Developers' Glossary
Access type
Authorization profile used to interact with Wix. Every actor who interacts with Wix, whether they log into Wix, visit a Wix site, or make API calls, must authorize their calls using an access type. Access types include visitor, member, user, app and API key.
App ID
Unique ID that identifies your app in Wix. Find it on your app’s main page and OAuth page in the Wix Dev Center.
API key
Account-level access token for REST and SDK API calls, that can be used for account-level APIs as well as site-level APIs. Account-level access provides access only to the specific sites that are managed by the relevant account. Only available to select apps after App Market approval.
App instance
Properties that describe your app's installation on a specific site. These properties include the app instance ID, user ID, premium flag and more.
App instance ID
Unique ID that identifies your app's installation on a specific site. Use this ID to identify specific sites in your app's code.
Custom app
App that is available only on your own sites, on your clients' sites, or for other collaborative projects. Custom apps are not listed in the Wix App Market.
Dashboard
Interface where users can manage their site and installed apps. Dashboards aren’t exposed to site visitors.
Development site
Free, pre-made premium site available to all third-party app developers for testing purposes.
Editor
Interface where site builders design their site’s visual components. Wix currently offers 2 different editors: Wix Editor and Wix Studio.
Extension
Functionality that an app adds to a site, for example, a dashboard page, a site widget or specific backend logic.
Extension ID
Unique ID that identifies your extension in Wix.
Identity
Unique identifiers Wix uses to identify actors. Each identity has their own ID and access type. Identities include visitor, member, user, app and API key.
Permission scope
Sets of permissions that you can request from Wix users when they install your app. These permissions enable you to access and manage relevant site data. You can configure the permissions scopes for your app in the Developers Center.
Plugin
Extension that adds functionality to an app created by Wix, with either a visual component or backend logic.
Public key
Encryption key used to verify that data payloads were sent by Wix. You’ll need this to read webhook and SPI call data. You can find your app's public key on the Webhooks page in the Wix Developers' Center.
Query builder
Function that builds a query to retrieve a list of items.
Secret key
Encryption key used to create your app’s signature. You’ll need this to sign requests to Wix APIs, and Wix uses it when sending data to your app. You can find it on the OAuth page in the Wix Developers' Center.
Service plugin (formerly SPI)
APIs designed to be implemented by Wix users or by third parties, enabling you to customize Wix's business logic within a specific business solution.
Slot
UI placeholder within a site or dashboard page of an app created by Wix, where users can place a plugin.
User ID
Unique ID that identifies a Wix user.
Wix app
Any app that extends the Wix ecosystem, including apps made by Wix, apps made by third parties and apps made by site builders. A third-party app can be public (available on the Wix App Market) or private (see custom app).
Wix Blocks
Editor for building responsive Wix apps.
Wix business solution
Comprehensive app made by Wix for managing a specific type of business, such as Wix Stores and Wix Bookings.
Wix CLI
Command-line interface tool that streamlines building Wix apps with minimal setup and configuration.
Wix Design System
Collection of reusable React components and clear standards for designing Wix apps with the Wix look and feel.
Wix Patterns
Collection of Wix Design System's reusable React components organized into fully-functional design and behavior presets for common types of functionality.
Wix user
Anyone who creates an account on wix.com. Users include site owners, who create a site, and site collaborators, who are invited by site owners to help manage the site and business.