JUMP TOGetting StartedIntroductionPaginationErrorsWebhooksOverviewEventsCore ResourcesClientsCreate ClientpostRetrieve ClientgetUpdate ClientpatchDelete ClientdeleteList ClientsgetCompaniesCreate CompanypostRetrieve CompanygetUpdate CompanypatchDelete CompanydeleteList CompaniesgetContractsSend ContractpostRetrieve ContractgetList ContractsgetContract TemplatesRetrieve Contract TemplategetList Contract TemplatesgetCustom FieldsList Custom FieldsgetCustom Field OptionsList Custom Field OptionsgetFilesCreate FilepostRetrieve FilegetList FilesgetFile ChannelsCreate File ChannelpostRetrieve File ChannelgetList File ChannelsgetFormsRetrieve FormgetList FormsgetForm ResponsesRequest Form ResponsepostList Form ResponsesgetInternal UsersRetrieve Internal UsergetList Internal UsersgetMessagesSend MessagepostList MessagesgetMessage ChannelsCreate Message ChannelpostRetrieve Message ChannelgetList Message ChannelsgetNotificationsList NotificationsgetCreate NotificationpostDelete NotificationdeleteMark Notification ReadpostMark Notification UnreadpostWorkspacesRetrieve WorkspacegetSend Messagepost https://api.copilot.com/v1/messagesThis API endpoint sends a message within a Message Channel.