You can create a chat on the Signal app with individuals or groups for private, secure communication.

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You can add people on Telegram by inviting them, create groups with your contacts, and add new people to existing groups.

The Character.AI chatbot service includes several features that allow you to interact with AI characters, while also letting the characters communicate with each other. The ability to create a group ...

The SDK is built on the open source Model Context Protocol (MCP), Altman said. That means developers that already use MCP ...