J-Link MCP

io.github.Klievan/jlink-mcp

Debug embedded firmware on real hardware: J-Link probes, Cortex-M faults, RTT logs, GDB.

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "jlink-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "jlink-mcp@0.8.0"
      ],
      "env": {
        "JLINK_DEVICE": "<your JLINK_DEVICE>"
      }
    }
  }
}
Environment variables
  • JLINK_DEVICErequiredTarget device name, exactly as J-Link spells it (e.g. nRF52840_XXAA, STM32F407VG). Use the search_devices tool to find it.

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
0.8.0
Registry
active
Published
10/26/2026

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