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

Facebook Inc said on Wednesday it would start replacing the direct messaging service within Instagram with a version of its Messenger app, the first major step in its plan to tie together messaging ...

Learn how to build custom apps in ChatGPT with OpenAI’s Apps SDK and MCP. Step-by-step guide for developers and AI enthusiasts of all ages ...

Viber is a cross-platform messaging app that lets you send text messages, and make phone and video calls.

To provide secure and flexible access to Slack’s conversational data, it is offering a real-time search API and MCP server.