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Sigrok MCP server

by daedalus·io.github.daedalus/mcp-sigrok·v0.1.0·2 stars
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MCP server exposing sigrok-cli functionality for logic analyzer hardware and protocol decoding

B82/100grade B
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Safety scan
B82/100

full report

Adoption
New

2 stars16 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

Sigrok tools (13)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • capture

    Capture samples from hardware.

  • capture_for_time

    Capture data for specified duration.

  • list_hardware_drivers

    List available hardware drivers.

  • list_input_file_formats

    List supported input file formats.

  • list_output_file_formats

    List supported output file formats.

  • list_protocol_decoders

    List available protocol decoders.

  • list_supported

    List all supported hardware drivers, file formats, and protocol decoders.

  • load_file

    Load and process input file.

  • scan_for_devices

    Scan for detectable hardware devices.

  • set_config

    Set driver configuration without acquisition.

  • show_decoder_docs

    Show protocol decoder documentation.

  • show_device_info

    Show device information for a driver.

  • version

    Get sigrok-cli version information.

Public scan report

scanner v0.1.9 · 2026-09-27 · same rubric, same numbers if you re-run it

no findings
  • Code scan4 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 163 days ago8/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 82/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Sigrok compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
82/100
higher than 63% of 48,273 servers
Tools
13
the typical server has 7
Tools that change things
0%
typical: 0%. Fewer write tools means less an agent can break
GitHub stars
2
more than 75% of 28,534 servers
Downloads a week
16
more than 4% of 11,915 servers with a package

What its tools let an agent do: 12 read · 1 change

Install Sigrok in Claude Code, Cursor or VS Code

claude mcp add mcp-sigrok -- uvx mcp-sigrok
Add to Cursor

What the publisher says

From the Sigrok repository's README, as published. We do not edit it. Read it on GitHub

mcp-sigrok — MCP server for sigrok-cli

MCP server that exposes all functionality of sigrok-cli as MCP tools. sigrok-cli is a cross-platform command-line utility for the sigrok software suite, used for hardware initialization, acquisition, protocol decoding, and saving logic analyzer sessions.

Install

pip install mcp-sigrok

Requirements

  • sigrok-cli must be installed on the system

Installing sigrok-cli

Debian/Ubuntu:

sudo apt install sigrok-cli

macOS:

brew install sigrok-cli

From source:

git clone git://sigrok.org/sigrok-cli
cd sigrok-cli
./autogen.sh
./configure
make
sudo make install

Usage

As MCP Server

# Run as stdio MCP server
mcp-sigrok

Or configure in your MCP settings:

{
  "mcpServers": {
    "sigrok": {
      "command": "mcp-sigrok"
    }
  }
}

Python API

from mcp_sigrok import (
    check_sigrok_cli,
    get_version,
    list_drivers,
    scan_devices,
    capture_samples,
    load_input_file,
)

# Check if sigrok-cli is available
if cli_path := check_sigrok_cli():
    print(f"Found sigrok-cli at: {cli_path}")

# Get version info
info = get_version()

# List available drivers
drivers = list_drivers()

# Scan for devices
devices = scan_devices()

# Capture samples
result = capture_samples("fx2lafw", samples=1000)

MCP Tools

Examples

Capture from logic analyzer

# Capture 1000 samples from fx2lafw device
result = capture(
    driver="fx2lafw",
    samples=1000,
    channels="0-7",
    output_format="hex"
)

Decode I2C protocol

# Load capture file and decode I2C
result = load_file(
    input_file="capture.sr",
    protocol_decoders="i2c",
    output_file="decoded.txt"
)

Scan for devices

# Find available devices
devices = scan_for_devices()
for device in devices.get("devices", []):
    print(f"Found: {device}")

Development

git clone https://github.com/daedalus/mcp-sigrok.git
cd mcp-sigrok
pip install -e ".[test]"

# run tests
pytest

# format
ruff format src/ tests/

# lint
ruff check src/ tests/

# type check
mypy src/

mcp-name: io.github.daedalus/mcp-sigrok

Nothing above is checked by us. What we check is on the safety report.

Sigrok: common questions

Is Sigrok MCP server safe?
Mostly: it is graded B (82/100). Read the Sigrok safety report
How do I install Sigrok?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Sigrok need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Sigrok maintained?
The last commit was 198 days ago (2026-04-17). The latest release is v0.1.0.
How does Sigrok compare with other MCP servers?
safety score 82/100 (higher than 63% of 48,273 servers); tools 13 (the typical server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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