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diff --git a/plugins/otp/README.md b/plugins/otp/README.md
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+# otp plugin
+
+This plugin allows you to create one-time passwords using [`oathtool`](https://www.nongnu.org/oath-toolkit/man-oathtool.html),
+able to replace MFA devices. The oathtool key is kept in a GPG-encrypted file so the codes
+can only be generated by a user able to decrypt it.
+
+To use it, add `otp` to the plugins array in your zshrc file:
+```zsh
+plugins=(... otp)
+```
+
+Provided aliases:
+
+- `otp_add_device`: creates a new encrypted storage for an oathtool key and stores it
+  on the disk. For encrypting the key, it will ask for a GPG user ID (your GPG key's
+  email address). Then the OTP key needs to be pasted, followed by a CTRL+D character
+  inserted on an empty line.
+
+- `ot`: generates a MFA code based on the given key and copies it to the clipboard 
+  (on Linux it relies on xsel, on MacOS X it uses pbcopy instead).
+
+The plugin uses `$HOME/.otp` to store its internal files.
diff --git a/plugins/otp/otp.plugin.zsh b/plugins/otp/otp.plugin.zsh
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+export OTP_HOME=~/.otp
+mkdir -p $OTP_HOME
+
+function ot () {
+  if ! command -v oathtool > /dev/null 2>&1; then
+    echo "Note: you need to install oathtool or oath-toolkit, depending on your OS or distribution."
+    return 1
+  fi
+
+  if ! command -v gpg > /dev/null 2>&1; then
+    echo "Note: you need to install gpg and create an ID using 'gpg --gen-key', unless you have one already."
+    return 1
+  fi
+
+  COPY_CMD='true'
+
+  if [[ -z "$1" ]]; then
+    echo "usage: $0 <profile.name>"
+    return 1
+  elif [ ! -f $OTP_HOME/$1.otp.asc ]; then
+    echo "missing profile $1, you might need to create it first using otp_add_device"
+    return 1
+  else
+    totpkey=$(gpg --decrypt $OTP_HOME/$1.otp.asc)
+    oathtool --totp --b $totpkey | tee /dev/stderr | clipcopy
+  fi
+}
+
+function otp_add_device () {
+  if [[ "x$1" == "x" ]] then
+    echo "usage: $0 <profile.name>"
+    return 1
+  else
+    echo "Enter an email address attached to your GPG private key, then paste the secret configuration key followed by ^D"
+
+    rm -f $OTP_HOME/$1.otp.asc
+    gpg --armor --encrypt --output $OTP_HOME/$1.otp.asc /dev/stdin
+  fi
+}
+
+function otp_devices () {
+  reply=($(find $OTP_HOME -name \*.otp.asc | xargs basename -s .otp.asc))
+}
+
+compctl -K otp_devices ot