Apple Inc.
type: Organization

iOS
type: MobileOperatingSystem
vendor: Apple Inc.

App Store Connect API
type: ServerAPI
platform: iOS
provider: Apple Inc.
base URL: https://api.appstoreconnect.apple.com
documentation: appstoreconnectapi
auth mechanism: JWT (ES256)
transport: REST / JSON:API

App Store Server API
type: ServerAPI
platform: iOS
provider: Apple Inc.
base URL: https://api.storekit.itunes.apple.com
sandbox URL: https://api.storekit-sandbox.itunes.apple.com
auth mechanism: JWT (ES256)
transport: REST + JWS

App Store Server Notifications V2
type: WebhookAPI
platform: iOS
provider: Apple Inc.
auth mechanism: JWS (verify with Apple cert chain)
transport: Webhook

Apple Push Notification Service
type: PushAPI
platform: iOS
provider: Apple Inc.
base URL: https://api.push.apple.com
sandbox URL: https://api.sandbox.push.apple.com
auth mechanism: JWT (ES256) or TLS client certificate
transport: HTTP/2 + JSON

DeviceCheck and App Attest
type: AttestationService
platform: iOS
provider: Apple Inc.
base URL: https://api.devicecheck.apple.com
sandbox URL: https://api.development.devicecheck.apple.com
auth mechanism: JWT (ES256)

Sign in with Apple
type: IdentityProvider
platform: iOS
provider: Apple Inc.
base URL: https://appleid.apple.com
auth mechanism: client_secret JWT (ES256)

Apple Music API
type: ServerAPI
platform: iOS
provider: Apple Inc.
base URL: https://api.music.apple.com
auth mechanism: Developer Token + User Token

Wallet / PassKit Web Service
type: ServerAPI
platform: iOS
provider: Apple Inc.
documentation: walletpasses