sigrok-mcp-server

An MCP (Model Context Protocol) server that wraps sigrok-cli, exposing sigrok's signal analysis capabilities to LLMs.

It translates MCP tool calls into sigrok-cli invocations and returns structured JSON results, enabling LLMs to query logic analyzers, decode protocols, and analyze signals.

What can it do?

• Discover hardware — Scan for connected logic analyzers, oscilloscopes, and multimeters
• Capture data — Acquire signal data from devices and save to files
• Decode protocols — Analyze captured data with 100+ protocol decoders (UART, SPI, I2C, etc.)
• Query instruments — Send SCPI commands directly to serial-attached instruments
• Browse capabilities — List supported drivers, decoders, and file formats

Available Tools

Tool	Description
list_supported_hardware	List all supported hardware drivers
list_supported_decoders	List all supported protocol decoders
list_input_formats	List all supported input file formats
list_output_formats	List all supported output file formats
show_decoder_details	Show detailed info about a protocol decoder
show_driver_details	Show detailed info about a hardware driver
show_version	Show sigrok-cli and library version info
scan_devices	Scan for connected hardware devices
capture_data	Capture data from a device and save to file
decode_protocol	Decode protocol data from a captured file
check_firmware_status	Check firmware file availability
serial_query	Send commands over a serial port
get_device_profile	Look up device profiles and connection settings

Quick Example

A typical signal analysis workflow with an LLM:

1. Discover — scan_devices to find connected hardware
2. Inspect — show_driver_details to check driver capabilities
3. Capture — capture_data to acquire signal data
4. Decode — decode_protocol to analyze with protocol decoders
5. Understand — The LLM interprets decoded output and explains the communication

Getting Started

See the Installation guide to get up and running.