nowfound

AI · alternatives · 2026

24 alternatives to Tetriz Harness

Turn what your team learns into everyone’s agent setup

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 7 we have checked on their own sites, 7 of them free or with a free tier.

  1. 1
    Harness²▲177

    Harness the agent. Then harness its self-improvement.

    1d ago · github.com · its alternatives →

  2. 2
    Harness by Autonomousfree tier, from $149/mo▲287

    Every coding agent, every machine, one command center.

    6d ago · autonomous.ai · its alternatives →

  3. 3

    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 →

  4. 4
    devpit▲117

    A native control room for your Claude Code agents

    18d ago · devpit.app · its alternatives →

  5. 5
    HarnessRouter Community Editionfree tier, from $20/mo▲397

    Open-source unified interface for agent harnesses

    Aug 2026 · harnessrouter.ai · its alternatives →

  6. 6

    AI-Native, Simple & Collaborative Wire Harness Design

    8d ago · harnesshive.com · its alternatives →

  7. 7

    Scan AI agent Skills for risks before you install them

    15d ago · agentguard-sigma-five.vercel.app · its alternatives →

  8. 8
    Ayven▲160

    Carries and drives your team's agenda

    Sep 2026 · ayven.ai · its alternatives →

  9. 9F
    Fezfree▲80

    AI agents that work as a team and make decisions together

    29d ago · fez.chat · its alternatives →

  10. 10

    Your AI coding stack manager, all in one place

    28d ago · harnessmanager.devmesh.xyz · its alternatives →

  11. 11
    DSH Desktopfree▲176

    Official app for DeepSeek’s open-source agent harness

    21d ago · deepseek.com · its alternatives →

  12. 12

    Getting teams up-to-speed and keeping them there.

    2014 · seismic.com · its alternatives →

  13. 13

    Repo guardrails for reliable AI coding agents

    May 2026 · baskduf.github.io · its alternatives →

  14. 14
    Viberia▲146

    Hey HN, This is my take on the agent harness. Everything on an isometric map. Agents are grouped into "buildings" that run in a sequence or a loop; e.g., the CodeForge has an agent that writes a PRD, another one that implements, and a third that reviews. Everything is customizable, you build your own buildings/teams however you want. It's a Tauri app, really light (about 8x less energy than the closest competitor I benchmarked, so it actually runs from a coffee shop on battery). It's macOS only for now, but ping me if you are willing to test the Windows or Linux version. I've been…

    May 2026 · getviberia.com · its alternatives →

  15. 15

    A test plan your team and your AI can work through

    19d ago · qarunbook.com · its alternatives →

  16. 16
    Rinkata▲75

    One source of truth for your team and its AI agents

    26d ago · rinkata.dev · its alternatives →

  17. 17

    Some moves are being made...

    2016 · traffic.libsyn.com · its alternatives →

  18. 18

    A tiny OS for your always-on agents

    6d ago · bossconsole.ai · its alternatives →

  19. 19
    M9Rfree▲56

    Multiplayer space for your AI coding agents and teams

    Sep 2026 · app.m9r.workers.dev · its alternatives →

  20. 20

    A modular development board built for agents

    Sep 2026 · mosaico.ai · its alternatives →

  21. 21
    Slack▲93

    Platform for team communication

    2015 · slack.com · its alternatives →

  22. 22
    hobfree tier, from $50/mo▲91

    The professional workspace for your whole agent stack

    Sep 2026 · hob.dev · its alternatives →

  23. 23
    Clippo▲80

    Orchestrate AI agent teams on a visual canvas

    13d ago · apps.microsoft.com · its alternatives →

  24. 24

Also compare

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 →