Get current page title

Get current page url

Get current page html

Evaluate javascript in page. To access the currently selected element in the Elements panel ($0), use get_inspected_element instead.

Get computed style of element

Get actual top element at target position

Capture screenshot

Get the element marked for MCP inspection. To mark an element: select it in the Elements panel, then run window.$0 = $0 in the DevTools console. Returns tag, id, classes, attributes, and outerHTML.

Get current debugger state: whether execution is paused, the pause reason, hit breakpoints, and the full call stack with file/line info.

Inspect variable values in a call frame scope. Only works when execution is paused. Use get_debugger_state first to find available frame indices.

Set a breakpoint at a URL + line number. Supports exact URL match or regex. Returns a breakpointId to use with remove_breakpoint.

Remove a breakpoint by its ID (obtained from set_breakpoint or list_breakpoints).

List all breakpoints set in this session.

Pause JavaScript execution immediately. After pausing, use get_debugger_state to inspect the call stack.

Resume JavaScript execution after a breakpoint or pause.

Execute the current line and pause at the next line (does not enter function calls). Returns the new call stack position.

Step into the function call on the current line. Returns the new call stack position.

Evaluate a JavaScript expression in the scope of a paused call frame. Unlike evaluate_js, this has access to local variables, closure variables, and the current this. Only works when execution is paused.

Step out of the current function and pause at the caller. Returns the new call stack position.

Return browser console messages and uncaught exceptions. Includes messages already visible in DevTools before this server connected, plus new output produced afterwards. Exceptions are reported with their full stack trace (source-mapped when available).