1-on-1 chat (Direct messages)
1-on-1 chats, also called direct messages, are private conversations between exactly two users.

1-on-1 chats are ideal for use cases such as:
- Buyer–seller or customer–support conversations
- Private messaging between friends or colleagues
- Direct messages within a community or social app
Each 1-on-1 chat works just like any other TalkJS conversation, but it always has exactly two participants, no guests or additional users can join.
You can have as many 1-on-1 conversations in your chat as supported by the number of users on your plan. Each user can participate in as many direct message conversations as needed.
If you’re building larger or public conversations, see Group chat.