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AI · alternatives · 2026

24 alternatives to mikrokhoros

Open source AI agent harness for object-first worlds

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 4 we have checked on their own sites, 4 of them free or with a free tier.

  1. 1
    Harness by Autonomousfree tier, from $149/mo▲292

    Every coding agent, every machine, one command center.

    7d ago · autonomous.ai · its alternatives →

  2. 2
    Osaurus▲534

    Open source agents that run 100% locally on your Mac

    Jul 2026 · osaurus.ai · its alternatives →

  3. 3
    HarnessRouter Community Editionfree tier, from $20/mo▲397

    Open-source unified interface for agent harnesses

    Aug 2026 · harnessrouter.ai · its alternatives →

  4. 4
    OpenHuman▲549

    An open source AI harness built with the human in mind

    May 2026 · tinyhumans.ai · its alternatives →

  5. 5

    Composable agent harness where everything is a plugin

    Aug 2026 · github.com · its alternatives →

  6. 6

    Hey HN! Wanted to show our open source agent harness called Gambit. If you’re not familiar, agent harnesses are sort of like an operating system for an agent... they handle tool calling, planning, context window management, and don’t require as much developer orchestration. Normally you might see an agent orchestration framework pipeline like: compute -> compute -> compute -> LLM -> compute -> compute -> LLM we invert this so with an agent harness, it’s more like: LLM -> LLM -> LLM -> compute -> LLM -> LLM -> compute -> LLM Essentially you describe each agent in either a self contained…

    Jan 2026 · github.com · its alternatives →

  7. 7

    Build production agents with harness and sandbox

    Apr 2026 · openai.com · its alternatives →

  8. 8

    A collection of open-source TypeScript tools by @enmanuelmag. heimdall-mcp for MCP proxy telemetry. agent-harness-kit for multi-agent orchestration.

    May 2026 · ahk.cardor.dev · its alternatives →

  9. 9
    OpenBotfree▲362

    Grok Bot alternative: free, local, open-source, multiplayer

    23d ago · openbot.run · its alternatives →

  10. 10

    The open-source framework for real-time AI voice

    2025 · videosdk.live · its alternatives →

  11. 11

    OpenAgents - The collaboration OS for AI agents. Contribute to openagents-org/openagents development by creating an account on GitHub.

    Apr 2026 · open-agents.dev · its alternatives →

  12. 12

    A lightweight, single-binary coding agent harness written in Go. Anthropic, OpenAI, Kimi, DeepSeek, Google Gemini, Ollama, managed llama.cpp models, five built-in tools, three run modes, extensions in any language, and a built-in Telegram bridge.

    May 2026 · zot.sh · its alternatives →

  13. 13OS
  14. 14

    Open-source body for the AI agent you already run

    15d ago · opencharm.dev · its alternatives →

  15. 15

    Hey HN. http://peerd.ai is an AI agent harness that lives entirely in your browser as a web extension. You don’t have to install a separate “AI browser”. You don’t have to bolt on or run some external process or manage a clunky mcp integration. It’s just a fully contained web extension, written in no build vanilla JS with minimal non-browser dependencies, using your own provider keys, and Apache 2. This isn’t just a fun hack. While it has largely been a solo side project, I genuinely believe the browser and the web could be the most natural platform for AI agents to operate safely,…

    Jun 2026 · github.com · its alternatives →

  16. 16

    Open-source AI coworkers that each get a computer of their own: a browser, files and tools, with every action decided before it happens and recorded after. Bring any AG-UI agent. - CopilotKit/OpenBot

    Aug 2026 · github.com · its alternatives →

  17. 17

    Minimal kernel to make any AI coding agent stateful. Clone, point your agent, go. - oguzbilgic/agent-kernel

    Mar 2026 · github.com · its alternatives →

  18. 18

    TL;DR: we built a framework-agnostic agent runtime that uses gVisor for isolation and runs on k8s. It’s open-source under AGPLv3 Recently we’ve been working on a customer support “AI assistant” - essentially an interactive knowledge base/L1 support but with an option to touch resources that belong to a customer it’s talking to. We found existing tools to be lacking in these aspects: 1. Fully intercepted i/o. We wanted to trace out LLM calls as well as any other networking calls attempted by the harness so that guardrails and audit trails apply to all current and future systems…

    Jul 2026 · github.com · its alternatives →

  19. 19

    Observal is self-hosted registry for your coding agent extensions with a built in insight engine. Setup Observal, define the scope and share your Skills, MCPs and Agents with your peers. - Observal/Observal

    Jul 2026 · github.com · its alternatives →

  20. 20
    Monoid▲12

    Open-source platform for AI agents

    2023 · its alternatives →

  21. 21

    Open Source Reliability Harness: Make your agents follow rules. One line of code to‎ ‎enforce, trace, and improve. ‎ ‎ - GitHub - open-bias/open-bias: Open Source Reliability Harness: Make your agents follow rules. One line of code to‎ ‎enforce, trace, and improve. ‎ ‎

    Apr 2026 · github.com · its alternatives →

  22. 22

    Managed cloud for open-source AI agents

    Jul 2026 · mantlecore.ai · its alternatives →

  23. 23

    Open source browser automation library for agents

    2025 · github.com · its alternatives →

  24. 24

    Open-source AI agent platform — own it, run any model

    Jul 2026 · ibl.ai · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →