Agenta: an open-source Claude Cowork alternative where you can use self-hosted models (and any harness)

Hey r/LocalLLaMA, I’m Mahmoud from Agenta. We built a self-hosted, more flexible, alternative to Claude Cowork . This short video shows how it works. I use it to build AI coworkers for my startup, like the marketing agent in the video. Or AI automations, like a daily report to our Slack about Reddit posts I should contribute to. You can switch between harnesses (right now Claude code, OpenAI Codex, or Pi, but we plan adding many more), and models (to use your self-hosted models). You can even your own ChatGPT or Claude subscription. You build agents by chatting with them. Each agent has its own instructions (agents.md), skills, and tools/MCPs.. You can provide feedback to the agent and it will edit its own configuration and improve. Each agent has its own work folder. I use it to build a wiki, for instance my marketing agent has knowledge of the product, the ICP, research about competitors that we built overtime. You can also turn the same agent into an automation that runs on a schedule or when something happens in another app. If this looks useful, check out the video and GitHub repo: Youtube: https://youtu.be/Y5l2BPRkKC8 Github: https://github.com/agenta-ai/agenta To self-host copy paste this prompt to your agent: 1. Install the Agenta self-hosting skill: npx skills add Agenta-AI/agenta-skills 2. Help me self-host Agenta with its repository. And if you end up using, would love your feedback (here, in github, or anywhere). submitted by /u/resiros [link] [comments]

Source: r/LocalLLaMA | 2026-07-28

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