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Murmell

Murmell

Murmell is a browser-based shared canvas for running multiple AI coding agents (Claude Code, Codex, Kimi, OpenCode) on a cloud machine so teams can collaborate in real time on a single project directory with per-agent terminals, live previews, and file reservation to prevent write collisions.

Murmell is ai tools software teams evaluate for software & gaming. Use this page to review pricing, integration signals, and the best alternatives before you commit.

Freemium Enterprise 70/100
#34 in Coding (34 tools)
Just launched
Data reviewed Aug 3, 2026

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Quick Overview

Best for: Software & Gaming

What it does

AI Tools software for decision-makers comparing workflow fit and alternatives.

Best fit

Software & Gaming

Pricing snapshot

Freemium from $39/month

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Murmell

Murmell is a browser canvas that runs multiple AI coding agents (Claude Code, Codex, Kimi, OpenCode) on a cloud machine so collaborators can work in the same project directory. Each agent opens in its own window with a real terminal and the canvas streams cursors, names, and terminal output to anyone with the shared link. Code written on a canvas is pushed to a private GitHub repository created with the project; the workspace itself runs on a Murmell machine and is disposable while the repository persists.

Murmell coordinates agent writes by having each agent claim the file paths it intends to edit before writing, snapshotting colliding writes and attributing changes to the writer. The product is run as a hosted service (self-hosting is not supported) and requires you to sign in agents with your own accounts or API keys—Murmell does not resell model tokens or store keys.

Cloud canvas where your team and AI agents works together Discussion | Link

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Key Features

Shared canvas with per-agent windows

Run multiple AI coding agents in individual terminal windows on a single canvas so each agent has its own view and terminal while everyone on the link sees the same session.

File reservation (one holder per path)

Agents claim the file paths they will touch before writing; the board refuses other writers until the holder releases the path, reducing merge conflicts and lost work.

Live streaming and link-based sharing

Send a link to let teammates watch cursors, names, and terminal output as work happens; watching a running canvas is free and requires no account.

Private GitHub repository for each project

Work is pushed to a private GitHub repository created with the project; the repository persists even if the workspace machine is torn down.

Use your own agent accounts and API keys

Agents are signed in with your subscriptions or API keys—Murmell does not resell tokens and does not store keys, charging only for the machine and collaboration.

Live previews and collaborative editing

Canvas shows live previews (for example a running development server) and lets collaborators open, watch, and interact without replaying or refreshing to stay in step.

Hosted machines per project

Each canvas runs on its own Murmell-hosted machine; projects are isolated from one another and the executing machine holds no database or decryption key.

Pricing

Free Tier Available

Watching a running canvas is free and uncapped for viewers; every plan starts with a 14-day free trial (two weeks free).

Solo

$39/month
  • One project
  • One agent account on Murmell machines
  • Runs in the cloud
  • Unlimited hours (per plan text)

Pro

$69/month
  • Share a canvas (anyone can watch)
  • Five agent windows at once
  • Three projects
  • Two weeks free; includes $60 of Opus credit (Pro and Builder)

Builder

$149/month
  • For teams keeping several things warm
  • More agent windows and team canvases
  • Canvases that belong to the team, not the creator
  • Two weeks free; includes $60 of Opus credit (Pro and Builder)

Use Cases

Collaborative AI-assisted development

Teams can run multiple coding agents against the same repository in a single canvas and collaborate in real time, sharing a live session link with reviewers or teammates.

Pairing and code review with live context

Send a link to let others watch the session as agents make changes, enabling synchronous review and demonstration without replaying or refreshing.

Coordinating multiple agents on one codebase

Split large tasks among agents while Murmell enforces file reservations to prevent conflicting writes and preserve authorship for each change.

Prototyping and running previews

Run development servers and previews on the canvas machine so collaborators can view live outputs as agents implement features.

Integrations

Claude Code

Run Claude Code in its own terminal on the Murmell canvas, signed in with your account.

Codex

Run Codex in its own terminal on the canvas, using your account or API key.

Kimi

Run Kimi in its own terminal on the canvas, using your account or API key.

OpenCode

Run OpenCode in its own terminal on the canvas, using your account or API key.

GitHub (private repository)

Murmell creates a private GitHub repository for each project and pushes work there before tearing down the workspace machine.

Benefits

Real-time shared visibility into agent actions, terminals, and cursors for remote collaborators without requiring accounts for viewers.
Reduced merge conflicts through file claiming and snapshotting of colliding writes—agents must claim paths before writing.
Control over models and billing by connecting your own agent subscriptions/API keys; Murmell charges for the machine and collaboration, not model tokens.

Limitations

Murmell is not self-hostable; the service runs on Murmell-hosted machines only.
Watching a running canvas is free, but returning to a canvas that has been turned off may require a Pro plan.
You must connect and use your own agent subscriptions or API keys; Murmell does not provide or resell model tokens.

Frequently Asked Questions

What is Murmell?
Murmell is a browser canvas where several AI coding agents (Claude Code, Codex, Kimi, OpenCode) run on a cloud machine and share one project directory. Each agent opens in its own window with a real terminal, and everyone on the link sees the same canvas as it happens.
Can several people really use one canvas at the same time?
Yes. Everyone on the link sees the same room: who joined, which window they are watching, where their cursor is. Each person drives their own agents, and nothing has to be replayed or refreshed to stay in step.
Where does my code live?
On a machine Murmell runs, in one directory, and in a private GitHub repository created with the project. The workspace is disposable and the repository is not: the work is pushed before a machine is ever torn down.
How much does Murmell cost?
Murmell is a paid product with Solo ($39), Pro ($69), and Builder ($149) monthly plans; every plan starts with 14 days free. Read-only watching of a running canvas is free and uncapped.
Do you resell tokens?
No. You connect the agent subscriptions and API keys you already pay for. Murmell charges for the machine and the collaboration, never for the model.
What stops two agents destroying each other?
An agent claims the paths it is about to touch before it writes. A watcher attributes every write back to whoever made it, and a colliding write is snapshotted before it lands.
Is each project isolated?
Yes. Every canvas runs on its own machine, separate from every other project Murmell hosts. The machine that executes agent code holds no database and no decryption key.
Which coding agents does Murmell support?
Claude Code, Codex, Kimi and OpenCode today, each in its own terminal on the canvas, signed in with your own account or API key.
Can I self-host it?
No. Murmell runs the machines for you. That is the product. Your code still ends up in a private repository you own.

Getting Started

  1. 1 Open a canvas on Murmell (click 'Open a canvas' or 'Free now').
  2. 2 Add your agents by signing in with your agent accounts or providing API keys (Claude Code, Codex, Kimi, OpenCode supported).
  3. 3 Share the canvas link with teammates to watch or collaborate; start a trial or select a paid plan to keep canvases running when you return.

Support

Contact page

General inquiries and support via the site's Contact page (link in site footer).

FAQ/docs

Product FAQ and explanatory pages on the Murmell site covering how the canvas works, agents, isolation, and pricing.

API

Available: No

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