What are the best alternatives to OpenSandbox?

The top alternatives to OpenSandbox are LangChain, OpenAI Agents SDK, Claude Agent SDK, ranked by real usage data on Unfragile.

Are there free alternatives to OpenSandbox?

Yes, 17 free alternatives to OpenSandbox exist, including LangChain, OpenAI Agents SDK, Claude Agent SDK.

20 alternatives ranked by real usage data. OpenSandbox scores 41/100 — 20 tools score higher.

Secure, Fast, and Extensible Sandbox runtime for AI agents.

20 alternatives

17 free options

20 score higher

Framework for building LLM apps — chains, agents, RAG, memory. Python & JS/TS. 200+ integrations.