### Products API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints for managing products.

```APIDOC
## Products API Endpoints

### Description
Endpoints for managing products.

### Endpoints
- AddProduct
```

--------------------------------

### System API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints for managing system configurations, logs, and general system information.

```APIDOC
## System API Endpoints

### Description
Endpoints for managing system configurations, logs, and general system information.

### Endpoints
- AddBannedIp
- DecryptPassword
- EncryptPassword
- GetActivityLog
- GetAdminDetails
- GetAdminUsers
- GetAutomationLog
- GetConfigurationValue
- GetCurrencies
- GetEmailTemplates
- GetPaymentMethods
- GetStaffOnline
- GetStats
- GetToDoItems
- GetToDoItemStatuses
- LogActivity
- SendAdminEmail
- SendEmail
- SetConfigurationValue
- TriggerNotificationEvent
- UpdateAdminNotes
- UpdateAnnouncement
- UpdateToDoItem
- WhmcsDetails
```

--------------------------------

### Module API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints for managing modules, including activation, deactivation, and configuration.

```APIDOC
## Module API Endpoints

### Description
Endpoints for managing modules, including activation, deactivation, and configuration.

### Endpoints
- ActivateModule
- DeactivateModule
- GetModuleConfigurationParameters
- GetModuleQueue
- UpdateModuleConfiguration
```

--------------------------------

### Users API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints for managing user accounts, permissions, and client invitations.

```APIDOC
## Users API Endpoints

### Description
Endpoints for managing user accounts, permissions, and client invitations.

### Endpoints
- AddUser
- CreateClientInvite
- DeleteUserClient
- GetPermissionsList
- GetUserPermissions
- GetUsers
- ResetPassword
- UpdateUser
- UpdateUserPermissions
```

--------------------------------

### Addons API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints for managing client addons.

```APIDOC
## Addons API Endpoints

### Description
Endpoints for managing client addons.

### Endpoints
- UpdateClientAddon
```

--------------------------------

### Affiliates API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints for managing affiliate accounts and related data.

```APIDOC
## Affiliates API Endpoints

### Description
Endpoints for managing affiliate accounts and related data.

### Endpoints
- AffiliateActivate
- GetAffiliates
```

--------------------------------

### Support API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints for managing support tickets, announcements, and client notes.

```APIDOC
## Support API Endpoints

### Description
Endpoints for managing support tickets, announcements, and client notes.

### Endpoints
- AddAnnouncement
- AddCancelRequest
- AddClientNote
- AddTicketNote
- AddTicketReply
- BlockTicketSender
- DeleteAnnouncement
- DeleteTicket
- DeleteTicketNote
- DeleteTicketReply
- GetAnnouncements
- MergeTicket
- OpenTicket
- UpdateTicket
- UpdateTicketReply
```

--------------------------------

### Authentication API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints for handling authentication, including OAuth credentials and SSO tokens.

```APIDOC
## Authentication API Endpoints

### Description
Endpoints for handling authentication, including OAuth credentials and SSO tokens.

### Endpoints
- CreateOAuthCredential
- CreateSsoToken
- DeleteOAuthCredential
- ListOAuthCredentials
- UpdateOAuthCredential
- ValidateLogin
```

--------------------------------

### Billing API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints for managing billing, invoices, quotes, and payments.

```APIDOC
## Billing API Endpoints

### Description
Endpoints for managing billing, invoices, quotes, and payments.

### Endpoints
- AcceptQuote
- AddBillableItem
- AddCredit
- AddInvoicePayment
- AddPayMethod
- AddTransaction
- ApplyCredit
- CapturePayment
- CreateInvoice
- CreateQuote
- DeletePayMethod
- DeleteQuote
- GenInvoices
- GetCredits
- GetInvoice
- GetInvoices
- GetPayMethods
- GetQuotes
- GetTransactions
- SendQuote
- UpdateInvoice
- UpdatePayMethod
- UpdateQuote
- UpdateTransaction
```

--------------------------------

### Client API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints for managing client accounts, contacts, and associated details.

```APIDOC
## Client API Endpoints

### Description
Endpoints for managing client accounts, contacts, and associated details.

### Endpoints
- AddClient
- AddContact
- CloseClient
- DeleteClient
- DeleteContact
- GetCancelledPackages
- GetClientGroups
- GetClientPassword
- GetClients
- GetClientsAddons
- GetClientsDetails
- GetClientsDomains
- GetClientsProducts
- GetContacts
- GetEmails
- UpdateClient
- UpdateContact
```

--------------------------------

### Service API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints for managing client services, including upgrades, downgrades, and module-specific actions.

```APIDOC
## Service API Endpoints

### Description
Endpoints for managing client services, including upgrades, downgrades, and module-specific actions.

### Endpoints
- ModuleChangePackage
- ModuleChangePw
- ModuleCreate
- ModuleCustom
- ModuleSuspend
- ModuleTerminate
- ModuleUnsuspend
- UpdateClientProduct
- UpgradeProduct
```

--------------------------------

### Domains API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints for managing domain registrations, transfers, and related DNS information.

```APIDOC
## Domains API Endpoints

### Description
Endpoints for managing domain registrations, transfers, and related DNS information.

### Endpoints
- CreateOrUpdateTLD
- DomainGetLockingStatus
- DomainGetNameservers
- DomainGetWhoisInfo
- DomainRegister
- DomainRelease
- DomainRenew
- DomainRequestEPP
- DomainToggleIdProtect
- DomainTransfer
- DomainUpdateLockingStatus
- DomainUpdateNameservers
- DomainUpdateWhoisInfo
- DomainWhois
- GetRegistrars
- GetTLDPricing
- UpdateClientDomain
```

--------------------------------

### Servers API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints for retrieving information about server health and status.

```APIDOC
## Servers API Endpoints

### Description
Endpoints for retrieving information about server health and status.

### Endpoints
- GetHealthStatus
- GetServers
```

--------------------------------

### Project Management API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints for managing projects, tasks, and messages within the project management system.

```APIDOC
## Project Management API Endpoints

### Description
Endpoints for managing projects, tasks, and messages within the project management system.

### Endpoints
- AddProjectMessage
- AddProjectTask
- CreateProject
- DeleteProjectTask
- EndTaskTimer
- GetProject
- GetProjects
- StartTaskTimer
- UpdateProject
- UpdateProjectTask
```

--------------------------------

### Orders API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints related to managing orders within the WHMCS system.

```APIDOC
## Orders API Endpoints

### Description
Endpoints related to managing orders within the WHMCS system.

### Endpoints
- AcceptOrder
- AddOrder
- CancelOrder
- DeleteOrder
- FraudOrder
- GetOrders
- GetOrderStatuses
- GetProducts
- GetPromotions
- OrderFraudCheck
- PendingOrder
```

--------------------------------

### Tickets API Endpoints

Source: https://developers.whmcs.com/api/api-index/index

Endpoints for retrieving detailed information about support tickets.

```APIDOC
## Tickets API Endpoints

### Description
Endpoints for retrieving detailed information about support tickets.

### Endpoints
- GetSupportDepartments
- GetSupportStatuses
- GetTicket
- GetTicketAttachment
- GetTicketCounts
- GetTicketNotes
- GetTicketPredefinedCats
- GetTicketPredefinedReplies
- GetTickets
```

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