onlykey-agent

Install command: 
brew install onlykey-agent

Middleware that lets you use OnlyKey as a hardware SSH/GPG device

https://docs.crp.to/onlykey-agent.html

License: LGPL-3.0-only

Development: Pull requests

Formula JSON API: /api/formula/onlykey-agent.json

Formula code: onlykey-agent.rb on GitHub

Bottle (binary package) installation support provided for:

macOS on
Apple Silicon		 tahoe ✅
sequoia ✅
sonoma ✅
macOS on
Intel		 sonoma ✅
Linux ARM64 ✅
x86_64 ✅

Current versions:

stable ✅ 1.1.15

Revision: 13

Depends on:

certifi 2026.7.22 Mozilla CA bundle for Python
cryptography 50.0.0 Cryptographic recipes and primitives for Python
gnupg 2.5.21 GNU Privacy Guard (OpenPGP)
hidapi 0.15.0 Library for communicating with USB and Bluetooth HID devices
libsodium 1.0.22 NaCl networking and cryptography library
libusb 1.0.30 Library for USB device access
python@3.14 3.14.7 Interpreted, interactive, object-oriented programming language

Depends on when building from source:

pkgconf 3.0.5 Package compiler and linker metadata toolkit

Known vulnerabilities in the current version:

GHSA-wj6h-64fc-37mp (high) Minerva timing attack on P-256 in python-ecdsa
GHSA-h35f-9h28-mq5c (medium) setuptools: MANIFEST.in exclusion bypass in sdist via Unicode normalization collision (NFC/NFD) o...

Data from Homebrew/advisory-database. Run brew vulns onlykey-agent for a live check.

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Installs2469387
Installs on Request2469387
Build Errors0