Whop payment gateway: use Whop to take payments on WooCommerce

A Whop payment gateway for WooCommerce is a plugin that adds Whop as a payment method and passes each order to Whop for payment. WhopForWoo does this with Whop’s embedded checkout (Whop Elements), so the customer pays on your checkout page and your server confirms the payment with Whop before marking the order paid.

Whop gateway vs a classic gateway

Whop’s routing layer (“orchestration”, 0.8% when enabled) can send a payment through several processors. For you it stays one account, one balance, one dashboard. Full fee breakdown on Whop fees.

Payment methods through the gateway

On the embedded form WhopForWoo turns on cards, Apple Pay and Google Pay. Whop’s checkout can also show other methods depending on the buyer’s country and currency (ACH, PayPal, crypto, Klarna and other financing). One limit to know: Whop states that iDEAL only appears on the checkout opened from a Whop store or product page, not on direct checkout links or embedded checkouts.

Whop payment gateway API: what happens under the hood

WhopForWoo talks to api.whop.com with a dated API version header. For each order:

1. Create a checkout configuration for the exact order total, with the WooCommerce order ID, order key and site in its metadata. An idempotency key prevents duplicates if a request is retried.
2. Mount Whop Elements in the payment box. Card data is entered in Whop’s iframe; the browser never sends it to your server.
3. Read the payment back with GET /payments/{id} when the customer returns, and check order, site, checkout configuration, paid status, amount and currency.
4. Receive the webhook payment.succeeded, verified with HMAC-SHA256 (Standard Webhooks format), five-minute replay window, de-duplicated on webhook-id.
5. Complete the order once, under a per-order lock, whichever of steps 3 and 4 arrives first.

If the amounts don’t match, the order goes on hold with a note instead of being marked paid. The only other outbound call is to open.er-api.com for exchange rates when your store currency isn’t one of Whop’s 47 native currencies.

Your API key and webhook secret stay on the server: they’re never sent to the browser or written to logs.

More on the integration on Whop payment integration.

Setting it up

1. Install WhopForWoo and activate your licence.
2. In Whop, create an API key and note your Account ID.
3. In WooCommerce → Settings → Payments → Whop, paste both, then add the webhook URL to Whop and subscribe to payment.succeeded.
4. Choose Whop Elements (embedded) or hosted redirect.
5. Test with Sandbox mode, then go live.

Before payouts, Whop asks you to complete identity verification (KYC): personal details, bank account and an ID upload.