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The best free open source tools: Agents & orchestration (2026)

4 tools tested by Loucash, ranked by his score. For each: what it replaces, what it saves, and the prompt that installs it.

  1. Hermes Agent

    Score 10/10

    An agent that learns from you and grows with use. Wire it to your second brain, run it on a local model, and you have a personal assistant that talks to nobody but you.

    Replaces:ChatGPT,Claude,CursorSaves €23/month
    See the card →See the tool ↗

  2. n8n

    Score 9/10

    Wire your tools together and let it run: when this happens, do that. Self-hosted, no task counter stopping you mid-month.

    Replaces:Zapier,MakeSaves €26/month
    See the card →See the tool ↗

  3. OpenCode

    Score 8/10

    The coding agent that runs in your terminal or inside your editor, and belongs to no model vendor. You plug in Claude, GPT, Gemini or a model running on your own machine, and you keep the editor you already use.

    Replaces:CursorSaves €17/month
    See the card →See the tool ↗

  4. OpenBot

    Score 7/10

    AI agents that each get their own computer: a real browser with their own logins, files and tools. The same idea as xAI's Grok Bot, except this one runs at home and costs nothing.

    Replaces:Grok Bot,ManusSaves €86/month
    See the card →See the tool ↗

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