Hermes Agent is a free AI agent released under the MIT license. You run it yourself, either through the desktop app for macOS and Windows, a terminal install on Linux, or a cloud deployment.
It keeps a persistent memory, can create its own skills over time, and connects to Telegram, Discord, Slack, WhatsApp, Signal, email and the command line, so one agent follows you across platforms. It suits people who prefer control over their own setup.