Custom WordPress Integration: Paid Memberships Pro + CoinPayments (Adult Site)

I’m looking for an experienced WordPress/PHP developer to build a custom payment gateway for Paid Memberships Pro integrated with CoinPayments.net for a legal adult content website.

Scope of work:

Integrate CoinPayments API to create crypto checkout for PMPro subscriptions

Support new subscriptions and recurring payments (where supported)

Handle CoinPayments IPN/webhooks for:

payment confirmed

payment failed / expired

refunds (if applicable)

Sync payment events with PMPro membership status in real time

Admin settings for API keys, test/live mode, and basic logs

Follow PMPro gateway class structure (clean install/update)

Acceptance criteria:

I can enable the gateway in PMPro, enter API keys, and complete a full checkout in test mode.

On payment confirmation, the user’s membership is activated immediately.

On failed/expired payment, access is not granted and status is logged.

Webhook events are logged for debugging.

Clean, documented code delivered as a plugin.

Notes:

This is an adult website (18+). If you’re not comfortable with this, please don’t apply.

Please share examples of previous payment gateway or PMPro/WooCommerce integrations (crypto or fiat).