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eval

This tool on every surface: CLI · MCP · Python · JavaScript · Go · Java · .NET

Run a JavaScript expression in the current WebView and return its value as a string. These call app_eval.

eval​

def eval(expression: str) -> str

Run a JavaScript expression in the current WebView.

Objects come back as JSON.

Examples​

Read the page title in a WebView​

title = device.eval("document.title")
print(title)

On a device​

mobium eval document.title on an Android 15 emulator

mobium eval document.title on an Android 15 emulator