Cozmoslabs

Cristian Antohe

Chris Martens

Transform your WordPress login experience with passwordless authentication. Users simply enter their email address and receive a secure magic link – click to login instantly. It’s more secure than weak passwords and infinitely more user-friendly.
<h4>Why Choose Keyless Auth?</h4>
<ul>
<li>Enhanced Security: No more weak, reused, or compromised passwords</li>
<li>Better User Experience: One click instead of remembering complex passwords</li>
<li>Reduced Support: Eliminate “forgot password” requests</li>
<li>Modern Authentication: Enterprise-grade security used by Slack, Medium, and others</li>
<li>Security Hardening: Built-in protection against brute force attacks and username enumeration</li>
</ul>
<h4>Quick Start</h4>
<ol>
<li>Install and activate the plugin</li>
<li>Create a new page and add the shortcode <code>[keyless-auth]</code></li>
<li>Configure email templates in Keyless Auth → Templates</li>
<li>Done! Users can now login passwordlessly</li>
</ol>
<h4>Core Features</h4>
Ready to Use 
* Magic Link Authentication – Secure, one-time login links via email 
* Two-Factor Authentication (2FA) – Complete TOTP support with Google Authenticator 
* Role-Based 2FA – Require 2FA for specific user roles (admins, editors, etc.) 
* Custom 2FA Setup URLs – Direct users to branded frontend 2FA setup pages 
* SMTP Integration – Reliable email delivery through your mail server 
* Email Templates – Professional, customizable login emails 
* Mail Logging – Track all sent emails with delivery status 
* Custom Database Tables – Scalable architecture with dedicated audit logs
Advanced Security 
* Token Security: 10-minute expiration, single-use tokens 
* Audit Logging: IP addresses, device types, login attempts 
* Emergency Mode: Grace period system with admin controls 
* Secure Storage: SMTP credentials in wp-config.php option 
* XML-RPC Disable: Block brute force attacks via XML-RPC interface 
* Application Passwords Control: Disable programmatic authentication when not needed 
* User Enumeration Prevention: Block username discovery attacks
Customization 
* WYSIWYG Email Editor: Full HTML support with live preview 
* Advanced Color Controls: Hex, RGB, HSL color formats 
* Template System: German, English, and custom templates 
* Branding Options: Custom sender names and professional styling
<h4>Installation & Setup</h4>
Basic Installation 
1. WordPress Admin → Plugins → Add New 
2. Search for “Keyless Auth” 
3. Install and activate 
4. Add [keyless-auth] shortcode to any page
SMTP Configuration (Recommended) 
1. Navigate to Keyless Auth → SMTP 
2. Configure your email provider (Gmail, Outlook, SendGrid, etc.) 
3. Test email delivery 
4. Save settings
Two-Factor Authentication Setup 
1. Go to Keyless Auth → Options 
2. Enable “Two-Factor Authentication” 
3. Select required user roles 
4. Users scan QR code with authenticator app
<h4>Email Templates</h4>
Template Options 
* German Professional: Sleek German-language template 
* English Simple: Clean, minimalist design 
* Custom HTML: Create your own with WYSIWYG editor
Customization Features 
* Full HTML and CSS support 
* Color picker for buttons and links 
* Responsive email design 
* Live template preview 
* Placeholder system for dynamic content
<h4>Security & Compliance</h4>
Token Security 
* Generated using WordPress security standards 
* Based on user ID, timestamp, and wp-config.php salt 
* 10-minute expiration with single-use enforcement 
* Secure database storage with automatic cleanup
Two-Factor Authentication 
* TOTP-based system compatible with Google Authenticator, Authy 
* Role-based requirements for granular control 
* Grace period system for smooth user transitions 
* Custom verification forms with professional styling
Database Architecture 
* Custom tables for optimal performance 
* Comprehensive audit logging 
* Device tracking and IP monitoring 
* Automatic maintenance and cleanup routines
<h4>Security Hardening</h4>
Keyless Auth includes comprehensive security hardening features to protect your WordPress site from common attack vectors. All features are optional and can be enabled based on your site’s needs.
XML-RPC Disable 
* Prevents brute force attacks via WordPress XML-RPC interface 
* Reduces attack surface by disabling legacy API 
* Recommended for sites not using Jetpack, mobile apps, or pingbacks
Application Passwords Control 
* Disable REST API and XML-RPC authentication when programmatic access isn’t needed 
* Prevents unauthorized API access 
* Recommended for simple sites without third-party integrations
User Enumeration Prevention 
* Blocks REST API user endpoints (<code>/wp-json/wp/v2/users</code>) 
* Redirects author archives and <code>?author=N</code> queries 
* Removes login error messages that reveal usernames 
* Strips comment author CSS classes 
* Removes author data from oEmbed responses 
* Recommended for business/corporate sites without author profiles
Benefits 
* Combined protection against brute force attacks 
* Prevents username discovery for targeted attacks 
* Reduces unauthorized API access 
* Easy to configure without code or .htaccess modifications 
* All features include comprehensive documentation 
* FTP recovery available if needed
<h4>SMTP & Email Delivery</h4>
Supported Providers 
* Gmail / Google Workspace 
* Outlook / Microsoft 365 
* Mailgun, SendGrid, Amazon SES 
* Any SMTP-compatible service
Advanced Email Features 
* Message-ID domain alignment for deliverability 
* SPF/DKIM/DMARC compliance 
* Custom sender names and addresses 
* Bulk email log management 
* Delivery status tracking
Secure Credential Storage 
Store SMTP credentials securely in wp-config.php:
<pre><code>define('CHRMRTNS_KLA_SMTP_USERNAME', 'your-email@example.com');
define('CHRMRTNS_KLA_SMTP_PASSWORD', 'your-smtp-password');
</code></pre>
<h4>WordPress Integration</h4>
Login Page Integration 
* Optional magic login field on wp-login.php 
* Seamless integration with existing login flow 
* Toggle control for easy enable/disable 
* Clean, responsive form styling
Shortcode Usage 
Use <code>[keyless-auth]</code> anywhere: pages, posts, widgets, or custom templates.
<h4>Developer Features</h4>
Hooks & Filters
Customize login redirect: 
 add_filter(‘wpa_after_login_redirect’, ‘custom_redirect_function’);
Modify email headers: 
 add_filter(‘wpa_email_headers’, ‘custom_email_headers’);
Change token expiration: 
 add_filter(‘wpa_change_link_expiration’, ‘custom_expiration_time’);
Modular Architecture 
* Clean, organized class structure 
* Separated concerns for easy maintenance 
* WordPress coding standards compliance 
* Extensive documentation and comments
<h4>Requirements</h4>
<ul>
<li>WordPress: 3.9 or higher (tested up to 6.8)</li>
<li>PHP: 7.4 or higher</li>
<li>Email Delivery: SMTP recommended for reliability</li>
</ul>
Note: Keyless Auth complements WordPress’s default login system – it doesn’t replace it.
Developed by Chris Martens | Based on the original Passwordless Login plugin by Cozmoslabs

Keyless Auth – Login without Passwords

Secure, passwordless authentication for WordPress. Your users login via magic email links – no passwords to remember or forget.

Denis Alemán

Login Links allows you to create temporary, password-less access links for existing users or guest accounts. The links can be configured to expire either after a certain period of time or after a set number of successful logins.
<h3>How Login Link Works</h3>
A login link is a special link that, when clicked, automatically logs the user in. They don’t need an account. The login occurs either under an existing account or under a temporary account created specifically for this link. The link has an expiration date, after which it is automatically deleted.
<h3>Provide Temporary Access</h3>
Create a login link with a specific role for support teams, clients, developers, or guest users who need temporary access to the site, and email it directly to them. They don’t need to create an account or come up with a password, and you won’t have to worry about deleting their account later.
<h3>Passwordless Access for Users</h3>
Allow already registered users to log in without a password. Users request a one-time login link by entering the email they used during registration, and the link is sent to that email.
<h3>Features</h3>
<h3>Temporary Login Links</h3>
<ul>
<li>Create an unlimited number of temporary login links.</li>
<li>Choose to log in as an existing user or as a temporary user, which will automatically create a temporary account attached to the link.</li>
<li>Delete and manage created links through a table interface, allowing you to view and remove links as needed.</li>
<li>Set expiration limits for each login link based on time or number of logins.</li>
<li>Expiration can be based on the number of logins, time, or a combination of both, whichever occurs first.</li>
<li>Send an email invitation with a login link.</li>
<li>Customize the email’s body and subject text.</li>
</ul>
<h3>Password-less Access</h3>
<ul>
<li>Allow password-less access for your users.</li>
<li>Custom login form via shortcode for password-less access.</li>
<li>Automatic deletion of expired links.</li>
<li>Automatic generation of a temporary account with a designated role upon link creation.</li>
<li>Optional password-less access through the standard WordPress login form.</li>
<li>Ability to disallow password-based access.</li>
</ul>

Login Links – Passwordless Login, Temporary Access Links & Custom Login Form


i tried two other plugins and they were limited to creating links for new users only. This worked great for my use case of sending creds to a client I had already created an account for. 



i think the popup modal with the new link might need some style adjustments on mobile devices. It was tricky to copy the entire link. A copy button would be a help... It might have been there just couldn't see the full width of the modal on my phone.


creates links for existing users

Create secure self-expiring login links for temporary access and guest users, and enable passwordless login for registered ones.

Keyless Auth – Login without Passwords vs Login Links – Passwordless Login, Temporary Access Links & Custom Login Form