> ## Documentation Index > Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt > Use this file to discover all available pages before exploring further. # Services C API overview - PFEntity.h > Services C API overview - PFEntity.h ## Functions | Function | Description | | -------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [PFEntityCloseHandle](/services/playfab/api-references/c/pfentity/functions/pfentityclosehandle) | Closes a PFEntityHandle. | | [PFEntityDuplicateHandle](/services/playfab/api-references/c/pfentity/functions/pfentityduplicatehandle) | Duplicates a PFEntityHandle. | | [PFEntityGetAPIEndpoint](/services/playfab/api-references/c/pfentity/functions/pfentitygetapiendpoint) | Gets the API endpoint for the PFServiceConfig associated with an entity handle. | | [PFEntityGetAPIEndpointSize](/services/playfab/api-references/c/pfentity/functions/pfentitygetapiendpointsize) | Gets the size of the buffer needed to hold the API endpoint string from an entity handle. | | [PFEntityGetEntityKey](/services/playfab/api-references/c/pfentity/functions/pfentitygetentitykey) | Get the PFEntityKey for an entity. | | [PFEntityGetEntityKeySize](/services/playfab/api-references/c/pfentity/functions/pfentitygetentitykeysize) | Get the size in bytes needed to store the PFEntityKey for an Entity. | | [PFEntityGetEntityTokenAsync](/services/playfab/api-references/c/pfentity/functions/pfentitygetentitytokenasync) | Get the cached PFEntityToken for an Entity. | | [PFEntityGetEntityTokenResult](/services/playfab/api-references/c/pfentity/functions/pfentitygetentitytokenresult) | Gets the result of a successful PFEntityGetEntityTokenAsync call. | | [PFEntityGetEntityTokenResultSize](/services/playfab/api-references/c/pfentity/functions/pfentitygetentitytokenresultsize) | Get the size in bytes needed to store the result of a PFEntityGetEntityTokenAsync call. | | [PFEntityGetSecretKey](/services/playfab/api-references/c/pfentity/functions/pfentitygetsecretkey) | Gets the PlayFab secretKey associated with a title Entity. Will fail with E\_PF\_NOSECRETKEY if there is no Secret Key associated with the provided Entity. | | [PFEntityGetSecretKeySize](/services/playfab/api-references/c/pfentity/functions/pfentitygetsecretkeysize) | Gets the size of the buffer needed to hold the PlayFab secretKey. Will fail with E\_PF\_NOSECRETKEY if there is no Secret Key associated with the provided Entity. | | [PFEntityIsTitlePlayer](/services/playfab/api-references/c/pfentity/functions/pfentityistitleplayer) | Convenience method to check if an Entity is a Title Player. This is equivalent to calling PFEntityGetEntityKey and comparing entityKey.type to PFTitlePlayerEntityType. | | [PFEntityRegisterTokenExpiredEventHandler](/services/playfab/api-references/c/pfentity/functions/pfentityregistertokenexpiredeventhandler) | Register a handler for EntityToken expired events. | | [PFEntityRegisterTokenRefreshedEventHandler](/services/playfab/api-references/c/pfentity/functions/pfentityregistertokenrefreshedeventhandler) | Register a handler for EntityToken refreshed events. | | [PFEntityTokenExpiredEventHandler](/services/playfab/api-references/c/pfentity/functions/pfentitytokenexpiredeventhandler) | EntityToken expired event handler. Needed to reauthenticate players in scenarios where the SDK is unable to automatically refresh the cached EntityToken. | | [PFEntityTokenRefreshedEventHandler](/services/playfab/api-references/c/pfentity/functions/pfentitytokenrefreshedeventhandler) | A handler invoked every time an Entity is automatically re-authenticated, thus obtaining a new EntityToken. An entity will be automatically re-authenticated prior to its EntityToken expiring. | | [PFEntityUnregisterTokenExpiredEventHandler](/services/playfab/api-references/c/pfentity/functions/pfentityunregistertokenexpiredeventhandler) | Unregisters a previously registered callback. | | [PFEntityUnregisterTokenRefreshedEventHandler](/services/playfab/api-references/c/pfentity/functions/pfentityunregistertokenrefreshedeventhandler) | Unregisters a previously registered PFEntityTokenRefreshedCallback. | ## Structures | Structure | Description | | ---------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------- | | [PFEntityToken](/services/playfab/api-references/c/pfentity/structs/pfentitytoken) | PlayFab EntityToken and its expiration time. Used to authenticate PlayFab service calls. | ## Related topics - [PFEntityGetEntityKey](/services/playfab/api-references/c/pfentity/functions/pfentitygetentitykey.md) - [PFEntityToken](/services/playfab/api-references/c/pfentity/structs/pfentitytoken.md) - [PFEntityGetEntityKeySize](/services/playfab/api-references/c/pfentity/functions/pfentitygetentitykeysize.md) - [PFEntityGetEntityTokenAsync](/services/playfab/api-references/c/pfentity/functions/pfentitygetentitytokenasync.md) - [PFEntityGetEntityTokenResult](/services/playfab/api-references/c/pfentity/functions/pfentitygetentitytokenresult.md)