OpenClaw

OpenClaw is the open-source project that made 'a personal agent in your group chat' a mainstream idea. Self-host it, plug in your own model API keys, and message it from WhatsApp, Telegram, Discord, iMessage, and dozens of other channels: it answers, executes multi-step tasks, watches inboxes and calendars, and automates routines — with the conversation surface being the messaging apps you already live in, rather than a new app or IDE. Renamed from Clawdbot/Moltbot to OpenClaw during its 2026 rise, it became one of the year's fastest-growing open-source projects, with a community large enough that star counts quoted in press vary wildly by source (six figures by most accounts; verify live). Because it is self-hosted and bring-your-own-key, it is the privacy-maximalist option in the personal-agent category: your messages and tool credentials never pass through a vendor's agent backend. The costs of that design are real — you run the infrastructure, you manage upgrades (releases move fast, with beta features like gateway session attach), and setup is markedly less turnkey than hosted assistants. OpenClaw is aimed at technical users and tinkerers who want maximum capability and control from a personal agent, and are comfortable owning the operations.