yehudah

A unique anti-spam solution to help you fight spam in registration, comments, forms (Contact Form 7). 
When the user comment or using contact form 7 his comments or message will not sent or be visible until 
the user will press a unique link sent to him when he submited his message.
<h4>For Example:</h4>
Think like this i’m a spammer registering to your site, after register to your site i see a message about 
the need to activate my account, if i used fake email address this address will be blocked because it’s never 
activated, if i used a real address i activated my account with success ! 
Now i would like to change my email address so i can spam without getting any messages from your site but oops 
i can’t change my email address because the plugin blocking it ! 
Ok let’s try my luck and start spam in the commnets, posting my first comment and getting a message: 
“to see the comment you must approve your comment by pressing the link in your email address”.
I think you got the idea but what would happen if i will not press it the email and the ip address will be blocked because no one press the link, if i did press the link in the second on the third time YOU as site admin can block 
his ip and email address manually in the plugin options.
Plugin Features:
<ul>
<li>User activation by email.</li>
<li>Block user from changing is email address – EVEN BY ROLE !</li>
<li>Protect from spam commnets by sending unique url approve to the user email address – EVEN BY ROLE !</li>
<li>Auto learn mode – unverify users or comments will be deleted after time interval you choose.</li>
<li>Recaptcha protection for registration.</li>
<li>Recaptcha protection for login.</li>
<li>Recaptcha protection for commnets – EVEN BY ROLE.</li>
<li>Ban user from register or comment by ip or email.</li>
<li>Customise email notification to the users.</li>
<li>Import and export option to save plugin settings.</li>
</ul>

WASP – Anti Spam

A unique anti-spam solution to help you fight spam in registration, comments, forms (Contact Form 7).

<h3>Features</h3>
<ul>
<li>Envato oAuth button in registration form</li>
<li>AwesomeSupport integration for Envato products</li>
<li>Activation API for themes and plugins developers</li>
</ul>
<h3>Activation themes/plugins for developers</h3>
<ol>
<li>Fill settings in wp_admin > Vatomi > Settings > Envato Settings</li>
<li>Create Licenses page in wp_admin > Vatomi > Settings > Licenses</li>
<li>
Use these links to let users activate your theme/plugin:
<ul>
<li>
Activate
<pre><code><a href="<?php echo esc_attr( 'https://{YOUR_SITE}/licenses/?vatomi_item_id={ITEM_ID}&vatomi_action=activate&vatomi_site=' . urlencode( home_url( '/' ) ) . '&vatomi_redirect=' . urlencode( admin_url( 'admin.php?page={YOUR_THEME_PAGE}' ) ) ); ?>" class="button button-primary">Activate</a>
</code></pre>
After button clicked, user will be redirected back to their site on the page <code>admin_url( 'admin.php?page={YOUR_THEME_PAGE}' )</code> with available GET variables, that you can use:
<ul>
<li>vatomi_action (activate, deactivate)</li>
<li>vatomi_item_id (item ID)</li>
<li>vatomi_license_code (Envato purchase code)</li>
</ul>
</li>
<li>
Deactivate
<pre><code><a href="<?php echo esc_attr( 'https://{YOUR_SITE}/licenses/?vatomi_item_id={ITEM_ID}&vatomi_action=deactivate&vatomi_license={PURCHASE_CODE}&vatomi_redirect=' . urlencode( admin_url( 'admin.php?page={YOUR_THEME_PAGE}' ) ) ); ?>" class="button button-primary">Deactivate</a>
</code></pre>
After button clicked, user will be redirected back to their site on the page <code>admin_url( 'admin.php?page={YOUR_THEME_PAGE}' )</code> with available GET variables, that you can use:
<ul>
<li>vatomi_action (activate, deactivate)</li>
<li>vatomi_item_id (item ID)</li>
<li>vatomi_license_code (Envato purchase code)</li>
</ul>
</li>
</ul>
</li>
</ol>
After theme/plugin activated, you will be able to use Vatomi API:
<ul>
<li>
Get URL to ZIP file:
<pre><code>https://{YOUR_SITE}/wp-json/vatomi/v1/envato/item_wp_url/{ITEM_ID}?license={PURCHASE_CODE}&site={ACTIVATED_SITE_ADDRESS}
</code></pre>
</li>
<li>
Get item current version number:
<pre><code>https://{YOUR_SITE}/wp-json/vatomi/v1/envato/item_version/{ITEM_ID}
</code></pre>
</li>
<li>
Check valid purchase code (if user purchased item from you):
<pre><code>https://{YOUR_SITE}/wp-json/vatomi/v1/envato/check_license/{PURCHASE_CODE}
</code></pre>
</li>
</ul>

Vatomi

Envato oAuth registration. Support Envato customers users with AwesomeSupport plugin.

WASP – Anti Spam vs Vatomi