Peekaboo
a macOS-only MCP server that enables AI agents to capture screenshots of applications, or the entire system.
Peekaboo 🫣 - Mac automation that sees the screen and does the clicks.

Peekaboo brings high-fidelity screen capture, AI analysis, and complete GUI automation to macOS. Version 3 adds native agent flows and multi-screen automation across the CLI and MCP server.
What you get
- Pixel-accurate captures (windows, screens, menu bar) with optional Retina 2x scaling.
- Natural-language agent that chains Peekaboo tools (see, click, type, scroll, hotkey, menu, window, app, dock, space).
- Action-first UI automation for routine clicks/scrolls, with synthetic input fallback for apps that need it.
- Direct accessibility tools for settable values and named actions (
set-value,perform-action). - Menu and menubar discovery with structured JSON; no clicks required.
- Multi-provider AI: GPT-5.1 family, Claude 4.x, Grok 4-fast (vision), Gemini 2.5, and local Ollama models.
- MCP server for Codex, Claude Code, and Cursor plus a native CLI; the same tools in both.
- Configurable, testable workflows with reproducible sessions and strict typing.
- Requires macOS Screen Recording + Accessibility permissions (see docs/permissions.md).
Install
- macOS app + CLI (Homebrew):
brew install steipete/tap/peekaboo - MCP server (Node 22+, no global install needed):
npx -y @steipete/peekaboo
Quick start
# Capture full screen at Retina scale and save to Desktop
peekaboo image --mode screen --retina --path ~/Desktop/screen.png
# Click a button by label (captures, resolves, and clicks in one go)
peekaboo see --app Safari --json | jq -r '.data.snapshot_id' | read SNAPSHOT
peekaboo click --on "Reload this page" --snapshot "$SNAPSHOT"
# Directly set a text field value when the accessibility value is settable
peekaboo set-value --on T1 --value "hello" --snapshot "$SNAPSHOT"
# Invoke a named accessibility action on an element
peekaboo perform-action --on B1 --action AXPress --snapshot "$SNAPSHOT"
# Run a natural-language automation
peekaboo agent "Open Notes and create a TODO list with three items"
# Run as an MCP server (Codex, Claude Code, Cursor)
npx -y @steipete/peekaboo
# Minimal MCP client config snippet:
# {
# "mcpServers": {
# "peekaboo": {
# "command": "npx",
# "args": ["-y", "@steipete/peekaboo"],
# "env": {
# "PEEKABOO_AI_PROVIDERS": "openai/gpt-5.5,anthropic/claude-opus-4-7"
# }
# }
# }
# }
Shell completions
Peekaboo can generate shell-native completions directly from the same Commander metadata that powers CLI help and docs:
# Current shell (recommended)
eval "$(peekaboo completions $SHELL)"
# Explicit shells
eval "$(peekaboo completions zsh)"
eval "$(peekaboo completions bash)"
peekaboo completions fish | source
For persistent setup and troubleshooting, see docs/commands/completions.md.
| Command | Key flags / subcommands | What it does |
|---|---|---|
| see | --app, --mode screen/window, --retina, --json | Capture and annotate UI, return snapshot + element IDs |
| click | --on <id/query>, --snapshot, --wait-for, --coords | Click by element ID, label, or coordinates |
| type | --text, --clear, --profile, --delay | Enter text with pacing options |
| set-value | --on <id/query>, --value, --snapshot | Directly set a settable accessibility value |
| perform-action | --on <id/query>, --action, --snapshot | Invoke a named accessibility action |
| press | key names, --count, --delay, --hold | Special keys and sequences |
| hotkey | combos like cmd,shift,t | Modifier combos (cmd/ctrl/alt/shift) |
| scroll | --on <id>, --direction up/down, --amount | Scroll views or elements |
| swipe | --from/--to, --duration, --steps | Smooth gesture-style drags |
| drag | --from/--to, modifiers, Dock/Trash targets | Drag-and-drop between elements/coords |
| move | --to <id/coords>, --screen-index | Position the cursor without clicking |
| window | list, move, resize, focus, set-bounds | Move/resize/focus windows and Spaces |
| app | launch, quit, relaunch, switch, list | Launch, quit, relaunch, switch apps |
| space | list, switch, move-window | List or switch macOS Spaces |
| menu | list, list-all, click, click-extra | List/click app menus and extras |
| menubar | list, click | Target status-bar items by name/index |
| dock | launch, right-click, hide, show, list | Interact with Dock items |
| dialog | list, click, input, file, dismiss | Drive system dialogs (open/save/etc.) |
| image | --mode screen/window/menu, --retina, --analyze | Screenshot screen/window/menu bar (+analyze) |
| list | apps, windows, screens, menubar, permissions | Enumerate apps, windows, screens, permissions |
| tools | --verbose, --json, --no-sort | Inspect native Peekaboo tools |
| completions | [shell] | Generate zsh/bash/fish completion scripts from Commander metadata |
| config | init, show, add, login, models | Manage credentials/providers/settings |
| permissions | status, grant | Check/grant required macOS permissions |
| run | .peekaboo.json, --output, --no-fail-fast | Execute .peekaboo.json automation scripts |
| sleep | --duration (ms) | Millisecond delays between steps |
| clean | --all-snapshots, --older-than, --snapshot | Prune snapshots and caches |
| agent | --model, --dry-run, --resume, --max-steps, audio | Natural-language multi-step automation |
| mcp | serve (default) | Run Peekaboo as an MCP server |
Models and providers
- OpenAI: GPT-5.1 (default) and GPT-4.1/4o vision
- Anthropic: Claude 4.x
- xAI: Grok 4-fast reasoning + vision
- Google: Gemini 2.5 (pro/flash)
- Local: Ollama (llama3.3, llava, etc.)
Set providers via PEEKABOO_AI_PROVIDERS or peekaboo config add.
Learn more
- Command reference: docs/commands/
- Architecture: docs/ARCHITECTURE.md
- Building from source: docs/building.md
- Testing guide: docs/testing/tools.md
- MCP setup: docs/commands/mcp.md
- Permissions: docs/permissions.md
- Ollama/local models: docs/ollama.md
- Agent chat loop: docs/agent-chat.md
- Service API reference: docs/service-api-reference.md
Community
- PeekabooWin — Windows-first rewrite of the Peekaboo automation loop (JavaScript + PowerShell) by @FelixKruger
Development basics
- Requirements: macOS 15+, Xcode 16+/Swift 6.2. Node 22+ only if you run the pnpm docs/build helper scripts (core CLI/app/MCP are Swift-only).
- Install deps:
pnpm installthenpnpm run build:cliorpnpm run test:safe. - Lint/format:
pnpm run lint && pnpm run format.
License
MIT
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