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AI · alternatives · 2026

24 alternatives to Endo Familiar, an O-cap based JavaScript agent sandbox

AI agents today run with full access to your credentials and systems. Endo's object-capability model grants only what's needed, nothing more.

Endo Familiar is a JavaScript agent sandbox built on O-cap, a security model. It allows developers to run JavaScript agents in an isolated environment with capability-based access controls. The sandbox restricts what… 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 1 we have checked on their own sites, 1 of them free or with a free tier.

  1. 1
    Osaurus▲534

    Open source agents that run 100% locally on your Mac

    Jul 2026 · osaurus.ai · its alternatives →

  2. 2
    SureThing.iofree tier, from $30/mo▲458

    Autonomous agent that communicates results like a human

    Apr 2026 · surething.io · its alternatives →

  3. 3

    Instant, hardware Isolated Sandboxes for AI agents

    Jul 2026 · createos.sh · its alternatives →

  4. 4
    Epho▲156

    Hey folks, Burak here. Epho is an API that allows running Claude Code, Codex or Opencode in a sandbox in the cloud. It abstracts away sandboxes, and allows running coding agents with a single HTTP request. Epho came out of our own struggles with building our own AI analyst: - Sandboxes give you bare machines; you need to configure them for agentic workloads. - Each agent behaves differently, and you need to build integrations with each of them. - Sandbox providers are not very reliable, which means you need to figure out a multi-provider strategy to avoid failures. - Logging, artifacts,…

    Aug 2026 · epho.io · its alternatives →

  5. 5

    Stop babysitting your AI agents

    Aug 2026 · chat.xpander.ai · its alternatives →

  6. 6OO

    Oso helps companies run agents in production with confidence using monitoring, access controls, and automated least privilege.

    2020 · osohq.com · its alternatives →

  7. 7
    OpenBox▲171

    See, verify, and govern every agent action.

    Apr 2026 · openbox.ai · its alternatives →

  8. 8

    Control robots in your browser — no setup needed

    Jun 2026 · olo-robotics.com · its alternatives →

  9. 9

    Just watched this video by ThePrimeagen (https://www.youtube.com/watch?v=efwDZw7l2Nk) about attackers jailbreaking Claude to run cyber attacks. The core issue: AI agents need isolation. We built ERA to fix this – local microVM-based sandboxing for AI-generated code with hardware-level security. Think containers, but safer. Such attacks wouldn't touch your host if running in ERA. GitHub: https://github.com/BinSquare/ERA Quick start: https://github.com/BinSquare/ERA/tree/main/era-agent/tutoria... Would love your…

    Nov 2025 · github.com · its alternatives →

  10. 10
    cto.new▲264

    Completely free AI code agent

    Nov 2025 · cto.new · its alternatives →

  11. 11

    Your browser AI agent for everything on your screen!

    2025 · blackbox.ai · its alternatives →

  12. 12

    Hello HN! The day has finally come to stop adding features and start sharing what I've been building the last 5-6 months. It's a bit of CrewAI, OpenDevon, LangFuse/Cloud all in one, providing devs who prefer TypeScript an integrated framework thats provides a lot out of the box to start experimenting and building agents with. It started after peeking at the LangChain docs a few times and never liking the example code. I began experimenting with automating a simple Jira request from the engineering team to add an index to one of our Google Spanner databases (for context I'm the…

    2024 · github.com · its alternatives →

  13. 13

    We’ve been working with automating coding agents in sandboxes as of late. It’s bewildering how poorly standardized and difficult to use each agent varies between each other. We open-sourced the Sandbox Agent SDK based on tools we built internally to solve 3 problems: 1. Universal agent API: interact with any coding agent using the same API 2. Running agents inside the sandbox: Agent Sandbox provides a Rust binary that serves the universal agent API over HTTP, instead of having to futz with undocumented interfaces 3. Universal session schema: persisting sessions is always problematic, since…

    Jan 2026 · github.com · its alternatives →

  14. 14

    Build production agents with harness and sandbox

    Apr 2026 · openai.com · its alternatives →

  15. 15

    Open-source homeserver OS with a built-in AI agent

    Jul 2026 · livinity.io · its alternatives →

  16. 16
    OneCLI▲143

    Give every employee a secured, sandboxed pro assistant agent

    Aug 2026 · onecli.sh · its alternatives →

  17. 17

    Hi! I’m Nathan: an ML Engineer at Mozilla.ai: I built agent-of-empires (aoe): a CLI application to help you manage all of your running Claude Code/Opencode sessions and know when they are waiting for you. - Written in rust and relies on tmux for security and reliability - Monitors state of cli sessions to tell you when an agent is running vs idle vs waiting for your input - Manage sessions by naming them, grouping them, configuring profiles for various settings I'm passionate about getting self-hosted open-weight LLMs to be valid options to compete with proprietary closed models. One…

    Jan 2026 · github.com · its alternatives →

  18. 18
    BU▲138

    Openclaw in the cloud

    Mar 2026 · cloud.browser-use.com · its alternatives →

  19. 19
    Latchkey▲122

    Hi HN, At Imbue, we’ve been following the rapid developments in the agent landscape and noticed that the way agents interact with third-party services on users’ behalf often leaves a lot to be desired. Integrations are ad hoc, complicated, context-heavy, and either unfriendly to non-technical users or tied to a lock-in of some sort. We‘re experimenting with a command-line tool, Latchkey, that could be used by local agents targeted at non-technical users while avoiding remote intermediaries. As far as we know, this is the only existing approach at the intersection of these two goals. Core…

    Mar 2026 · github.com · its alternatives →

  20. 20

    The TypeScript SDK for AI agents with self-improving memory

    Jun 2026 · eidentic.dev · its alternatives →

  21. 21

    Open-source browser automation for local AI agents

    May 2026 · github.com · its alternatives →

  22. 22

    I've been building computer-use tools for a while, and I quietly launched this about a month ago (122 Stars on GH). I figured it was worth sharing here. Over the last few months, a lot of computer-use agents have come out: Codex, Claude Code, CUA, and others. Most of them seem to work roughly like this: 1. Take a screenshot 2. Have the model predict pixel coordinates 3. Click x,y 4. Take another screenshot 5. Repeat That works, but it's slow, expensive in tokens, and fragile. If the UI shifts a few pixels, things break. And the model still doesn't know what any element actually is. But the…

    May 2026 · github.com · its alternatives →

  23. 23

    Spawn sandboxes at the speed of natural language. Pause, resume, and snapshot the full state of an agent’s workspace — filesystem, processes, memory — and pick up later without losing context.

    May 2026 · anyframe.dev · its alternatives →

  24. 24

    Hi HN! I’m Tony, co-founder of Inngest. I wanted to share AgentKit, our Typescript multi-agent library we’ve been cooking and testing with some early users in prod for months. Although OpenAI’s Agents SDK has been launched since, we think an Agent framework should offer more deterministic and flexible routing, work with multiple model providers, embrace MCP (for rich tooling), and support the unstoppable and growing community of TypeScript AI developers by enabling a smooth transition to production use cases. This is why we are building AgentKit, and we’re really excited about it for a few…

    2025 · 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 →