Appleid
Adds Sign In with Apple to your website without writing low-level OAuth code using this JavaScript SDK
Last verified:
What is Appleid?
The Apple ID JS SDK (appleid.auth.js) is a client‑side JavaScript library that enables web developers to integrate Apple’s Sign In with Apple authentication into their websites and web apps. It provides tools to initialize an Apple ID authorization flow, render a customizable Apple sign‑in button, and trigger the sign‑in or sign‑up popup without writing low‑level OAuth code. The script exposes a simple API that reads configuration from HTML meta tags or a manual init call, then builds the necessary OAuth query parameters and redirects the user into Apple’s secure sign‑in flow.
Key features include support for configuring the client ID, scopes (for example name and email), redirect URI, and state/nonce parameters, either via meta tags in the page head or via a JavaScript init object. The library also lets you render responsive buttons in different styles (black, white, border, different types like sign‑in, continue, or sign‑up) and sizes, with correct localization and layout that conforms to Apple’s design guidelines. Once the user signs in, the library sends an authorization code or ID token back to your configured redirect URI, which your backend can then exchange for an access token and verify as part of your application’s session logic.
This tool is primarily for web developers building websites or single‑page apps that need to offer Apple as a login option, especially when they already have an Apple Developer Program membership and a Service ID configured for Sign In with Apple. It is well‑suited for teams that want a lightweight, officially supported way to add Apple authentication without managing the full OAuth dance in raw JavaScript, but who still prefer to keep most of the flow on the client side and offload only token validation and session creation to their backend.
The SDK is also useful for integrations that need buttons to respond to layout changes automatically, via an internal resize observer, ensuring the Apple sign‑in button stays visually correct as the page is resized. It is not a full‑featured identity provider SDK; instead, it is focused narrowly on initiating the Apple OAuth flow and rendering the required UI elements, leaving advanced user management, token storage, and consent screens to the developer’s own backend or existing identity infrastructure.
Appleid pricing
Pricing model: Freemium
The Apple ID JS SDK is provided free of charge as part of the Apple Sign In with Apple service, with no separate pricing tier or per‑usage fees. It is licensed for use on websites and web apps where you are enrolled in the Apple Developer Program and have a properly configured Service ID for Sign In with Apple. There is no paid plan for the script itself; any costs associated with its use are limited to your participation in the Apple Developer Program and your own backend infrastructure for handling OAuth tokens and sessions.
Appleid pros
- Official Apple‑provided JavaScript library for Sign In with Apple
- Lightweight client‑side script that does not require a large framework
- Supports declarative setup via meta tags in the page head
- Allows programmatic initialization with an options object for finer control
- Configurable client ID, redirect URI, scope, state, and nonce parameters
- Supports OAuth code flow suitable for server‑side token exchange
- Enables sign‑in and sign‑up via a consistent, Apple‑branded UI
- Provides multiple button styles (black, white, with border) and modes (sign‑in, continue, sign‑up)
- Offers different button sizes and responsive rendering
- Supports logo‑only and label‑only button variants
- Respects accessibility attributes such as role=
- and tabindex=
- Automatically handles ARIA label text for assistive technologies
- Includes internal resize logic that keeps the button layout consistent across viewport sizes
- Compatible with standard HTML forms and common JavaScript build setups
- Provides a clear error surface via dedicated error codes and messages when the flow fails
Appleid cons
- Requires Apple Developer Program enrollment and configuration of a Service ID
- No built‑in user session management or logout handling on the client
- Does not include server‑side token verification or ID‑token parsing
- No built‑in UI components beyond the sign‑in button itself
- Limited to web‑browser environments; cannot be used directly in native apps
- No built‑in recovery or help UX if the user cancels or fails sign‑in
- Depends on a content‑delivery URL that may be affected by network or CDN issues
- Does not expose advanced configuration knobs for the OAuth authorization page
- Does not provide a built‑in theme or CSS override API beyond basic attributes
- No official TypeScript typings included in the hosted script
Frequently asked questions about Appleid
What is appleid.auth.js used for?
The appleid.auth.js script is Apple’s JavaScript SDK that enables web developers to integrate Sign In with Apple into their websites. It lets you render an Apple sign‑in button on a page and initiate the Apple authentication flow, which then redirects the user to Apple’s secure sign‑in page and returns an authorization code or ID token to your configured redirect URI.
Can I configure Apple ID sign‑in without meta tags?
Yes; instead of using meta tags in the head, you can call AppleID.auth.init() with an options object that specifies the client ID, redirect URI, scope, state, nonce, and other parameters. The script will then use those values to build the OAuth request and render the button without relying on HTML meta tags.
What are the required configuration options?
At a minimum you must provide a client ID (from your Apple Service ID), a redirect URI that matches your registered URLs, and usually a scope (for example name and email) and a state parameter for security. If you use usePopup true, the script will open the sign‑in flow in a popup; otherwise it will redirect the main window.
Does the script support multiple languages?
The script is localized by loading the appropriate language bundle via the URL path (for example en_US, fr_FR, etc.). If you change the locale segment in the script URL and your button data‑locale attribute, the button text and labels will reflect the corresponding language, as long as that locale is supported by Apple’s Sign In with Apple service.
Can I customize the look of the Apple sign‑in button?
You can choose from several built‑in styles (black, white, with or without border) and button types (sign‑in, continue, sign‑up) via data attributes or the options object passed to the renderButton function. You can also control width, height, and layout mode (center‑align, left‑align, logo‑only), but you cannot arbitrarily change the Apple logo or the core typography beyond the provided variants.
How do I handle the sign‑in response on the server?
After the user signs in, Apple redirects back to your redirect URI with either an authorization code or an ID token. Your server must receive that parameter, exchange the code for an access or ID token using Apple’s token endpoint, and verify the ID token’s signature and claims before creating a session for the user. The client‑side script does not perform this server‑side exchange or validation.
Is the script suitable for single‑page apps?
Yes; since the script supports both redirect and popup flows, it can work in single‑page apps that manage their own routing. You just need to ensure your redirect URI points to a route your SPA can handle, or arrange to receive the authorization code or token in the popup window and pass it to the main app context.
What happens if the user cancels the Apple sign‑in flow?
If the user cancels the Apple sign‑in prompt, the flow either closes the popup or returns an error to your page depending on the integration mode. The script will trigger an error callback or promise rejection with an appropriate error code, which you can observe and use to show a user‑friendly message or retry the sign‑in attempt.
Are there any security constraints I must follow with this script?
You must enroll in the Apple Developer Program, register a Service ID with Sign In with Apple enabled, and configure allowed redirect URIs that match your production and development domains. You must also use a fresh state parameter for each request and validate it on your server, and never expose your private Apple key or client secret in client‑side JavaScript. The script itself is provided under Apple’s terms and is intended for use only in approved Sign In with Apple integrations.