Embedded Debugger MCP Server

Debug embedded systems (ARM Cortex-M, RISC-V) from AI assistants via probe-rs.

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stdio (local)

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Stale

Rust

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Add to your client

Copy the config for your MCP client and paste it into its config file.

Install / run

git clone https://github.com/adancurusul/embedded-debugger-mcp.git && cd embedded-debugger-mcp && cargo build --release

Paste into ~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "embedded-debugger-mcp-server": {
      "command": "/path/to/debugger-mcp-rs/target/release/embedded-debugger-mcp",
      "args": [],
      "env": {
        "RUST_LOG": "info"
      }
    }
  }
}

Step-by-step guides: Add to Claude Desktop · Add to Cursor · Add to Windsurf

Before you start

Rust 1.70+ to build from source
A probe-rs compatible debug probe (ST-Link V2/V3, J-Link, or DAPLink) with drivers installed
A supported target board (e.g. STM32 microcontroller)
USB connection to the probe and target board

About Embedded Debugger MCP Server

An MCP server that bridges AI assistants to embedded debug hardware through probe-rs. It provides 22 tools for probe discovery and connection, memory operations, debug control, breakpoints, flash programming, RTT communication, and session management. Supports ARM Cortex-M (M0/M0+/M3/M4/M7/M23/M33), RISC-V cores, and basic ARM Cortex-A, across J-Link, ST-Link, DAPLink, Black Magic Probe, and FTDI probes. Tested end-to-end with an STM32G431CBTx board and ST-Link V2.

Tools & capabilities (22)

list_probes

Discover available debug probes on the system.

connect

Connect to a probe and target chip.

probe_info

Get detailed session information.

read_memory

Read flash/RAM with multiple data formats.

write_memory

Write to target memory.

halt

Stop target execution.

run

Resume target execution.

reset

Perform a hardware or software reset.

step

Single instruction stepping.

set_breakpoint

Set hardware or software breakpoints.

clear_breakpoint

Remove breakpoints.

flash_erase

Erase flash memory sectors or the whole chip.

flash_program

Program ELF/HEX/BIN files to flash.

flash_verify

Verify flash contents.

rtt_attach

Connect to RTT communication.

rtt_detach

Disconnect RTT.

rtt_channels

List available RTT channels.

rtt_read

Read from RTT up channels.

rtt_write

Write to RTT down channels.

run_firmware

Complete deployment plus RTT communication.

get_status

Get the current debug status.

disconnect

Cleanly terminate the session.

When to use it

Flashing firmware to an STM32 or other microcontroller and verifying the program from an AI assistant.
Inspecting and modifying target memory (flash/RAM) during debugging.
Controlling execution with halt/run/reset/step and managing breakpoints interactively.
Interactive bidirectional RTT communication — streaming live data and sending control commands to firmware.
Systematically testing debug workflows across probe management, memory, breakpoints, flash, and RTT.

Security notes

Runs as a local stdio process and controls real debug hardware (flash erase/program, memory write, target reset). Only connect it to probes and target boards you intend to expose to the AI assistant.

Embedded Debugger MCP Server FAQ

Which debug probes are supported?

J-Link (all variants), ST-Link V2/V3, ARM DAPLink-compatible probes, Black Magic Probe, and FTDI-based debug probes.

Which target architectures work?

ARM Cortex-M (M0, M0+, M3, M4, M7, M23, M33) and various RISC-V cores, with basic support for ARM Cortex-A.

Is there a prebuilt package?

No. The README documents building from source with cargo build --release; there is no npm or other registry package listed.

How does it connect to an MCP client?

Over stdio. You point the client (e.g. Claude Desktop) at the compiled embedded-debugger-mcp binary via a command entry in the mcpServers config.

#embedded #debugging #probe-rs #arm-cortex-m #risc-v #rtt #stm32 #rust

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