--- title: "Edit chat message" method: PATCH path: "/chats/{chat_id}/messages/{message_id}" tags: ["Messages"] --- # Edit chat message `PATCH /chats/{chat_id}/messages/{message_id}` ## Request - Base URL: `https://api.useinvent.com` - URL: `https://api.useinvent.com/chats/{chat_id}/messages/{message_id}` - Auth: HTTP bearer Edit the text content of a specific message. ## Path parameters - `chat_id` string, required - `message_id` string, required ## Request body - UpdateChatMessageSchema: Edit the content of a message - `message` ModelUserPartsSchema[], required: The user message to open the chat with - union: User message parts - ModelTextPartSchema - `type` 'text', required - `text` string, required - `audio` FileSchema: Detailed information about a file - `id` string, required: Unique identifier for the file - `file_path` string, required: Path to the file in the storage system - `file_filename` string, required: Name of the file - `file_size` number, required: Size of the file in bytes - `file_mimetype` string, required: MIME type of the file - `file_url` string, required: URL to access the file - `created_at` string, date-time, nullable, required: Timestamp when the file was created - `start_ms` integer: Where the spoken text starts on the voice call timeline, in ms from the call start - `end_ms` integer: Where the spoken text ends on the voice call timeline, in ms from the call start - `html` boolean: When true, text holds the raw original inbound email HTML, stored verbatim. Clients sanitize and render it; the model receives markdown derived at read time. - `json` boolean: When true, text holds a JSON document, such as a trigger payload. Clients render it as JSON; the model receives the text as-is. - `start_timestamp` number: Timestamp when the message part started processing, in milliseconds - `end_timestamp` number: Timestamp when the message part finished processing, in milliseconds - ModelUserFilePartSchema: A file sent in a message. The server writes its transcript and description. - `type` 'file', required - `url` string, required - `kind` 'voice' | 'sticker': Marks communication-only files (voice notes, stickers) from integrations so they can be excluded from the contact files tab. - `file` FileSchema: Detailed information about a file - `id` string, required: Unique identifier for the file - `file_path` string, required: Path to the file in the storage system - `file_filename` string, required: Name of the file - `file_size` number, required: Size of the file in bytes - `file_mimetype` string, required: MIME type of the file - `file_url` string, required: URL to access the file - `created_at` string, date-time, nullable, required: Timestamp when the file was created - `auto_consume` boolean: Whether this file should be automatically consumed and processed by the model - `start_timestamp` number: Timestamp when the message part started processing, in milliseconds - `end_timestamp` number: Timestamp when the message part finished processing, in milliseconds - ModelImagePartSchema - `type` 'image', required - `url` string, required - `kind` 'voice' | 'sticker': Marks communication-only files (voice notes, stickers) from integrations so they can be excluded from the contact files tab. - `file` FileSchema: Detailed information about a file - `id` string, required: Unique identifier for the file - `file_path` string, required: Path to the file in the storage system - `file_filename` string, required: Name of the file - `file_size` number, required: Size of the file in bytes - `file_mimetype` string, required: MIME type of the file - `file_url` string, required: URL to access the file - `created_at` string, date-time, nullable, required: Timestamp when the file was created - `auto_consume` boolean: Whether this file should be automatically consumed and processed by the model - `start_timestamp` number: Timestamp when the message part started processing, in milliseconds - `end_timestamp` number: Timestamp when the message part finished processing, in milliseconds - ModelOptionSelectedPartSchema: Option selected by the user, typically used in multiple choice scenarios - `type` 'option_selected', required - `call_id` string: The ID of the tool call that generated the options - `label` string, required: Label for the option selected - `value` string, required: Value for the option selected - `start_timestamp` number: Timestamp when the message part started processing, in milliseconds - `end_timestamp` number: Timestamp when the message part finished processing, in milliseconds - ModelContactPartSchema - `type` 'contact', required - `name` string - `email` string - `phone` string - `username` string - `user_id` string: Id of the person on the channel the message came from - `start_timestamp` number: Timestamp when the message part started processing, in milliseconds - `end_timestamp` number: Timestamp when the message part finished processing, in milliseconds - ModelLocationPartSchema - `type` 'location', required - `latitude` number - `longitude` number - `name` string - `address` string - `url` string - `google_place_id` string - `start_timestamp` number: Timestamp when the message part started processing, in milliseconds - `end_timestamp` number: Timestamp when the message part finished processing, in milliseconds - ModelReferencePartSchema: An entity the user tagged in the message. Validated and enriched server-side on send; org chats only. - `type` 'reference', required - `kind` 'agent' | 'routine' | 'contact' | 'user' | 'skill' | 'record' | 'table' | 'assistant', required: The kind of entity a reference points at - `id` string, required: Public id of the referenced entity - `name` string, required: Display name, snapshotted when the text was written - `icon` union: The entity's own icon or emoji, filled on write. Null = the default of its kind - string, emoji: The emoji of a curated icon a user can pick for a table, view, field, or other entity - 'TableCellsIcon' | 'DatabaseIcon' | 'DocumentTextIcon' | 'DocumentChartBarIcon' | 'ClipboardDocumentListIcon' | 'ClipboardDocumentCheckIcon' | 'FolderIcon' | 'ArchiveBoxIcon' | 'InboxIcon' | 'BookOpenIcon' | 'BookmarkIcon' | 'NewspaperIcon' | 'RectangleStackIcon' | 'PencilSquareIcon' | 'UserIcon' | 'UsersIcon' | 'UserGroupIcon' | 'UserPlusIcon' | 'IdentificationIcon' | 'FaceSmileIcon' | 'HandThumbUpIcon' | 'HeartIcon' | 'StarIcon' | 'CheckBadgeIcon' | 'TrophyIcon' | 'CrownIcon' | 'ChatBubbleLeftIcon' | 'ChatBubbleLeftRightIcon' | 'EnvelopeIcon' | 'EnvelopeOpenIcon' | 'PhoneIcon' | 'DevicePhoneMobileIcon' | 'MegaphoneIcon' | 'BellIcon' | 'PaperAirplaneIcon' | 'AtSymbolIcon' | 'RssIcon' | 'LifebuoyIcon' | 'ShoppingCartIcon' | 'ShoppingBagIcon' | 'BuildingStorefrontIcon' | 'CreditCardIcon' | 'BanknotesIcon' | 'CurrencyDollarIcon' | 'CurrencyEuroIcon' | 'ReceiptPercentIcon' | 'WalletIcon' | 'CoinsIcon' | 'GiftIcon' | 'TagIcon' | 'TicketIcon' | 'ScaleIcon' | 'TruckIcon' | 'CubeIcon' | 'CalendarIcon' | 'CalendarDaysIcon' | 'CalendarDateRangeIcon' | 'ClockIcon' | 'FlagIcon' | 'CheckCircleIcon' | 'ListBulletIcon' | 'QueueListIcon' | 'FunnelIcon' | 'ChartBarIcon' | 'ChartPieIcon' | 'PresentationChartLineIcon' | 'ArrowTrendingUpIcon' | 'BriefcaseIcon' | 'WrenchScrewdriverIcon' | 'Cog6ToothIcon' | 'KeyIcon' | 'LockClosedIcon' | 'ShieldCheckIcon' | 'BoltIcon' | 'LightBulbIcon' | 'BeakerIcon' | 'BugAntIcon' | 'CpuChipIcon' | 'CodeBracketIcon' | 'CommandLineIcon' | 'ServerIcon' | 'LinkIcon' | 'HomeIcon' | 'HomeModernIcon' | 'BuildingOfficeIcon' | 'BuildingOffice2Icon' | 'BuildingLibraryIcon' | 'MapPinIcon' | 'MapIcon' | 'GlobeAltIcon' | 'GlobeAmericasIcon' | 'RocketLaunchIcon' | 'PlaneIcon' | 'CarIcon' | 'SunIcon' | 'MoonIcon' | 'FireIcon' | 'SparklesIcon' | 'CakeIcon' | 'AcademicCapIcon' | 'ScissorsIcon' | 'SwatchIcon' | 'PaintBrushIcon' | 'CoffeeIcon' | 'UtensilsIcon' | 'LeafIcon' | 'DumbbellIcon' | 'HeartPulseIcon' | 'PawPrintIcon' | 'StethoscopeIcon' | 'CameraIcon' | 'PhotoIcon' | 'FilmIcon' | 'VideoCameraIcon' | 'MicrophoneIcon' | 'MusicalNoteIcon' | 'SpeakerWaveIcon' | 'PlayCircleIcon' | 'TvIcon' | 'RadioIcon' | 'PuzzlePieceIcon' | 'GamepadIcon': The name of a curated icon a user can pick for a table, view, field, or other entity - `icon_url` string, uri, nullable: The entity's image, filled on write, when it has one - `color` 'red' | 'orange' | 'amber' | 'yellow' | 'lime' | 'green' | 'teal' | 'cyan' | 'sky' | 'blue' | 'indigo' | 'violet' | 'purple' | 'fuchsia' | 'pink' | 'rose' | 'neutral' | 'null', nullable: The entity's tint, filled on write, when it has one - `start_timestamp` number: Timestamp when the message part started processing, in milliseconds - `end_timestamp` number: Timestamp when the message part finished processing, in milliseconds ## Response `200` - ChatMessageSchema: The chat message schema - `id` string, required - `role` 'user' | 'assistant' | 'system' | 'tool' | 'event' | 'note', required: The role of the message - `model` string, required: The model used for the message - `messages` ModelMessageSchema[]: The message content - union - ModelSystemMessageSchema: System message - `role` 'system', required - `parts` ModelTextPartSchema[], required - `type` 'text', required - `text` string, required - `audio` FileSchema: Detailed information about a file - `id` string, required: Unique identifier for the file - `file_path` string, required: Path to the file in the storage system - `file_filename` string, required: Name of the file - `file_size` number, required: Size of the file in bytes - `file_mimetype` string, required: MIME type of the file - `file_url` string, required: URL to access the file - `created_at` string, date-time, nullable, required: Timestamp when the file was created - `start_ms` integer: Where the spoken text starts on the voice call timeline, in ms from the call start - `end_ms` integer: Where the spoken text ends on the voice call timeline, in ms from the call start - `html` boolean: When true, text holds the raw original inbound email HTML, stored verbatim. Clients sanitize and render it; the model receives markdown derived at read time. - `json` boolean: When true, text holds a JSON document, such as a trigger payload. Clients render it as JSON; the model receives the text as-is. - `start_timestamp` number: Timestamp when the message part started processing, in milliseconds - `end_timestamp` number: Timestamp when the message part finished processing, in milliseconds - ModelAssistantMessageSchema: Assistant message - `id` string: Unique identifier for the assistant message - `role` 'assistant', required - `parts` ModelAssistantMessagePartsSchema[], required - union: Parts of the assistant message - ModelTextPartSchema - … - ModelFilePartSchema - … - ModelToolCallPartSchema - … - ModelMessageReasoningSchema - … - ModelSourcePartSchema: Source URL for the message, typically used for annotations - … - `reactions` string: Prerendered emoji reactions on the message, injected at prompt build time - ModelUserMessageSchema: User message - `role` 'user', required - `parts` ModelUserMessagePartsSchema[], required - union: Parts of the user message: the user parts, plus the options or requests a business showed the contact - ModelTextPartSchema - … - ModelFilePartSchema - … - ModelImagePartSchema - … - ModelOptionSelectedPartSchema: Option selected by the user, typically used in multiple choice scenarios - … - ModelContactPartSchema - … - ModelLocationPartSchema - … - ModelReferencePartSchema: An entity the user tagged in the message. Validated and enriched server-side on send; org chats only. - … - ModelToolCallPartSchema - … - `name` string: Name of the user, used to give context on multiplayer chats - `member_role` 'customer' | 'staff' | 'agent' | 'user': Role of the message sender: customer/staff/agent for assistant chats, user for regular chats - `timestamp` string: Formatted timestamp for the message, used for time-awareness in conversations - `reactions` string: Prerendered emoji reactions on the message, injected at prompt build time - `message_id` string: Short reference to the stored message (the first uuid segment, 8 characters), injected at prompt build time so tools can target the message - ModelToolMessageSchema: Tool message - `id` string: Unique identifier for the assistant message - `role` 'tool', required - `parts` ModelToolResultPartSchema[], required - `type` 'tool_result', required - `id` string, required: Unique identifier for the tool call - `name` string, required: The name of the tool called - `parts` ModelResultPartResultPartsSchema[]: Parts of the tool call result - union: Parts of the tool call result - … - `result` unknown - `refresh_tools` boolean: Runtime-only signal: when true, the agent loop rebuilds its tool set before the next step (e.g. after enable_tools / disable_tools). Stripped before the result is persisted. - `stop` boolean: Runtime-only signal: when true, the agent loop ends after this step instead of spawning the next turn (e.g. close_conversation with stop: true). Stripped before the result is persisted. - `is_error` boolean: Indicates if the tool call resulted in an error - `timestamp` number: Timestamp of the tool call in milliseconds - `start_timestamp` number: Timestamp when the message part started processing, in milliseconds - `end_timestamp` number: Timestamp when the message part finished processing, in milliseconds - ModelEventMessageSchema - `role` 'event', required - `parts` ModelEventMessagePartsSchema[], required - union: Parts of the event message - ModelEventAssignmentPartSchema: Assignment event part - text generated from locales - … - ModelEventStatusChangePartSchema: Status change event part (user-visible) - text generated from locales - … - ModelEventAiStatusPartSchema: AI toggle event part - text generated from locales - … - ModelEventMuteChangePartSchema: Mute change event part - … - ModelEventHandoverPartSchema: Another app on the channel passed, took or requested the conversation (Meta handover protocol) - … - ModelEventFollowUpPartSchema: Follow-up event — AI re-engaging an inactive conversation - … - ModelEventPaymentPartSchema: Payment event — a checkout the customer completed - … - ModelEventAnalysisPartSchema: Analysis event — AI post-conversation analysis (CSAT, etc.) - … - ModelEventReferralPartSchema: Referral event — conversation initiated or resumed from an ad, post, or story - … - ModelEventApprovalDecisionPartSchema: Approval decision event — a pending action was accepted or rejected by a chat member. The decider is the owner of the parent ChatMessage. - … - ModelEventQuestionsAnsweredPartSchema: Questions answered event — a pending ask_questions call was answered by a chat member. The answerer is the owner of the parent ChatMessage. - … - ModelEventLocationSharedPartSchema: Location shared event — a pending request_location call was answered by a chat member. The sharer is the owner of the parent ChatMessage. - … - ModelEventContactUpdatePartSchema: AI updated one or more contact properties. Emitted from the update_contact tool callback or the post-conversation analysis pass. - … - ModelEventConnectionConnectedPartSchema: Connection-connected event: the user connected an app in response to request_connection. - … - ModelEventAgentRunStartedPartSchema: Run started — the first message of every run chat, recording what fired it. - … - ModelEventAgentRunFinishedPartSchema: Sub-agent run finished — posted to the chat that dispatched it, so the conversation can pick the result up. - … - ModelEventReminderPartSchema: Reminder fired — a wake-up the AI scheduled on this chat came due. - … - ModelEventMemberJoinedPartSchema: A person was added to the chat; the event owner is who added them. - … - ModelEventMemberLeftPartSchema: A person left the chat or was removed; the event owner is who did it. - … - ModelEventCallStartedPartSchema: Voice call started — the turns that follow, up to event_call_ended, are its transcript. - … - ModelEventCallEndedPartSchema: Voice call ended — closes the call event_call_started opened; the messages between the two are the call. - … - `name` string - `member_role` 'customer' | 'staff' | 'agent' | 'user': Role of the message sender: customer/staff/agent for assistant chats, user for regular chats - `timestamp` string - `reactions` string: Prerendered emoji reactions on the message, injected at prompt build time - `message_id` string: Short reference to the stored message (the first uuid segment, 8 characters), injected at prompt build time so tools can target the message - ModelNoteMessageSchema - `role` 'note', required - `parts` ModelUserPartsSchema[], required - union: User message parts - ModelTextPartSchema - … - ModelUserFilePartSchema: A file sent in a message. The server writes its transcript and description. - … - ModelImagePartSchema - … - ModelOptionSelectedPartSchema: Option selected by the user, typically used in multiple choice scenarios - … - ModelContactPartSchema - … - ModelLocationPartSchema - … - ModelReferencePartSchema: An entity the user tagged in the message. Validated and enriched server-side on send; org chats only. - … - `name` string: Name of the staff member who wrote the note - `member_role` 'customer' | 'staff' | 'agent' | 'user': Role of the message sender: customer/staff/agent for assistant chats, user for regular chats - `timestamp` string: Formatted timestamp for the note, used for time-awareness in conversations - `member` ChatMemberSchema: The member of the chat - `id` string, required - `role` 'ADMIN' | 'MEMBER', required: The role of the member in the chat - `user` UserPublicSchema - `id` string, required - `name` string, nullable, required - `avatar` string, nullable, required - `session` PublicSessionSchema: Data that is publicly accessible for a session - `id` string, required - `contact_channel` PublicContactChannelSchema: Schema for the public contact channel - `id` string, required - `type` 'internal' | 'org' | 'agent' | 'custom' | 'whatsapp_bot' | 'messenger_bot' | 'instagram_dm' | 'tiktok_dm' | 'telegram_bot' | 'slack_bot' | 'teams_bot' | 'gmail' | 'outlook' | 'twilio' | 'telnyx' | 'email' | 'smpp', required: The channel type - `user_id` string, required: The unique identifier for the contact channel, e.g Phone Number or User ID - `avatar` string, nullable, required: The avatar for the contact channel, e.g X Avatar URL - `name` string, nullable, required: The name for the contact channel, e.g Full Name - `username` string, nullable, required: The username for the contact channel, e.g Username - `email` string, email, nullable, required: The email for the contact channel, e.g Email - `phone` string, nullable, required: The phone number for the contact channel, e.g Phone Number - `country` string, nullable, required: The country code associated with the contact channel, e.g US for United States - `agent` string, nullable, required: The user agent associated with the contact channel - `ip` string, nullable, required: The IP address associated with the contact channel - `language` string, nullable, required: The language code associated with the contact channel, e.g en for English - `link` string: A link to the contact channel, e.g a link to the social media profile - `contact` PublicContactSchema, required: Schema for the contact - `id` string, required - `name` string, nullable, required - `blocked` boolean, required - `unsubscribed` boolean, required - `ai_replies` boolean, required - `is_admin` boolean, required - `segments` SegmentLimitedSchema[] - `id` string, required - `name` string, required - `color` 'red' | 'orange' | 'amber' | 'yellow' | 'lime' | 'green' | 'teal' | 'cyan' | 'sky' | 'blue' | 'indigo' | 'violet' | 'purple' | 'fuchsia' | 'pink' | 'rose' | 'neutral', required: Accent color, by name - `contacts_count` number, required - `created_at` string, date-time, required - `updated_at` string, date-time, required - `agent` AgentLimitedSchema: A reduced agent reference - `id` string, required - `name` string, required - `icon` union, required: A picked icon or emoji. Null = the generated face, unless a custom image is set. - string, emoji: The emoji of a curated icon a user can pick for a table, view, field, or other entity - 'TableCellsIcon' | 'DatabaseIcon' | 'DocumentTextIcon' | 'DocumentChartBarIcon' | 'ClipboardDocumentListIcon' | 'ClipboardDocumentCheckIcon' | 'FolderIcon' | 'ArchiveBoxIcon' | 'InboxIcon' | 'BookOpenIcon' | 'BookmarkIcon' | 'NewspaperIcon' | 'RectangleStackIcon' | 'PencilSquareIcon' | 'UserIcon' | 'UsersIcon' | 'UserGroupIcon' | 'UserPlusIcon' | 'IdentificationIcon' | 'FaceSmileIcon' | 'HandThumbUpIcon' | 'HeartIcon' | 'StarIcon' | 'CheckBadgeIcon' | 'TrophyIcon' | 'CrownIcon' | 'ChatBubbleLeftIcon' | 'ChatBubbleLeftRightIcon' | 'EnvelopeIcon' | 'EnvelopeOpenIcon' | 'PhoneIcon' | 'DevicePhoneMobileIcon' | 'MegaphoneIcon' | 'BellIcon' | 'PaperAirplaneIcon' | 'AtSymbolIcon' | 'RssIcon' | 'LifebuoyIcon' | 'ShoppingCartIcon' | 'ShoppingBagIcon' | 'BuildingStorefrontIcon' | 'CreditCardIcon' | 'BanknotesIcon' | 'CurrencyDollarIcon' | 'CurrencyEuroIcon' | 'ReceiptPercentIcon' | 'WalletIcon' | 'CoinsIcon' | 'GiftIcon' | 'TagIcon' | 'TicketIcon' | 'ScaleIcon' | 'TruckIcon' | 'CubeIcon' | 'CalendarIcon' | 'CalendarDaysIcon' | 'CalendarDateRangeIcon' | 'ClockIcon' | 'FlagIcon' | 'CheckCircleIcon' | 'ListBulletIcon' | 'QueueListIcon' | 'FunnelIcon' | 'ChartBarIcon' | 'ChartPieIcon' | 'PresentationChartLineIcon' | 'ArrowTrendingUpIcon' | 'BriefcaseIcon' | 'WrenchScrewdriverIcon' | 'Cog6ToothIcon' | 'KeyIcon' | 'LockClosedIcon' | 'ShieldCheckIcon' | 'BoltIcon' | 'LightBulbIcon' | 'BeakerIcon' | 'BugAntIcon' | 'CpuChipIcon' | 'CodeBracketIcon' | 'CommandLineIcon' | 'ServerIcon' | 'LinkIcon' | 'HomeIcon' | 'HomeModernIcon' | 'BuildingOfficeIcon' | 'BuildingOffice2Icon' | 'BuildingLibraryIcon' | 'MapPinIcon' | 'MapIcon' | 'GlobeAltIcon' | 'GlobeAmericasIcon' | 'RocketLaunchIcon' | 'PlaneIcon' | 'CarIcon' | 'SunIcon' | 'MoonIcon' | 'FireIcon' | 'SparklesIcon' | 'CakeIcon' | 'AcademicCapIcon' | 'ScissorsIcon' | 'SwatchIcon' | 'PaintBrushIcon' | 'CoffeeIcon' | 'UtensilsIcon' | 'LeafIcon' | 'DumbbellIcon' | 'HeartPulseIcon' | 'PawPrintIcon' | 'StethoscopeIcon' | 'CameraIcon' | 'PhotoIcon' | 'FilmIcon' | 'VideoCameraIcon' | 'MicrophoneIcon' | 'MusicalNoteIcon' | 'SpeakerWaveIcon' | 'PlayCircleIcon' | 'TvIcon' | 'RadioIcon' | 'PuzzlePieceIcon' | 'GamepadIcon': The name of a curated icon a user can pick for a table, view, field, or other entity - `color` 'red' | 'orange' | 'amber' | 'yellow' | 'lime' | 'green' | 'teal' | 'cyan' | 'sky' | 'blue' | 'indigo' | 'violet' | 'purple' | 'fuchsia' | 'pink' | 'rose' | 'neutral', required: The identity color, reused by every surface that carries the agent - `shape` 'square' | 'round' | 'pebble' | 'slate' | 'beam' | 'bloom' | 'arch' | 'clave', required: The silhouette of a generated agent face - `avatar_url` string, nullable, required: The agent as an image, either the custom picture or the PNG snapshot of its face or icon - `seen_at` string, date-time, nullable - `status` 'RUNNING' | 'COMPLETED' | 'FAILED' | 'CANCELED', required: The chat status - `error` string: Error message if the message failed - `broadcast_id` string: ID of the broadcast this message originates from - `is_broadcast_message` boolean: Whether this message was sent via a broadcast template - `channel_type` 'internal' | 'org' | 'agent' | 'custom' | 'whatsapp_bot' | 'messenger_bot' | 'instagram_dm' | 'tiktok_dm' | 'telegram_bot' | 'slack_bot' | 'teams_bot' | 'gmail' | 'outlook' | 'twilio' | 'telnyx' | 'email' | 'smpp': The channel the message arrived through, if any - `usage` ModelUsageSchema: The usage information for the message - `input_tokens` number: Number of input tokens used by the model - `output_tokens` number: Number of output tokens generated by the model - `total_tokens` number: Total number of tokens used by the model - `reasoning_tokens` number: Number of reasoning tokens used by the model - `input_tokens_cache_read` number: Number of input tokens cached read by the model - `input_tokens_cache_write` number: Number of input tokens cached written by the model - `turns` ModelUsageTurnSchema[] - `input_tokens` number: Number of input tokens used by the model - `output_tokens` number: Number of output tokens generated by the model - `total_tokens` number: Total number of tokens used by the model - `reasoning_tokens` number: Number of reasoning tokens used by the model - `input_tokens_cache_read` number: Number of input tokens cached read by the model - `input_tokens_cache_write` number: Number of input tokens cached written by the model - `cost` ModelUsageCostSchema: The cost of a message, at the rates it is billed at - `total` number, required: Amount billed for the message, in USD - `base` number, required: Amount at the chat's base rate, before any discount, in USD - `lines` ModelUsageCostLinesSchema, required: Share of the base amount per token type, in USD - `input` number, required - `output` number, required - `reasoning` number, required - `cache_read` number, required - `cache_write` number, required - `delivered_at` string, date-time, nullable: When the message was delivered to the recipient - `reactions` ChatMessageReactionSchema[]: Emoji reactions on the message - `emoji` string, required - `member_id` string: Reacting member; absent when the AI reacted - `created_at` string, date-time, nullable, required - `updated_at` string, date-time, nullable, required --- [API](https://skmtc.dev/useinvent/apis/invent-api.md) · [All operations](https://skmtc.dev/useinvent/apis/invent-api/llms.txt) · [OpenAPI document](https://skmtc.dev/useinvent/apis/invent-api/revisions/98824f3fde82?raw)