The SDK build script strips the 'v' prefix from semver release tags when
publishing Docker images. The correct tag format is {version}-python
(e.g., 1.22.0-python), not v{version}-python.
This fixes the 'Unable to find image' error when running npm run dev:docker.
Changes:
- Update DEFAULT_AGENT_SERVER_TAG from v1.22.0-python to 1.22.0-python
- Update documentation in AGENTS.md to reflect correct tag format
Co-authored-by: openhands <openhands@all-hands.dev>
agent-canvas
Warning
This project is in sandbox phase. It may be vibecoded, untested, or out of date. OpenHands takes no responsibility for the code or its support. Learn more.
Agent Canvas is a web frontend for managing agents. You can:
- ⌨️ prompt them manually
- 🕐 run them on a schedule
- ⚡ trigger them automatically—e.g. from Slack or GitHub.
Agents can run anywhere:
- 🧑💻 on your laptop
- 🖥️ on a remote virtual machine
- ☁️ in our hosted cloud
- 🏢 or inside your company’s infrastructure
You can work with any agent (e.g. Claude Code, Codex) or connect directly to an LLM (e.g. Anthropic, OpenAI, Gemini, Mistral, Minimax, Kimi).
If you have questions or feedback, please open a GitHub issue or join the #proj-agent-canvas channel in Slack
Quickstart
With Docker (recommended)
Prerequisites:
- Node.js 22.12.x or later
npm- Docker
Set $PROJECT_PATH to the directory on your machine where your projects live (e.g. /path/to/your/projects). The agent server will mount this directory so the agent can read and edit your code.
By default the container is kept isolated from your host home — only ~/.openhands, ~/.claude, ~/.codex, and ~/.ssh are mounted individually (and only if they exist). If you want the Add Workspace dialog to browse your real host filesystem, set OH_MOUNT_HOST_HOME=1 before npm run dev:docker to bind-mount your entire host home onto /home/openhands in the container. The Add Workspace modal also shows this hint inline when it detects the mount is off.
export PROJECT_PATH=/path/to/your/projects
git clone https://github.com/OpenHands/agent-canvas.git
cd agent-canvas
npm install
npm run dev:docker
Access the UI at http://localhost:8000
Without Docker
Warning
This runs the agent-server directly on the machine you're installing on--the agent will have full access to your filesystem!
Running without docker is great if you're running Agent Canvas on a VM. See SELF_HOSTING.md for details, especially with respect to security hardening. Notably, you can run the backend on multiple different VMs and switch between them from the same Agent Canvas frontend!
Prerequisites:
- Node.js 22.12.x or later
npmuv(for running the agent server viauvx)
git clone https://github.com/OpenHands/agent-canvas.git
cd agent-canvas
npm install
npm run dev:dangerously-dockerless
Access the UI at http://localhost:8000
Architecture
Agent Canvas is powered by the OpenHands Agent Server, a REST API for running multiple agents on a single machine. Each Agent Server runs on a single host/port; the Agent Canvas can connect to multiple Agent Servers and easily flip between them.
You can run an Agent Server anywhere:
- Directly on your laptop (be careful!)
- Inside a Docker container
- On a dedicated machine like a Mac Mini
- On a virtual machine in the cloud
- Inside a Kubernetes Pod
- Inside OpenHands Cloud (our commercial offering)
The Agent Server is often paired with an Automation Server, which lets you set up agents that run on a schedule or in response to events.
More documentation
For contributor and developer workflows, including frontend-only mode, mock mode, environment variables, and build/test commands, see DEVELOPMENT.md.