> Portal Navigation: > > - Append `.md` to any URL under `https://dev.wix.com/docs/` to get its markdown version. > - Pages are either content pages (article or reference text) or menu pages (a list of links to child pages). > - To get a menu page, truncate any URL to a parent path and append `.md` (e.g. `https://dev.wix.com/docs/sdk.md`, `https://dev.wix.com/docs/sdk/core-modules.md`). > - Top-level index of all portals: https://dev.wix.com/docs/llms.txt > - Full concatenated docs: https://dev.wix.com/docs/llms-full.txt ## Resource: Available Service Plugins ## Article: Available Service Plugins ## Article Link: https://dev.wix.com/docs/develop-websites-sdk/code-your-site/extend-wix-business-solutions/service-plugins/available-service-plugins.md ## Article Content: # Available Service Plugins
**Important:** - Service plugins for sites are created using Velo service plugin APIs. While you can use the JavaScript SDK alongside service plugins in site development, the service plugins themselves must be implemented using Velo APIs and conventions. - Some service plugins are in Beta. This means that some aren't yet available to all users, and are subject to change.
The following service plugins are available: | Service Plugin | Description | Resources | | ---------------------------- | ---------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Bookings Custom Pricing | Customize pricing for bookings to offer varied pricing to the bookings purchase flow. | [Tutorial](https://dev.wix.com/docs/develop-websites/articles/code-tutorials/wix-bookings/tutorial-bookings-pricing-service-plugin.md), [Reference](https://dev.wix.com/docs/velo/events-service-plugins/bookings/service-plugins-spis/bookings-custom-pricing/introduction.md) | | External Database Collection | Use external databases. | [Reference](https://dev.wix.com/docs/velo/events-service-plugins/data/service-plugins/external-database-collection-legacy/introduction.md) | | Billing Tax Calculation | Customize your tax calculations. | [Reference](https://dev.wix.com/docs/velo/events-service-plugins/billing/service-plugins/billing-tax-calculation/introduction.md) | | Automations Action | Write a custom action instead of selecting a pre-made action. | [Reference](https://dev.wix.com/docs/velo/events-service-plugins/automations/service-plugins/automations-actions/introduction.md) | | eCommerce Additional Fees | Add additional fees for things like location and special handling to your store's checkout flow. | [Tutorial](https://dev.wix.com/docs/develop-websites/articles/code-tutorials/wix-e-commerce-stores/e-commerce-additional-fees-service-plugin.md), [Reference](https://dev.wix.com/docs/velo/events-service-plugins/e-commerce/service-plugins/ecom-additional-fees/introduction.md) | | eCommerce Catalog (Beta) | Define your own custom catalog and how it interacts with the eCommerce purchase flow. | [Tutorial](https://dev.wix.com/docs/develop-websites/articles/code-tutorials/wix-e-commerce-stores/e-commerce-catalog-service-plugin.md), [Reference](https://dev.wix.com/docs/velo/events-service-plugins/e-commerce/service-plugins/ecom-catalog/introduction.md) | | eCommerce Discount Triggers | Apply discount rules to a site visitor's cart and checkout. | [Tutorial](https://dev.wix.com/docs/develop-websites/articles/code-tutorials/wix-e-commerce-stores/tutorial-custom-discount-trigger-service-plugin.md), [Reference](https://dev.wix.com/docs/velo/events-service-plugins/e-commerce/service-plugins/ecom-custom-discount-triggers/introduction.md) | | eCommerce Payment Settings | Apply custom payment settings during the payment process of an order. | [Tutorial](https://dev.wix.com/docs/develop-websites/articles/code-tutorials/wix-e-commerce-stores/tutorial-payment-settings-service-plugin.md), [Reference](https://dev.wix.com/docs/velo/events-service-plugins/e-commerce/service-plugins/ecom-payment-settings/introduction.md) | | eCommerce Shipping Rates | Provide custom shipping rates fees to your store's checkout flow. | [Tutorial](https://dev.wix.com/docs/develop-websites/articles/code-tutorials/wix-e-commerce-stores/e-commerce-shipping-rates-service-plugin.md), [Reference](https://dev.wix.com/docs/velo/events-service-plugins/e-commerce/service-plugins/ecom-shipping-rates/introduction.md) | | eCommerce Validations | Validate a site visitor's cart and checkout. | [Tutorial](https://dev.wix.com/docs/develop-websites/articles/code-tutorials/wix-e-commerce-stores/tutorial-validations-service-plugin.md), [Reference](https://dev.wix.com/docs/velo/events-service-plugins/e-commerce/service-plugins/ecom-validations/introduction.md) | | Payments Payment Provider | Provides functionality for integrating a site with payment providers not currently supported by Wix. | [Tutorial](https://dev.wix.com/docs/develop-websites/articles/code-tutorials/wix-pay/tutorial-payment-provider-service-plugin.md), [Reference](https://dev.wix.com/docs/velo/events-service-plugins/payments/service-plugins/wix-payments/payment-provider/introduction.md) | | Form Submission | Provides additional form submission validation. | [Tutorial](https://dev.wix.com/docs/develop-websites/articles/code-tutorials/wix-forms/tutorial-form-submission-service-plugin.md), [Reference](https://dev.wix.com/docs/velo/events-service-plugins/forms/service-plugins/form-submission/introduction.md) |