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API Reference
Chats

Messages

Messages are individual communications within a chat thread.

Messages can include text, media attachments, rich link previews, special effects (like confetti or fireworks), and reactions. All messages are associated with a specific chat and sent from a phone number you own.

Messages support delivery status tracking, read receipts, and editing capabilities.

Send a URL as a link part to deliver it with a rich preview card showing the page’s title, description, and image (when available). A link part must be the only part in the message — it cannot be combined with text or media parts. To send a URL without a preview card, include it in a text part instead.

Limitations:

  • A link part cannot be combined with other parts in the same message.
  • Maximum URL length: 2,048 characters.
Send a message to an existing chat
chats.messages.send(strchat_id, MessageSendParams**kwargs) -> MessageSendResponse
POST/v3/chats/{chatId}/messages
Get messages from a chat
chats.messages.list(strchat_id, MessageListParams**kwargs) -> SyncListMessagesPagination[Message]
GET/v3/chats/{chatId}/messages
ModelsExpand Collapse
class SentMessage: …

A message that was sent (used in CreateChat and SendMessage responses)

id: str

Message identifier (UUID)

formatuuid
created_at: datetime

When the message was created

formatdate-time
delivery_status: Literal["pending", "queued", "sent", 2 more]

Current delivery status of a message

One of the following:
"pending"
"queued"
"sent"
"delivered"
"failed"
is_read: bool

Whether the message has been read

parts: List[Part]

Message parts in order (text, media, and link)

One of the following:
class TextPartResponse: …

A text message part

reactions: Optional[List[Reaction]]

Reactions on this message part

handle: ChatHandle
id: str

Unique identifier for this handle

formatuuid
handle: str

Phone number (E.164) or email address of the participant

joined_at: datetime

When this participant joined the chat

formatdate-time
service: ServiceType

Messaging service type

One of the following:
"iMessage"
"SMS"
"RCS"
is_me: Optional[bool]

Whether this handle belongs to the sender (your phone number)

left_at: Optional[datetime]

When they left (if applicable)

formatdate-time
status: Optional[Literal["active", "left", "removed"]]

Participant status

One of the following:
"active"
"left"
"removed"
is_me: bool

Whether this reaction is from the current user

type: ReactionType

Type of reaction. Standard iMessage tapbacks are love, like, dislike, laugh, emphasize, question. Custom emoji reactions have type “custom” with the actual emoji in the custom_emoji field. Sticker reactions have type “sticker” with sticker attachment details in the sticker field.

One of the following:
"love"
"like"
"dislike"
"laugh"
"emphasize"
"question"
"custom"
"sticker"
custom_emoji: Optional[str]

Custom emoji if type is “custom”, null otherwise

sticker: Optional[Sticker]

Sticker attachment details when reaction_type is “sticker”. Null for non-sticker reactions.

file_name: Optional[str]

Filename of the sticker

height: Optional[int]

Sticker image height in pixels

mime_type: Optional[str]

MIME type of the sticker image

url: Optional[str]

Presigned URL for downloading the sticker image (expires in 1 hour).

formaturi
width: Optional[int]

Sticker image width in pixels

type: Literal["text"]

Indicates this is a text message part

value: str

The text content

text_decorations: Optional[List[TextDecoration]]

Text decorations applied to character ranges in the value

range: List[int]

Character range [start, end) in the value string where the decoration applies. start is inclusive, end is exclusive. Characters are measured as UTF-16 code units. Most characters count as 1; some emoji count as 2.

animation: Optional[Literal["big", "small", "shake", 5 more]]

Animated text effect to apply. Mutually exclusive with style.

One of the following:
"big"
"small"
"shake"
"nod"
"explode"
"ripple"
"bloom"
"jitter"
style: Optional[Literal["bold", "italic", "strikethrough", "underline"]]

Text style to apply. Mutually exclusive with animation.

One of the following:
"bold"
"italic"
"strikethrough"
"underline"
class MediaPartResponse: …

A media attachment part

id: str

Unique attachment identifier

formatuuid
filename: str

Original filename

mime_type: str

MIME type of the file

reactions: Optional[List[Reaction]]

Reactions on this message part

handle: ChatHandle
id: str

Unique identifier for this handle

formatuuid
handle: str

Phone number (E.164) or email address of the participant

joined_at: datetime

When this participant joined the chat

formatdate-time
service: ServiceType

Messaging service type

One of the following:
"iMessage"
"SMS"
"RCS"
is_me: Optional[bool]

Whether this handle belongs to the sender (your phone number)

left_at: Optional[datetime]

When they left (if applicable)

formatdate-time
status: Optional[Literal["active", "left", "removed"]]

Participant status

One of the following:
"active"
"left"
"removed"
is_me: bool

Whether this reaction is from the current user

type: ReactionType

Type of reaction. Standard iMessage tapbacks are love, like, dislike, laugh, emphasize, question. Custom emoji reactions have type “custom” with the actual emoji in the custom_emoji field. Sticker reactions have type “sticker” with sticker attachment details in the sticker field.

One of the following:
"love"
"like"
"dislike"
"laugh"
"emphasize"
"question"
"custom"
"sticker"
custom_emoji: Optional[str]

Custom emoji if type is “custom”, null otherwise

sticker: Optional[Sticker]

Sticker attachment details when reaction_type is “sticker”. Null for non-sticker reactions.

file_name: Optional[str]

Filename of the sticker

height: Optional[int]

Sticker image height in pixels

mime_type: Optional[str]

MIME type of the sticker image

url: Optional[str]

Presigned URL for downloading the sticker image (expires in 1 hour).

formaturi
width: Optional[int]

Sticker image width in pixels

size_bytes: int

File size in bytes

type: Literal["media"]

Indicates this is a media attachment part

url: str

Presigned URL for downloading the attachment (expires in 1 hour).

formaturi
handle: ChatHandle
id: str

Unique identifier for this handle

formatuuid
handle: str

Phone number (E.164) or email address of the participant

joined_at: datetime

When this participant joined the chat

formatdate-time
service: ServiceType

Messaging service type

One of the following:
"iMessage"
"SMS"
"RCS"
is_me: Optional[bool]

Whether this handle belongs to the sender (your phone number)

left_at: Optional[datetime]

When they left (if applicable)

formatdate-time
status: Optional[Literal["active", "left", "removed"]]

Participant status

One of the following:
"active"
"left"
"removed"
is_me: bool

Whether this reaction is from the current user

type: ReactionType

Type of reaction. Standard iMessage tapbacks are love, like, dislike, laugh, emphasize, question. Custom emoji reactions have type “custom” with the actual emoji in the custom_emoji field. Sticker reactions have type “sticker” with sticker attachment details in the sticker field.

One of the following:
"love"
"like"
"dislike"
"laugh"
"emphasize"
"question"
"custom"
"sticker"
custom_emoji: Optional[str]

Custom emoji if type is “custom”, null otherwise

sticker: Optional[Sticker]

Sticker attachment details when reaction_type is “sticker”. Null for non-sticker reactions.

file_name: Optional[str]

Filename of the sticker

height: Optional[int]

Sticker image height in pixels

mime_type: Optional[str]

MIME type of the sticker image

url: Optional[str]

Presigned URL for downloading the sticker image (expires in 1 hour).

formaturi
width: Optional[int]

Sticker image width in pixels

sent_at: Optional[datetime]

When the message was actually sent (null if still queued)

formatdate-time
delivered_at: Optional[datetime]

When the message was delivered

formatdate-time
effect: Optional[MessageEffect]

iMessage effect applied to a message (screen or bubble effect)

name: Optional[str]

Name of the effect. Common values:

  • Screen effects: confetti, fireworks, lasers, sparkles, celebration, hearts, love, balloons, happy_birthday, echo, spotlight
  • Bubble effects: slam, loud, gentle, invisible
type: Optional[Literal["screen", "bubble"]]

Type of effect

One of the following:
"screen"
"bubble"
from_handle: Optional[ChatHandle]

The sender of this message as a full handle object

id: str

Unique identifier for this handle

formatuuid
handle: str

Phone number (E.164) or email address of the participant

joined_at: datetime

When this participant joined the chat

formatdate-time
service: ServiceType

Messaging service type

One of the following:
"iMessage"
"SMS"
"RCS"
is_me: Optional[bool]

Whether this handle belongs to the sender (your phone number)

left_at: Optional[datetime]

When they left (if applicable)

formatdate-time
status: Optional[Literal["active", "left", "removed"]]

Participant status

One of the following:
"active"
"left"
"removed"
preferred_service: Optional[ServiceType]

Messaging service type

One of the following:
"iMessage"
"SMS"
"RCS"
reply_to: Optional[ReplyTo]

Indicates this message is a threaded reply to another message

message_id: str

The ID of the message to reply to

formatuuid
part_index: Optional[int]

The specific message part to reply to (0-based index). Defaults to 0 (first part) if not provided. Use this when replying to a specific part of a multipart message.

formatint32
minimum0
service: Optional[ServiceType]

Messaging service type

One of the following:
"iMessage"
"SMS"
"RCS"
class MessageSendResponse: …

Response for sending a message to a chat

chat_id: str

Unique identifier of the chat this message was sent to

formatuuid
message: SentMessage

A message that was sent (used in CreateChat and SendMessage responses)

id: str

Message identifier (UUID)

formatuuid
created_at: datetime

When the message was created

formatdate-time
delivery_status: Literal["pending", "queued", "sent", 2 more]

Current delivery status of a message

One of the following:
"pending"
"queued"
"sent"
"delivered"
"failed"
is_read: bool

Whether the message has been read

parts: List[Part]

Message parts in order (text, media, and link)

One of the following:
class TextPartResponse: …

A text message part

reactions: Optional[List[Reaction]]

Reactions on this message part

handle: ChatHandle
id: str

Unique identifier for this handle

formatuuid
handle: str

Phone number (E.164) or email address of the participant

joined_at: datetime

When this participant joined the chat

formatdate-time
service: ServiceType

Messaging service type

One of the following:
"iMessage"
"SMS"
"RCS"
is_me: Optional[bool]

Whether this handle belongs to the sender (your phone number)

left_at: Optional[datetime]

When they left (if applicable)

formatdate-time
status: Optional[Literal["active", "left", "removed"]]

Participant status

One of the following:
"active"
"left"
"removed"
is_me: bool

Whether this reaction is from the current user

type: ReactionType

Type of reaction. Standard iMessage tapbacks are love, like, dislike, laugh, emphasize, question. Custom emoji reactions have type “custom” with the actual emoji in the custom_emoji field. Sticker reactions have type “sticker” with sticker attachment details in the sticker field.

One of the following:
"love"
"like"
"dislike"
"laugh"
"emphasize"
"question"
"custom"
"sticker"
custom_emoji: Optional[str]

Custom emoji if type is “custom”, null otherwise

sticker: Optional[Sticker]

Sticker attachment details when reaction_type is “sticker”. Null for non-sticker reactions.

file_name: Optional[str]

Filename of the sticker

height: Optional[int]

Sticker image height in pixels

mime_type: Optional[str]

MIME type of the sticker image

url: Optional[str]

Presigned URL for downloading the sticker image (expires in 1 hour).

formaturi
width: Optional[int]

Sticker image width in pixels

type: Literal["text"]

Indicates this is a text message part

value: str

The text content

text_decorations: Optional[List[TextDecoration]]

Text decorations applied to character ranges in the value

range: List[int]

Character range [start, end) in the value string where the decoration applies. start is inclusive, end is exclusive. Characters are measured as UTF-16 code units. Most characters count as 1; some emoji count as 2.

animation: Optional[Literal["big", "small", "shake", 5 more]]

Animated text effect to apply. Mutually exclusive with style.

One of the following:
"big"
"small"
"shake"
"nod"
"explode"
"ripple"
"bloom"
"jitter"
style: Optional[Literal["bold", "italic", "strikethrough", "underline"]]

Text style to apply. Mutually exclusive with animation.

One of the following:
"bold"
"italic"
"strikethrough"
"underline"
class MediaPartResponse: …

A media attachment part

id: str

Unique attachment identifier

formatuuid
filename: str

Original filename

mime_type: str

MIME type of the file

reactions: Optional[List[Reaction]]

Reactions on this message part

handle: ChatHandle
id: str

Unique identifier for this handle

formatuuid
handle: str

Phone number (E.164) or email address of the participant

joined_at: datetime

When this participant joined the chat

formatdate-time
service: ServiceType

Messaging service type

One of the following:
"iMessage"
"SMS"
"RCS"
is_me: Optional[bool]

Whether this handle belongs to the sender (your phone number)

left_at: Optional[datetime]

When they left (if applicable)

formatdate-time
status: Optional[Literal["active", "left", "removed"]]

Participant status

One of the following:
"active"
"left"
"removed"
is_me: bool

Whether this reaction is from the current user

type: ReactionType

Type of reaction. Standard iMessage tapbacks are love, like, dislike, laugh, emphasize, question. Custom emoji reactions have type “custom” with the actual emoji in the custom_emoji field. Sticker reactions have type “sticker” with sticker attachment details in the sticker field.

One of the following:
"love"
"like"
"dislike"
"laugh"
"emphasize"
"question"
"custom"
"sticker"
custom_emoji: Optional[str]

Custom emoji if type is “custom”, null otherwise

sticker: Optional[Sticker]

Sticker attachment details when reaction_type is “sticker”. Null for non-sticker reactions.

file_name: Optional[str]

Filename of the sticker

height: Optional[int]

Sticker image height in pixels

mime_type: Optional[str]

MIME type of the sticker image

url: Optional[str]

Presigned URL for downloading the sticker image (expires in 1 hour).

formaturi
width: Optional[int]

Sticker image width in pixels

size_bytes: int

File size in bytes

type: Literal["media"]

Indicates this is a media attachment part

url: str

Presigned URL for downloading the attachment (expires in 1 hour).

formaturi
handle: ChatHandle
id: str

Unique identifier for this handle

formatuuid
handle: str

Phone number (E.164) or email address of the participant

joined_at: datetime

When this participant joined the chat

formatdate-time
service: ServiceType

Messaging service type

One of the following:
"iMessage"
"SMS"
"RCS"
is_me: Optional[bool]

Whether this handle belongs to the sender (your phone number)

left_at: Optional[datetime]

When they left (if applicable)

formatdate-time
status: Optional[Literal["active", "left", "removed"]]

Participant status

One of the following:
"active"
"left"
"removed"
is_me: bool

Whether this reaction is from the current user

type: ReactionType

Type of reaction. Standard iMessage tapbacks are love, like, dislike, laugh, emphasize, question. Custom emoji reactions have type “custom” with the actual emoji in the custom_emoji field. Sticker reactions have type “sticker” with sticker attachment details in the sticker field.

One of the following:
"love"
"like"
"dislike"
"laugh"
"emphasize"
"question"
"custom"
"sticker"
custom_emoji: Optional[str]

Custom emoji if type is “custom”, null otherwise

sticker: Optional[Sticker]

Sticker attachment details when reaction_type is “sticker”. Null for non-sticker reactions.

file_name: Optional[str]

Filename of the sticker

height: Optional[int]

Sticker image height in pixels

mime_type: Optional[str]

MIME type of the sticker image

url: Optional[str]

Presigned URL for downloading the sticker image (expires in 1 hour).

formaturi
width: Optional[int]

Sticker image width in pixels

sent_at: Optional[datetime]

When the message was actually sent (null if still queued)

formatdate-time
delivered_at: Optional[datetime]

When the message was delivered

formatdate-time
effect: Optional[MessageEffect]

iMessage effect applied to a message (screen or bubble effect)

name: Optional[str]

Name of the effect. Common values:

  • Screen effects: confetti, fireworks, lasers, sparkles, celebration, hearts, love, balloons, happy_birthday, echo, spotlight
  • Bubble effects: slam, loud, gentle, invisible
type: Optional[Literal["screen", "bubble"]]

Type of effect

One of the following:
"screen"
"bubble"
from_handle: Optional[ChatHandle]

The sender of this message as a full handle object

id: str

Unique identifier for this handle

formatuuid
handle: str

Phone number (E.164) or email address of the participant

joined_at: datetime

When this participant joined the chat

formatdate-time
service: ServiceType

Messaging service type

One of the following:
"iMessage"
"SMS"
"RCS"
is_me: Optional[bool]

Whether this handle belongs to the sender (your phone number)

left_at: Optional[datetime]

When they left (if applicable)

formatdate-time
status: Optional[Literal["active", "left", "removed"]]

Participant status

One of the following:
"active"
"left"
"removed"
preferred_service: Optional[ServiceType]

Messaging service type

One of the following:
"iMessage"
"SMS"
"RCS"
reply_to: Optional[ReplyTo]

Indicates this message is a threaded reply to another message

message_id: str

The ID of the message to reply to

formatuuid
part_index: Optional[int]

The specific message part to reply to (0-based index). Defaults to 0 (first part) if not provided. Use this when replying to a specific part of a multipart message.

formatint32
minimum0
service: Optional[ServiceType]

Messaging service type

One of the following:
"iMessage"
"SMS"
"RCS"
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