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Attachment { type, id, duration, 9 more }
type: "unknown" | "img" | "video" | "audio"

Attachment type.

One of the following:
"unknown"
"img"
"video"
"audio"
id?: string

Attachment identifier (typically an mxc:// URL). Use with /v1/assets/download to get a local file path.

duration?: number

Duration in seconds (audio/video).

fileName?: string

Original filename if available.

fileSize?: number

File size in bytes if known.

isGif?: boolean

True if the attachment is a GIF.

isSticker?: boolean

True if the attachment is a sticker.

isVoiceNote?: boolean

True if the attachment is a voice note.

mimeType?: string

MIME type if known (e.g., ‘image/png’).

posterImg?: string

Preview image URL for video attachments (poster frame). May be temporary or local-only to this device; download promptly if durable access is needed.

size?: Size { height, width }

Pixel dimensions of the attachment: width/height in px.

height?: number
width?: number
srcURL?: string

Public URL or local file path to fetch the asset. May be temporary or local-only to this device; download promptly if durable access is needed.

Error { code, message, details }
code: string

Machine-readable error code

message: string

Error message

details?: ValidationDetails { issues } | Record<string, unknown> | unknown

Additional error details for debugging

One of the following:
ValidationDetails { issues }

Validation error details

issues: Array<Issue>

List of validation issues

code: string

Validation issue code

message: string

Human-readable description of the validation issue

path: Array<string | number>

Path pointing to the invalid field within the payload

One of the following:
string
number
Record<string, unknown>
unknown
Message { id, accountID, chatID, 11 more }
id: string

Message ID.

accountID: string

Beeper account ID the message belongs to.

chatID: string

Unique identifier of the chat.

senderID: string

Sender user ID.

sortKey: string

A unique, sortable key used to sort messages.

timestamp: string

Message timestamp.

formatdate-time
attachments?: Array<Attachment { type, id, duration, 9 more } >

Attachments included with this message, if any.

type: "unknown" | "img" | "video" | "audio"

Attachment type.

One of the following:
"unknown"
"img"
"video"
"audio"
id?: string

Attachment identifier (typically an mxc:// URL). Use with /v1/assets/download to get a local file path.

duration?: number

Duration in seconds (audio/video).

fileName?: string

Original filename if available.

fileSize?: number

File size in bytes if known.

isGif?: boolean

True if the attachment is a GIF.

isSticker?: boolean

True if the attachment is a sticker.

isVoiceNote?: boolean

True if the attachment is a voice note.

mimeType?: string

MIME type if known (e.g., ‘image/png’).

posterImg?: string

Preview image URL for video attachments (poster frame). May be temporary or local-only to this device; download promptly if durable access is needed.

size?: Size { height, width }

Pixel dimensions of the attachment: width/height in px.

height?: number
width?: number
srcURL?: string

Public URL or local file path to fetch the asset. May be temporary or local-only to this device; download promptly if durable access is needed.

isSender?: boolean

True if the authenticated user sent the message.

isUnread?: boolean

True if the message is unread for the authenticated user. May be omitted.

linkedMessageID?: string

ID of the message this is a reply to, if any.

reactions?: Array<Reaction { id, participantID, reactionKey, 2 more } >

Reactions to the message, if any.

id: string

Reaction ID, typically ${participantID}${reactionKey} if multiple reactions allowed, or just participantID otherwise.

participantID: string

User ID of the participant who reacted.

reactionKey: string

The reaction key: an emoji (😄), a network-specific key, or a shortcode like “smiling-face”.

emoji?: boolean

True if the reactionKey is an emoji.

imgURL?: string

URL to the reaction’s image. May be temporary or local-only to this device; download promptly if durable access is needed.

senderName?: string

Resolved sender display name (impersonator/full name/username/participant name).

text?: string

Plain-text body if present. May include a JSON fallback with text entities for rich messages.

type?: "TEXT" | "NOTICE" | "IMAGE" | 7 more

Message content type. Useful for distinguishing reactions, media messages, and state events from regular text messages.

One of the following:
"TEXT"
"NOTICE"
"IMAGE"
"VIDEO"
"VOICE"
"AUDIO"
"FILE"
"STICKER"
"LOCATION"
"REACTION"
Reaction { id, participantID, reactionKey, 2 more }
id: string

Reaction ID, typically ${participantID}${reactionKey} if multiple reactions allowed, or just participantID otherwise.

participantID: string

User ID of the participant who reacted.

reactionKey: string

The reaction key: an emoji (😄), a network-specific key, or a shortcode like “smiling-face”.

emoji?: boolean

True if the reactionKey is an emoji.

imgURL?: string

URL to the reaction’s image. May be temporary or local-only to this device; download promptly if durable access is needed.

User { id, cannotMessage, email, 5 more }

User the account belongs to.

id: string

Stable Beeper user ID. Use as the primary key when referencing a person.

cannotMessage?: boolean

True if Beeper cannot initiate messages to this user (e.g., blocked, network restriction, or no DM path). The user may still message you.

email?: string

Email address if known. Not guaranteed verified.

fullName?: string

Display name as shown in clients (e.g., ‘Alice Example’). May include emojis.

imgURL?: string

Avatar image URL if available. May be temporary or local-only to this device; download promptly if durable access is needed.

isSelf?: boolean

True if this user represents the authenticated account’s own identity.

phoneNumber?: string

User’s phone number in E.164 format (e.g., ‘+14155552671’). Omit if unknown.

username?: string

Human-readable handle if available (e.g., ‘@alice’). May be network-specific and not globally unique.