Marcin Wosinek

<p>Fair Payments Connector is the money layer of the Fair Event plugin suite. It handles Mollie payment processing, stores transactions with line items, and provides a ledger for budgets and bank-import reconciliation.</p>
<p>Features:</p>
<ul>
<li>Mollie payment gateway with test/live modes, application fees, and webhook handling</li>
<li>Transactions with itemized line items, linked to posts, event dates (fair-events), and participants (fair-audience)</li>
<li>Status lifecycle (<code>draft</code> <span aria-hidden="true" class="wp-exclude-emoji">→</span> <code>pending_payment</code> <span aria-hidden="true" class="wp-exclude-emoji">→</span> <code>paid</code>/<code>failed</code>) with action hooks (<code>fair_payment_paid</code>, etc.)</li>
<li>Proactive status sync to recover stuck pending payments</li>
<li>Budgets and financial entries ledger with split entries, event linkage, and import deduplication</li>
<li>Many-to-many reconciliation between bank-import entries and transactions</li>
<li>Token-authenticated data sharing API so satellite sites can pull their own transaction data from a hub site</li>
<li>Telegram notifications on payment events</li>
<li>Gutenberg “Simple Payment” block (amount, currency, description) for standalone use</li>
<li>Admin pages for transactions, budgets, entries, reconciliation, API tokens, connected sites, and settings</li>
</ul>
<p>Public PHP API for integration from other plugins:</p>
<ul>
<li><code>fair_payment_create_transaction( $line_items, $args )</code></li>
<li><code>fair_payment_initiate_payment( $transaction_id, $args )</code></li>
<li><code>fair_payment_get_transaction( $transaction_id )</code></li>
<li><code>fair_payment_sync_transaction_status( $transaction_id )</code></li>
</ul>
<h3>Development</h3>
<ul>
<li>GitHub Repository: https://github.com/marcin-wosinek/fair-event-plugins</li>
<li>Report Issues: https://github.com/marcin-wosinek/fair-event-plugins/issues</li>
<li>Contribute: https://github.com/marcin-wosinek/fair-event-plugins/pulls</li>
</ul>
<h3>External services</h3>
<p>This plugin relies on the following third-party services. Data is only sent to a service when you enable and configure the related feature.</p>
<h4>Mollie payment gateway (api.mollie.com)</h4>
<p>Used to process payments. When a customer initiates a payment through the plugin (for example by submitting the Simple Payment block, or when another plugin calls <code>fair_payment_initiate_payment()</code>), the plugin contacts the Mollie API to create the payment and later to retrieve its status (including via Mollie webhooks and periodic status sync). Data sent includes: payment amount and currency, description, redirect/webhook URLs of your site, customer billing email when provided, and your Mollie access token. Mollie is operated by Mollie B.V.</p>
<ul>
<li>Terms of service: https://www.mollie.com/legal/user-agreement</li>
<li>Privacy policy: https://www.mollie.com/legal/privacy</li>
</ul>
<h4>Fair Event Plugins OAuth proxy (fair-event-plugins.com)</h4>
<p>Used only if you connect Mollie through the built-in OAuth flow instead of pasting a personal API key. The plugin redirects you to <code>https://fair-event-plugins.com/oauth/authorize</code> to authorize access to your Mollie account, and later calls <code>https://fair-event-plugins.com/oauth/refresh</code> to refresh the Mollie access token when it expires. Data sent includes: the OAuth refresh token stored in your site and, during initial authorization, the parameters Mollie returns to the proxy. The proxy is operated by the plugin author (Marcin Wosinek) and exists because Mollie OAuth requires a registered client secret that cannot ship in a public plugin.</p>
<ul>
<li>Terms of service: https://fair-event-plugins.com/terms/</li>
<li>Privacy policy: https://fair-event-plugins.com/privacy/</li>
</ul>
<h4>Telegram Bot API (api.telegram.org)</h4>
<p>Used only if you configure a Telegram bot token and chat ID in the plugin settings to receive payment notifications. When a payment event occurs (such as a payment being marked as paid or failed), the plugin sends an HTTP request to <code>https://api.telegram.org/bot<token>/sendMessage</code> containing the notification text (transaction id, amount, status, and a link back to the admin transaction page) and the configured chat id. The Telegram Bot API is operated by Telegram FZ-LLC / Telegram Messenger Inc.</p>
<ul>
<li>Terms of service (Bot API): https://telegram.org/tos/bot-developers</li>
<li>Privacy policy: https://telegram.org/privacy</li>
</ul>
<h4>Other WordPress sites you connect (hub / satellite data sharing)</h4>
<p>If you use the connected-sites / data-sharing feature, the plugin will send authenticated REST requests to the WordPress site URLs you explicitly enter in the “Connected sites” admin page so it can pull transaction data. No data is sent to those sites unless you configure them yourself. There are no third-party terms for this feature — the remote endpoint is another WordPress site running this same plugin, under your control.</p>


Fair Payments Connector

Mollie-based payments and bookkeeping for WordPress events.

Pronamic

<p><a href="https://www.pronamicpay.com/" rel="nofollow ugc">Pronamic Pay</a> · <a href="https://www.pronamic.eu/" rel="nofollow ugc">Pronamic</a> · <a href="https://github.com/pronamic/pronamic-pay-with-mollie-for-ninja-forms" rel="nofollow ugc">GitHub</a></p>
<p>Accept payments with Mollie and Ninja Forms. This free plugin is all that you need to connect your Ninja Forms forms to Mollie. The installation is as easy as creating a form. Just add your form fields, choose a payment amount and add a list of the available payment methods from Mollie. You can choose which payment methods you want to embed in your form.</p>
<p><span class="embed-youtube" style="text-align:center; display: block;"><iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/Rsycvh7Sgvk?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe></span></p>
<h3>Features</h3>
<p>This plugin is developed from the idea that online payments should be easy. Some of the features:</p>
<ul>
<li>Easy install</li>
<li>Support for most major payment methods</li>
<li>Payment status pages</li>
<li>Automatic payment status updates via Mollie webhooks and the WordPress REST API</li>
<li>High quality support</li>
<li>Built by Pronamic</li>
</ul>
<h3>External services</h3>
<p>This plugin uses a number of external services to initiate payments. These are documented below with a link to the service’s Terms of Use.</p>
<h4>Mollie API</h4>
<p>This plugin provides the link between the forms plugin Ninja Forms and payment provider Mollie. To communicate with Mollie, this plugin connects to the Mollie API via <a href="https://api.mollie.com/" rel="nofollow ugc">https://api.mollie.com/</a>. The documentation for the Mollie API can be found at <a href="https://docs.mollie.com/" rel="nofollow ugc">https://docs.mollie.com/</a>, Mollie’s user agreement can be found at <a href="https://www.mollie.com/legal/user-agreement" rel="nofollow ugc">https://www.mollie.com/legal/user-agreement</a>. From your WordPress website, customer and payment data can be passed on to Mollie for setting up and processing payments.</p>
<h3>Pronamic Pay Premium</h3>
<p>With a Pronamic Pay Premium license, you get access to exceptional support and a range of exclusive benefits that take your payment experience to the next level.</p>
<h4>Premium support</h4>
<ul>
<li><strong>Fast and expert help</strong> from our team of specialists.</li>
<li><strong>Priority treatment</strong> for your support tickets.</li>
</ul>
<h4>Premium add-ons</h4>
<ul>
<li><strong>Pronamic Pay Fundraising Add-On</strong><br />
Easily create online fundraising and crowdfunding campaigns.</li>
<li><strong>Pronamic Pay Notification Add-On</strong><br />
Set up extensive notifications for payers and administrators.</li>
<li><strong>Pronamic Pay WP All Export Add-On</strong><br />
Export all your payment data with a few clicks.</li>
</ul>
<p>And much more!</p>
<p>Discover all the benefits of Pronamic Pay Premium at <a href="https://www.pronamicpay.com/" rel="nofollow ugc">https://www.pronamicpay.com/</a>.</p>
<p><strong>Upgrade to Pronamic Pay Premium now and take advantage of all the benefits!</strong></p>
<h3>Links</h3>
<ul>
<li><a href="https://www.pronamicpay.com/" rel="nofollow ugc">Pronamic Pay</a></li>
<li><a href="https://www.pronamic.eu/" rel="nofollow ugc">Pronamic</a></li>
</ul>


Pronamic Pay with Mollie for Ninja Forms


As a developer of the Pronamic Pay with Mollie for Ninja Forms plugin, I think this plugin is the best integration between Mollie and Ninja Forms. This plugin makes optimal use of, for example, the WordPress HTTP and REST API. The quality of the code is high, WordPress Coding Standards are strictly adhered to. In addition, Mollie users can count on the knowledge and experience of Pronamic, a Dutch WordPress development company. We are very proud of our support department, support issues are handled quickly and by WordPress developers/experts. If you also want to work with other solutions in addition to Mollie and/or Ninja Forms, Pronamic Pay is the answer. We support many other popular payment providers and WordPress plugins.


The best Mollie for Ninja Forms plugin

Connect Mollie to Ninja Forms with Pronamic Pay. This free plugin is all that you need to start selling with Ninja Forms.

Fair Payments Connector vs Pronamic Pay with Mollie for Ninja Forms