open-computer-use

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Interested in Browser Use? Check out open-browser-use.

open-computer-use is an open-source Computer Use service wrapped as MCP. Any AI agent or MCP client can use it to run Computer Use on macOS, Linux, and Windows.

This project was inspired by OpenAI's Codex Computer Use. It showed that non-intrusive CUA can be built on top of Accessibility, so I decided to build an open-source version.

I started this repo with my harness template, a template for quickly spinning up AI-first projects. It has been one of our most useful workflows lately, especially for nearly 100% AI-generated projects. I also wrote a post about the methodology behind it.

Demos

Codex App and Codex CLI

npm i -g open-computer-use

open-computer-use
or
ocu

# Install into Codex by writing to ~/.codex/config.toml
open-computer-use install-codex-mcp

{
  "mcpServers": {
    "open-computer-use": {
      "command": "open-computer-use",
      "args": ["mcp"]
    }
  }
}

# Install for Codex
npx skills add iFurySt/open-computer-use -g -a codex --skill open-computer-use -y
npx skills ls -g -a codex | rg 'open-computer-use'

npx skills add iFurySt/open-computer-use -g -a claude-code --skill open-computer-use -y

npx skills update open-computer-use -g -y

You can also manually download and install the open-computer-use skill.

More

See the Locked Use guide for setup, installed components, and permissions.

Besides the MCP JSON config above, you can also use the built-in commands:

# Install into Codex by writing to ~/.codex/config.toml
open-computer-use install-codex-mcp
ocu install-codex-mcp
Install as a Codex plugin, mainly for Codex App
open-computer-use install-codex-plugin
Install into Claude Code by writing to ~/.claude.json
open-computer-use install-claude-mcp
Install into Gemini CLI for the current project by writing to ./.gemini/settings.json
open-computer-use install-gemini-mcp
Install into Gemini CLI user config instead
open-computer-use install-gemini-mcp --scope user
Install into opencode by writing to ~/.config/opencode/opencode.json (or the active config file)
open-computer-use install-opencode-mcp
Install through DeepSeek Harness's generic MCP compatibility path:
verifies the server, then writes a profile patch, turn-boundary hook, and skill
open-computer-use install-dsh-mcp
./scripts/install-dsh-mcp.sh --profile web --no-hook
Call a single Computer Use tool and print the MCP-style JSON result
open-computer-use call list_apps
ocu call list_apps
open-computer-use call get_app_state --args '{"app":"TextEdit"}'
Inspect code-first runtime availability
ocu capabilities
ocu capabilities --json
Run one JavaScript evaluation, from an argument, stdin, or a file
ocu js 'var apps = await cua.listApps({ emit: false }); nodeRepl.write(apps)'
printf '%s' 'nodeRepl.write(6 * 7)' | ocu js -
ocu js --file ./automation.mjs
Keep JavaScript and cua bindings for the current terminal session
ocu repl
Run a sequence in one process so element_index state can be reused
Sequence runs sleep 1s between successful operations by default
open-computer-use call --calls '[{"tool":"get_app_state","args":{"app":"TextEdit"}},{"tool":"press_key","args":{"app":"TextEdit","key":"Return"}}]'
open-computer-use call --calls-file examples/textedit-overlay-seq.json --sleep 0.5
Check permissions; onboarding only opens when something is missing
open-computer-use doctor
macOS: query permission JSON without opening onboarding
ocu doctor --json
Run local validation from a source checkout
make smoke
OPEN_COMPUTER_USE_STRESS_LOOPS=20 make stress
make agent-smoke
make agent-smoke SCENARIO=fixture-full
node ./scripts/run-agent-smoke-tests.mjs --agents=claude,codex --command=open-computer-use
node ./scripts/run-agent-smoke-tests.mjs --scenario=fixture --agents=claude,codex --command=open-computer-use
node ./scripts/run-agent-smoke-tests.mjs --scenario=fixture-full --agents=claude,codex --command=open-computer-use
OPEN_COMPUTER_USE_HERMES_PROVIDER=anthropic OPEN_COMPUTER_USE_HERMES_MODEL=claude-opus-4-20250514 make agent-smoke AGENTS=hermes SCENARIO=fixture-full
node ./scripts/run-agent-smoke-tests.mjs --agents=hermes --hermes-provider=anthropic --hermes-model=claude-opus-4-20250514
node ./scripts/run-agent-smoke-tests.mjs --scenario=fixture --agents=hermes --hermes-provider=anthropic --hermes-model=claude-opus-4-20250514
node ./scripts/run-agent-smoke-tests.mjs --scenario=fixture-full --agents=hermes --hermes-provider=anthropic --hermes-model=claude-opus-4-20250514 --hermes-max-turns=12
Show help
open-computer-use -h
ocu -h

ocu js closes its JavaScript Worker and native MCP child after one evaluation. ocu repl keeps them for the current terminal session until .exit, Ctrl-D, or termination; .reset clears its bindings. On macOS, the separate hidden Open Computer Use.app permission agent may remain resident so later commands reuse the same permission identity. ocu mcp continues to expose the nine core native tools, plus query on macOS.

The npm launcher itself currently requires Node.js 18 or newer. Its help always lists js / repl, while ocu capabilities --json reports whether Node, the REPL adapter/kernel, and the native runtime are available. Once started, it reuses the current Node executable instead of looking up another node on PATH.

ocu doctor --json (macOS only) returns platform, accessibilityTrusted, screenCaptureGranted, allGranted, and missingPermissions. Missing permissions still exit with code 0; hosts should check allGranted and query again after authorization. The snapshot uses existing system API/TCC diagnostics and does not prove an operation succeeded; some permission changes may still require a process restart.

Targeted query (macOS)

Find controls by text or role without taking a screenshot. See query usage.

Cursor Motion

Cursor Motion is an open-source cursor motion system for macOS, based on public information shared by members of the Software.Inc team. You can download the app from the Releases page.

License

MIT.

Persistent configuration

Use ocu config to inspect settings and ocu config set image.format jpg to persist a macOS screenshot preference. Environment overrides remain supported. See configuration (简体中文) for settings and CLI commands.