---
name: "u2f-host"
section: "1"
platform: "linux"
package: "u2f-host"
version: "1.1.10-3.2+b1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/u2f-host"
---

# u2f-host(1)

Yubico Universal 2nd Factor (U2F) Host Tool

## NAME

u2f-host - Yubico Universal 2nd Factor (U2F) Host Tool

## SYNOPSIS

**u2f-host** \[*OPTIONS*\]...

## DESCRIPTION

u2f-host 1.1.10

Perform U2F host-side operations on the command line. Reads challenge from standard input and writes a response to standard output.

- **-h**, **--help**

  Print help and exit

- **-V**, **--version**

  Print version and exit

- **-o**, **--origin**=*STRING*

  Origin URL to use.

- **-a**, **--action**=*ENUM*

  Action to take.  (possible values="register", "authenticate", "sendrecv")

- **-t**, **--touch**

  Invert user-presence flag (on by default) (default=off)

- **-d**, **--debug**

  Print debug information to standard error (default=off)

- **-c**, **--command**=*STRING*

  Command for sendrecv action

## REPORTING BUGS

Report bugs at \<https://github.com/Yubico/libu2f-host\>.