AI · alternatives · 2026

23 alternatives to Mantle

Open-source service builder for humans and AI agents

Below are 23 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 1 we have checked on their own sites, 1 of them free or with a free tier.

1. 1
   Muse▲229

   Your personal AI agent that gets things done

   24d ago · auth.muse.ai · its alternatives →

2. 2
   Communicate▲97

   AI support agents grounded in your knowledge, with handoff

   2d ago · communicate.so · its alternatives →

3. 3
   Koreshield▲91

   Security and evidence for AI support agents

   10d ago · koreshield.ai · its alternatives →

4. 4
   IntellAgents.iofree tier, from $20/mo▲85

   One AI agent for every call, chat, and DM

   9d ago · intellagents.io · its alternatives →

5. 5
   Harmony▲145

   AI agents that resolve IT/HR tickets inside Slack and Teams

   13d ago · harmony.io · its alternatives →

6. 6
   Styx▲65

   An agentic development environment (ADE) for Mac

   7d ago · heystyx.com · its alternatives →

7. 7
   PixelCrew▲142

   Production-ready design from a crew of AI agents

   14d ago · pixelcrew.ai · its alternatives →

8. 8
   Userlens▲116

   AI agent to improve product adoption

   Apr 2026 · userlens.io · its alternatives →

9. 9
   M9R▲56

   Multiplayer space for your AI coding agents and teams

   15d ago · app.m9r.workers.dev · its alternatives →

10. 10
    Campfire▲84

    The shared workspace for humans and coding agents

    3d ago · boringinfra.company · its alternatives →

11. 11
    OpenScience▲75

    The open-source AI workbench for scientific research

    6d ago · openscience.sh · its alternatives →

12. 12
    Proto-Mind▲60

    A floating AI workspace for your Mac

    15d ago · virencore.com · its alternatives →

13. 13
    vgpu▲39

    The WebGPU library, designed for agents

    11d ago · vgpu.sh · its alternatives →

14. 14
    ContextsBase▲75

    Context Infrastructure for Coding Agents

    15d ago · contextsbase.com · its alternatives →

15. 15BA
    Brig – A MicroVM sandbox for AI coding agents on Mac and Linux▲9

    10d ago · its alternatives →

16. 16
    Fleet – a local-first console for managing Dockerized Hermes AI Agents▲8

    Jun 2026 · github.com · its alternatives →

17. 17
    Open-Source outcome- / usage-based billing engine for AI Agents▲6

    2025 · github.com · its alternatives →

18. 18VC
    Verloop – Customer Engagement Automation with AI (SUS'17)▲5

    2017 · verloop.io · its alternatives →

19. 19SC
    Serverless code execution, but for AI agents▲7

    2024 · sandboxed.ai · its alternatives →

20. 20CA
    Context-Aware AI Assistant for macOS [Open Source]▲6

    Jan 2026 · thequickfox.ai · its alternatives →

21. 21
    Wolfpack – Distributed task-based agents/bots▲5

    2016 · github.com · its alternatives →

22. 22
    SentinelGate – Access control for AI agents (open-source MCP proxy)▲6

    Mar 2026 · github.com · its alternatives →

23. 23AI
    Artificial Intelligence Tools as a Service▲5

    Discover SummarizeBot

    2018 · summarizebot.com · its alternatives →

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 →