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@nagarjuna2002/ios-simulator-mcp

v0.2.0

Published

MCP server for safe iOS Simulator build, launch, screenshot, and app-control workflows

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Links

Git

Maintainers

nagarjuna2002nagarjuna2002

Keywords

mcpiossimulatorxcodeswiftuivisual-testing

Readme

iOS Simulator runtime and sidebar preview

Published as @nagarjuna2002/[email protected]. Requires a Mac with full Xcode and an installed iOS Simulator runtime. The unscoped npm package is a different project.

Run as a local MCP server:

npx -y @nagarjuna2002/[email protected]

Call simulator_environment to discover actual device support, simulator_list to select a UDID, and simulator_show to boot/wait/open it. Build, install and launch the app, then call simulator_preview_start and open the returned URL in your browser/sidebar. Use simulator_preview_stop to close it.

For a booted device, start the viewer directly:

npx -y @nagarjuna2002/[email protected] --viewer DEVICE-UDID

The viewer refreshes screenshots. Touch and keyboard interaction happen in the native Simulator window. It binds only to loopback, uses a private URL token, and has no HTTP app-control endpoints. It is not a cloud-hosted simulator. Stop with Ctrl-C; closing a viewer does not shut down its device.

The 14 MCP tools cover environment/device discovery, native window display, preview start/stop, boot/shutdown, project build/tests, app install/launch/termination, deep links and screenshots. screenshot can optionally return a PNG image with includeImage: true; by default it reports the saved file. No tool erases a device. No runtime or Xcode download happens automatically.

Duo profiles are discovered from installed Xcode, not hardcoded. Apple described Duo Device Hub support as upcoming on September 9, 2026; inspect your local environment before claiming support.

Full workflow and client configuration: simulator guide. Current Duo guidance: iPhone Duo.

From source, run npm ci, npm run build, npm test, then node dist/index.js. Unit tests exercise fake command runners and a real loopback viewer; actual Xcode/device evidence must be reported separately.