Best Alternatives to CubeSandbox

Schedule tasks for AI agents straight from Google Calendar, with agents that connect to tools like Gmail, Slack, Notion, GitHub, and more.

Open-source file-transfer and identity infrastructure for AI agents in one Go binary: each agent gets an address, folder, inbox, and API key in a single call, with 5 GB transfers, signed receipts, and an MCP bridge.

An open-source control plane for unattended LLM agents and workflows, enforcing cost caps, human approval gates, model-switching policies, and self-healing rollbacks around agents you build.

Cloudflare’s developer framework for building, deploying, and running agents close to web infrastructure on Workers and related services.

Managed browser infrastructure purpose-built for AI agents — spin up isolated Chrome sessions in seconds, with recording, captcha handling, and persistent state.

Free, local-first AI gateway that routes any coding tool to 237 LLM providers with auto-fallback, token compression, and MCP support.

Alibaba's open-source, in-page JavaScript framework that gives any web page its own natural-language GUI agent with one script.

Sanbox by Sanlabs runs AI agents in isolated, resumable MicroVM sandboxes with persistent filesystems, live run events, network ACLs, and self-hosting options.

A declarative, sandboxed, non-Turing-complete language and runtime that lets AI agents crystallize learned procedures into auditable, reusable skills.

Skyfire is a payment infrastructure platform for AI agents, providing identity, wallets, and transaction rails so autonomous agents can pay for APIs, services, and other agents on behalf of their users — positioned as the payments layer for the emerging agent economy.