize copilotkit.ai" to watch the agent browse.
Who OpenMuse is for
- Developers who want a self-hosted personal-agent template to clone and customize
- Teams building agent apps on CopilotKit and AG-UI across iOS, Android, and web
- Developers prototyping agents that browse, run commands, and handle email and PDFs with human review
Limitations to know
- OpenMuse is alpha software; open-ended reasoning, live Google accounts, and Rich Threads need their own configuration.
- OpenMuse supports one owner with a shared access key; it is not a multi-tenant authentication system.
- OpenMuse terminal commands have a 30-second limit and no networking; it is a Linux container, not a full VM.
- Graphical desktops, autonomous checkout, voice, device push, and automatic payments are not yet implemented.
Is OpenMuse growing? Usage data
In the week of Oct 25–31, 2026, OpenMuse ranked #24 on the Devtoolwatch Board and #13 in Coding agents, with a momentum score of 86 out of 100.
Show the weekly numbers
| Week of | New stars |
|---|---|
| Aug 9, 2026 | – |
| Aug 16, 2026 | – |
| Aug 23, 2026 | – |
| Aug 30, 2026 | – |
| Sep 6, 2026 | – |
| Sep 13, 2026 | 7 |
| Sep 20, 2026 | 2.3k |
| Sep 27, 2026 | 1.5k |
| Oct 4, 2026 | 754 |
| Oct 11, 2026 | 608 |
| Oct 18, 2026 | 352 |
| Oct 25, 2026 | 494 |
The Board ranks tools by four signals each week: new stars, new stars for the repo's size, added downloads and download growth beyond the market. How the ranking works.
OpenMuse alternatives
Other AI coding agents on the Board in the week of Oct 25–31, 2026, by momentum:
| Rank | Tool | Stars | Downloads/wk |
|---|---|---|---|
| #1 | CindyCindy is an open-source AI agent app for desktop and mobile that combines Claude Code, Codex and Pi across your connected devices. | 8.8k | – |
| #2 | OpenMausBotOpenMausBot is an open-source desktop chat app where each contact is a local Claude, Codex, or Grok CLI agent with its own computer. | 9.6k | – |
| #3 | OrcaOrca is a desktop agent development environment for running Claude Code, Codex, and other CLI coding agents in parallel, each in its own… | 111.7k | – |
| #4 | OpenBotOpenBot is an open-source, self-hosted template for AI coworkers that each get their own browser, files and granted tools, with every… | 9.1k | – |
| #5 | Agent ReachAgent Reach is a Python CLI that lets AI agents search and read platforms such as Twitter, Reddit, YouTube, GitHub, Bilibili and… | 107.2k | – |
| #6 | Skill RecorderSkill Recorder is a desktop app that records your on-screen work session and turns it into a reusable agent Skill or Automation. | 5.6k | – |
OpenMuse FAQ
Is OpenMuse free and open source?
Yes. OpenMuse's source code is on GitHub (CopilotKit/openmuse) under the MIT license, so you can use it for free.
How do I install OpenMuse?
Run git clone https://github.com/CopilotKit/OpenMuse.git openmuse. The install section above has the other options from the project's README.
Is OpenMuse still maintained?
Yes. The CopilotKit/openmuse repository was last updated on Nov 1, 2026.
How popular is OpenMuse?
OpenMuse has 6k GitHub stars as of Nov 1, 2026. It gained 494 new stars in the week of Oct 25–31, 2026, against a 12-week average of 862 a week. That made it #13 among AI coding agents on the Devtoolwatch Board.
What are the best alternatives to OpenMuse?
Other AI coding agents on the Devtoolwatch Board in the week of Oct 25–31, 2026, by momentum: Cindy (#1), OpenMausBot (#2), Orca (#3), OpenBot (#4), Agent Reach (#5). The alternatives table above has their numbers.
Does OpenMuse need a model or Google account to try it?
No. The OpenMuse local sample app needs no model, Google account, or Docker. You do need Node 24 LTS, pnpm 11.19.0, and a CopilotKit Intelligence project key.
Which model providers does OpenMuse support?
OpenMuse supports OpenAI, Anthropic, or Google providers through CopilotKit. The default model is openai/gpt-5. Set AGENT_BACKEND=model, MODEL=provider/model-id, and the matching provider key, which stays on the server.
Can I deploy OpenMuse to Render?
Yes. OpenMuse includes a render.yaml that deploys three services: the API, the web app, and a private browser. The README says Standard is the smallest plan that stays up, because PGlite runs out of memory at 512 MB.
What data does OpenMuse's web search send to third parties?
OpenMuse web search sends model-generated queries and context, plus a random session identifier, to Parallel. That context may include conversation or task information. Search is on by default, and you can disable it with WEB_SEARCH_ENABLED=false.
Is the OpenMuse Linux terminal sandboxed?
Yes. OpenMuse runs commands in a nonroot container with no host-directory mounts or credentials, and terminal networking disabled. A named /workspace volume keeps files when the container stops.
Sources
OpenMuse README badge
Maintainers can show the tool's weekly Board rank in their README:
[](https://index.devtoolwatch.com/tools/copilotkit-openmuse/)How this page is made: Devtoolwatch writes each review from the project's README, releases, package metadata and website, with an AI model, then checks every claim against the source it cites and drops what the sources don't support. The numbers come from Devtoolwatch's daily GitHub snapshots, GitHub's stargazer history, and the npm and PyPI download APIs. Spotted an error? Email [email protected].