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Dev tools · alternatives · 2026

24 alternatives to MGC Blackbox

Run AI agents without exposing your cognitive assets

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 2 we have checked on their own sites, 2 of them free or with a free tier.

  1. 1
    KarmaBox▲311

    Run your own Claude Code in your pocket.

    Apr 2026 · karmaboxai.com · its alternatives →

  2. 2
    OpenBox▲171

    See, verify, and govern every agent action.

    Apr 2026 · openbox.ai · its alternatives →

  3. 3

    Your browser AI agent for everything on your screen!

    2025 · blackbox.ai · its alternatives →

  4. 4
    Agent Sandboxfree tier, from $0.00025/mo▲97

    Your agent's personal remote computer and drive

    Feb 2026 · agentsandbox.co · its alternatives →

  5. 5
    Clears▲376

    Move beyond AI coding to Agentic Software Delivery

    Aug 2026 · clears.ai · its alternatives →

  6. 6
    Runtimefree tier, from $99/mo▲299

    Sandboxed coding agents for everyone on your team

    May 2026 · runtm.com · its alternatives →

  7. 7
    AGNT.Hub▲120

    Build always-on AI agents without managing servers

    Jun 2026 · platform.agnthub.ai · its alternatives →

  8. 8

    Tilde started from a simple observation: AI agents are only as useful as the environment they can work in. Giving an agent a prompt is easy. Giving it the right files, credentials, tools, context, and execution environment, safely and repeatably, is much harder. Over the past year, we learned a lot

    May 2026 · tilde.run · its alternatives →

  9. 9

    Run Claude, Codex & Cursor in parallel from one dashboard

    Mar 2026 · kingcode.shingoirie.com · its alternatives →

  10. 10
    SuperHQ▲95

    Hey HN, I built SuperHQ, an app that lets you run coding agents in local sandboxes (powered by Shuru). No custom UI wrapping the agents, they run as CLI/TUI like they were designed to. It just provides you the tools most of us (okay, maybe just me?) needed for running multiple coding agents in parallel without worrying about breaking your system or work environment. Each agent runs in its own microVM. You mount your projects in, writes go to a tmpfs overlay so your host is never touched, and you get a unified diff view to accept or discard changes. API keys never enter the sandbox, they…

    Apr 2026 · superhq.ai · its alternatives →

  11. 11
    Cortex▲70

    Run multiple claude-code agents from YAML config

    Jan 2026 · cortex-cli.vercel.app · its alternatives →

  12. 12RL

    Hello Hacker News! We're Yangqing, Xiang and JJ from lepton.ai. We are building a platform to run any AI models as easy as writing local code, and to get your favorite models in minutes. It's like container for AI, but without the hassle of actually building a docker image. We built and contributed to some of the world's most popular AI software - PyTorch 1.0, ONNX, Caffe, etcd, Kubernetes, etc. We also managed hundreds of thousands of computers in our previous jobs. And we found that the AI software stack is usually unnecessarily complex - and we want to change that. Imagine if you are a…

    2023 · lepton.ai · its alternatives →

  13. 13

    Hi HN, We are building Sanbox, a platform for running AI agents in isolated and resumable sandboxes. We use the OpenCode SDK as the harness, support reusable templates, and have a CLI that works with Codex, Claude Code, Cursor, CI, or your terminal. Each sandbox has MicroVM isolation, a persistent filesystem, and live trail of run events. Can also self-host if required for security/compliance. It's on the roadmap to add network ACL, secrets managements, LLM cost tracking & observability. We are also happy to build custom integrations or triggers for specific use cases. For example,…

    Jul 2026 · sanbox.cloud · its alternatives →

  14. 14

    Run Claude Code, Codex, AGY, and Grok Build side by side on your Mac. Every change gets reviewed by a second agent before you accept it.

    19d ago · offrun.dev · its alternatives →

  15. 15

    Hi HN, we built SuperHQ, an open source app that runs AI coding agents in isolated microVM sandboxes instead of directly on your machine. Each agent gets its own VM with a full Debian environment. You mount your projects in, writes go to a tmpfs overlay so your host is never touched, and you get a diff view to accept or discard changes. API keys never enter the sandbox. We also just launched remote.superhq.ai which acts as a remote control for SuperHQ, allowing you to access your workspaces and agents from anywhere.

    Apr 2026 · github.com · its alternatives →

  16. 16

    Zero-trust security gateway for AI agents

    Jun 2026 · solongate.com · its alternatives →

  17. 17

    AI code security review that runs entirely on your Mac

    Apr 2026 · its alternatives →

  18. 18

    Code smarter, faster — with the power of AI.

    2025 · play.google.com · its alternatives →

  19. 19

    Hi HN, AgentBox is an SDK for running coding agents (Claude Code, Codex, OpenCode) inside sandboxes (Docker, E2B, Modal, Daytona, Vercel). One API. Swap the agent or the sandbox and your code doesn't change. Think of it as what the AI SDK did for LLMs, but for agent + runtime. Most wrappers call agents in non interactive mode (claude --print, codex exec). AgentBox instead boots each agent's native server inside the sandbox (Codex app-server over JSON-RPC, OpenCode serve over HTTP/SSE, Claude Code's SDK WebSocket transport) and drives it from the host, behaving like an interactive…

    Apr 2026 · github.com · its alternatives →

  20. 20

    Run AI generated code in isolated sandboxes

    2025 · github.com · its alternatives →

  21. 21

    Managed zapier-like flows + UI

    Dec 2025 · trybluebox.com · its alternatives →

  22. 22

    Run Claude Agent SDK in sandboxed environments

    Jan 2026 · github.com · its alternatives →

  23. 23IA

    1. Headless mode Headless mode allows you to use the AI as a command-line utility for automation and scripting. In Claude Code you run it with the -p flag: claude -p, in codex - exec, opencode - run. 2. Ask human The traditional communication channel with the operator won't work in headless mode - we need to implement a dedicated tool. Here is an example of how this can be done https://github.com/sermakarevich/claude/tree/main/mcp/ask_hu... 3. Tasks queue Beads is a lightweight distributed graph issue tracker for AI agents, powered by Dolt. You can…

    Jun 2026 · its alternatives →

  24. 24

    Runs AI coding agents inside isolated Docker containers - marvincaspar/agent-sandbox

    May 2026 · github.com · 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 →