scriptedalchemy/devtools-debugger-mcp
An MCP server that provides comprehensive Node.js debugging capabilities using the Chrome DevTools Protocol. This server enables AI assistants to debug Node.js applications with full access to breakpoints, stepping, variable inspection, call stacks, expression evaluation, and source maps.
See repository
Setup steps are in the repository README.
Full Node.js debugger: Set breakpoints, conditional breakpoints, logpoints, and pause-on-exceptions
Stepping controls: Step over/into/out, continue to location, restart frame
Variable inspection: Explore locals/closure scopes, this preview, and drill down into object properties
Expression evaluation: Evaluate JavaScript expressions in the current call frame with console output capture
Call stack analysis: Inspect call stacks and pause-state information
Source map support: Debug TypeScript and other transpiled code with full source map support
Console monitoring: Capture and review console output during debugging sessions
start_node_debug
Launch a Node.js script with debugging enabled
stop_debug_session
Terminate the debugging session and clean up
set_breakpoint
Set a breakpoint at a specific file and line
set_breakpoint_condition
Set a conditional breakpoint or breakpoint by URL regex
add_logpoint
Add a logpoint that logs messages when hit
set_exception_breakpoints
Configure pause-on-exception behavior
resume_execution
Continue execution to the next breakpoint or completion
step_over
Step over the current line
step_into
Step into function calls
step_out
Step out of the current function
continue_to_location
Run until reaching a specific location
restart_frame
Restart execution from a specific call frame
inspect_scopes
Examine local variables, closures, and this context
evaluate_expression
Evaluate JavaScript expressions in the current context
get_object_properties
Drill down into object properties
list_call_stack
View the current call stack
get_pause_info
Get information about the current pause state
get_script_source
Retrieve source code for scripts
blackbox_scripts
Configure scripts to skip during debugging
read_console
Read console output captured during debugging
Details on this page are taken from the project's README. Open README
Clients mentioned in this server's README:
Desktop · Freemium · MIT
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