Slek Gateway for WooCommerce

Description

Accept payments from MPESA, PayPal, Stripe, Intasend, Flutterwave, Credit Cards, and Debit Cards via Slek.org. We host over 10 payment gateways, giving you the flexibility to shift between them at any time.

This plugin fully relies on services provided by Slek.org, where all payment gateways are securely hosted. It is a reliable, lightweight solution for your WooCommerce store.

With Slek Gateway for WooCommerce, you can accept:
* Credit/Debit Cards
* MPESA
* PayPal
* PayStack
* Stripe
* Authorize.net
* Intasend
* KopoKopo
* Flutterwave

Why use Slek?

  • Automated WhatsApp Invoices: Invoices are automatically sent to your customers via WhatsApp.
  • Instant Onboarding: Go from sign-up to your first transaction in as little as 2 minutes.
  • Custom Gateways: Connect your own gateways and receive payments directly.
  • Seamless Experience: Modern payment experience via the Slek Checkout.
  • Invoice PDF: Automatically sends invoice (PDF) to customer on order.

Sign up at slek.org/signup to get started. Please review our terms at https://slek.org/terms.

Configuration

  1. Navigate to WooCommerce > Settings and click the Payments tab.
  2. Find Slek Payment Gateway and click Manage or Set Up.
  3. Enable/Disable: Check to enable Slek on your checkout.
  4. Title & Description: Customize the text customers see during checkout.
  5. API Keys: Enter your Slek Key and Slek Secret from your dashboard.
  6. Checkout Fields: Select which billing fields to display to your customers.
  7. Click Save Changes.

Screenshots

  • The Slek Payment Invoice page.
  • Available Slek Payment Gateways.
  • Plugin configuration settings.

Installation

  1. Go to WordPress Admin > Plugins > Add New.
  2. Search for Slek Gateway for WooCommerce.
  3. Click Install Now and then Activate.
  4. Login to slek.org to retrieve your API keys.

FAQ

What do I need to use this plugin?

  • A Slek merchant account (create one at slek.org/signup).
  • An active WooCommerce installation.
  • A valid SSL Certificate for secure transactions.

Reviews

There are no reviews for this plugin.

Contributors & Developers

“Slek Gateway for WooCommerce” is open source software. The following people have contributed to this plugin.

Contributors

Changelog

1.1 – Feb 21, 2026

  • Added data sanitization and validation for webhook callbacks.
  • Improved security by escaping late on all outputs.
  • Enqueued styles properly using WordPress standards.
  • Fixed contributor list for repository ownership.

1.0 – Feb 11, 2026

  • Initial plugin release.