Title: OTP Authenticator
Author: Alexandre Froger
Published: <strong>August 22, 2020</strong>
Last modified: April 3, 2022

---

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![](https://ps.w.org/otp-authenticator/assets/banner-772x250.png?rev=2367162)

This plugin **hasn’t been tested with the latest 3 major releases of WordPress**.
It may no longer be maintained or supported and may have compatibility issues when
used with more recent versions of WordPress.

![](https://ps.w.org/otp-authenticator/assets/icon-256x256.png?rev=2367162)

# OTP Authenticator

 By [Alexandre Froger](https://profiles.wordpress.org/frogerme/)

[Download](https://downloads.wordpress.org/plugin/otp-authenticator.zip)

 * [Details](https://frp.wordpress.org/plugins/otp-authenticator/#description)
 * [Reviews](https://frp.wordpress.org/plugins/otp-authenticator/#reviews)
 *  [Installation](https://frp.wordpress.org/plugins/otp-authenticator/#installation)
 * [Development](https://frp.wordpress.org/plugins/otp-authenticator/#developers)

 [Support](https://wordpress.org/support/plugin/otp-authenticator/)

## Description

Add Two-Factor Authentication, Passwordless Authentication and Account Validation
to your WordPress website.

### Overview

This plugin adds the following major features to WordPress:

 * **3 One-Time Password modes**: Two-Factor Authentication, Passwordless Authentication
   and Account Validation.
 * **3 Authentication Gateways for OTP Verification Codes:** WordPress Email, Twilio
   SMS, Alibaba Cloud SMS ; all with option to use a sandbox mode.
 * **Two-Factor Authentication:** allow (or force) users to authenticate with a 
   second factor on top of their password.
 * **Passwordless Authentication:** allow users to login simply with their username,
   an identifier, and an OTP Verification Code (identifier depending on the Authentication
   Gateway – email or phone number supported with the default gateways).
 * **Account Validation:** force users to validate their account by entering an 
   OTP Verification Code at first login, on a set regular basis at login, or at 
   each login.
 * **Synchronize OTP identifiers with existing data:** wish to use Twilio SMS, but
   already have a phone number field saved in database? Perhaps with the “Billing
   Phone” in WooCommerce? Use this field by indicating its user meta key in the 
   gateway settings (Note: duplicate identifiers will require users to choose a 
   different one on update).
 * **Simple yet customizable appearance:** forms used to request OTP Verification
   Codes use a neutral dedicated style compatible with most themes, with customizable
   logo and call-to-action colors.
 * **Activity Logs:** when enabled, administrators can follow the activity of the
   enabled gateway. Critical messages regarding gateway malfunction are always logged.
 * **Customizable for developers:** developers can add their own gateways or add
   custom One-Time Password modes using action and filter hooks, and more – see 
   the [developers documentation](https://github.com/froger-me/otp-authenticator).
 * **Integration-friendly:** specific integration with Ultimate Member and WooCommerce
   is included by default ; developers can easily plug into OTP Authenticator with
   a multitude of functions, filter hooks and action hooks – see the [developers documentation](https://github.com/froger-me/otp-authenticator)–
   contributions to integrations are welcome.
 * **Unlimited features:** there are no premium version feature restrictions shenanigans–
   OTP Authenticator is fully-featured right out of the box.

### Troubleshooting

OTP Authenticator is regularly updated, and bug reports are welcome, preferably 
on [Github](https://github.com/froger-me/otp-authenticator/issues), especially for
advanced troubleshooting.

Each **bug** report will be addressed in a timely manner, but general inquiries 
and issues reported on the WordPress forum may take significantly longer to receive
a response.

**Only issues occurring with included integrated plugins (or plugin features), core
WordPress and default WordPress themes (incl. WooCommerce Storefront) will be considered
without compensation.**

**Troubleshooting involving 3rd-party plugins or themes will require compensation
in any case, and will not be addressed on the WordPress support forum**.

### Integrations

Although OTP Authenticator is designed to work out of the box with most combinations
of WordPress plugins and themes, there are some edge cases necessitating integration,
with code included in the core files of OTP Authenticator executing under certain
conditions.

Integrations added to core are limited to popular plugins and themes: any extra 
code specific to a handful of installations require a separate custom integration
plugin not shared with the community (decision at the discretion of the OTP Authenticator
plugin author).

If such need for plugin integration arises, website administrators may contact the
author of OTP Authenticator to become a patron.

**All integrations are to be funded by plugin users, with downpayment and delivery
payment, at the plugin author’s discretion, without exception**.
 The patron in 
return may be credited with their name (or company name) and a link to a page of
their choice in the plugin’s Changelog.

## Screenshots

 * [[
 * Two-Factor Authentication Form
 * [[
 * Passwordless Authentication Form
 * [[
 * Account Validation Form
 * [[
 * Set One-Time Password Identifier Form
 * [[
 * WordPress login with Passwordless Authentication link
 * [[
 * OTP Authenticator General Settings
 * [[
 * OTP Form Style Settings
 * [[
 * WordPress Email Authentication Gateway Settings
 * [[
 * Twilio Authentication Gateway Settings
 * [[
 * Alibaba Cloud SMS Authentication Gateway Settings
 * [[
 * Activity Logs

## Blocks

This plugin provides 1 block.

 *   OTPA 2FA Switch

## Installation

This section describes how to install the plugin and get it working.

 1. Upload the plugin files to the `/wp-content/plugins/otpa` directory, or install
    the plugin through the WordPress plugins screen directly for all websites to connect
    together
 2. Activate the plugin through the ‘Plugins’ screen in WordPress
 3. Edit plugin settings – follow on-screen help if necessary

## FAQ

### Where to find more help?

More help can be found on [the WordPress support forum](https://wordpress.org/support/plugin/otp-authenticator/)
for general inquiries and on [Github](https://github.com/froger-me/otp-authenticator)
for advanced troubleshooting, integration, and feature requests.

Help is provided without compensation for general enquiries and bug fixes only: 
feature requests, extra integration or conflict resolution with third-party themes
or plugins, and specific setup troubleshooting requests will not be addressed without
a fee (transfer method and amount at the discretion of the plugin author).

## Reviews

![](https://secure.gravatar.com/avatar/739ca563f5740c2b1d19d06353c2058c754a55c56c547277bf92136a761701b1?
s=60&d=retro&r=g)

### 󠀁[Simplest OTP Auth setup possible.](https://wordpress.org/support/topic/simplest-otp-auth-setup-possible/)󠁿

 [rabbitbuilder](https://profiles.wordpress.org/rabbitbuilder/) November 18, 2022

I don’t think it can get any better than this. Took me only 1 min to setup. Bravo
to the developers.

![](https://secure.gravatar.com/avatar/a39c88f45e860606c79031536a73447e6d3df766c5554d68763b91cb3fb7eaf8?
s=60&d=retro&r=g)

### 󠀁[All of my users hate this plugin](https://wordpress.org/support/topic/all-of-my-users-hate-this-plugin/)󠁿

 [ofihsdfoi](https://profiles.wordpress.org/ofihsdfoi/) November 17, 2022

The problem is it asks you to type in your email twice, and that just doesn’t make
sense for most people. Please add an option for the code to send automatically. 
Multiple of my users are just incapable of typing in the email twice.

![](https://secure.gravatar.com/avatar/f5cd16989fa4e43f10c71dbdc4ef13914b7fa3e95930be9eb8f3699df5ebe0c4?
s=60&d=retro&r=g)

### 󠀁[Great plugin! First of its kind!](https://wordpress.org/support/topic/great-plugin-first-of-its-kind/)󠁿

 [shivchawla](https://profiles.wordpress.org/shivchawla/) December 14, 2020

Works very well!

 [ Read all 3 reviews ](https://wordpress.org/support/plugin/otp-authenticator/reviews/)

## Contributors & Developers

“OTP Authenticator” is open source software. The following people have contributed
to this plugin.

Contributors

 *   [ Alexandre Froger ](https://profiles.wordpress.org/frogerme/)

[Translate “OTP Authenticator” into your language.](https://translate.wordpress.org/projects/wp-plugins/otp-authenticator)

### Interested in development?

[Browse the code](https://plugins.trac.wordpress.org/browser/otp-authenticator/),
check out the [SVN repository](https://plugins.svn.wordpress.org/otp-authenticator/),
or subscribe to the [development log](https://plugins.trac.wordpress.org/log/otp-authenticator/)
by [RSS](https://plugins.trac.wordpress.org/log/otp-authenticator/?limit=100&mode=stop_on_copy&format=rss).

## Changelog

#### 1.1

 * Update Alibaba library
 * Add functin `otpa_is_email_gateway`
 * Fix bugs when using email gateway

#### 1.0

 * First version

## Meta

 *  Version **1.1**
 *  Last updated **4 years ago**
 *  Active installations **60+**
 *  WordPress version ** 4.9.5 or higher **
 *  Tested up to **5.5.18**
 *  PHP version ** 7.0 or higher **
 *  Language
 * [English (US)](https://wordpress.org/plugins/otp-authenticator/)
 * Tags
 * [2FA](https://frp.wordpress.org/plugins/tags/2fa/)[otp](https://frp.wordpress.org/plugins/tags/otp/)
   [passwordless login](https://frp.wordpress.org/plugins/tags/passwordless-login/)
 *  [Advanced View](https://frp.wordpress.org/plugins/otp-authenticator/advanced/)

## Ratings

 4.7 out of 5 stars.

 *  [  2 5-star reviews     ](https://wordpress.org/support/plugin/otp-authenticator/reviews/?filter=5)
 *  [  1 4-star review     ](https://wordpress.org/support/plugin/otp-authenticator/reviews/?filter=4)
 *  [  0 3-star reviews     ](https://wordpress.org/support/plugin/otp-authenticator/reviews/?filter=3)
 *  [  0 2-star reviews     ](https://wordpress.org/support/plugin/otp-authenticator/reviews/?filter=2)
 *  [  0 1-star reviews     ](https://wordpress.org/support/plugin/otp-authenticator/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/otp-authenticator/reviews/#new-post)

[See all reviews](https://wordpress.org/support/plugin/otp-authenticator/reviews/)

## Contributors

 *   [ Alexandre Froger ](https://profiles.wordpress.org/frogerme/)

## Support

Got something to say? Need help?

 [View support forum](https://wordpress.org/support/plugin/otp-authenticator/)