Tencent Cloud open-sources Cube Sandbox, an AI-agent sandbox written in Rust under Apache 2.0

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Summary

Tencent Cloud’s Rust-based Cube Sandbox offers an E2B-compatible, isolated runtime for LLM-generated code.

Tencent Cloud has open-sourced Cube Sandbox, an AI-agent sandbox written in Rust and licensed under Apache 2.0. Agents that execute model-generated code need an isolated environment to prevent accidental file deletion or unauthorized host access. The de-facto API standard for such services is E2B, used by OpenAI Agents SDK, Manus, Perplexity, and Hugging Face. Cube is fully compatible with E2B, so agents already integrated with E2B can switch seamlessly.
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Cached at: 04/21/26, 07:25 PM

Tencent Cloud open-sourced Cube Sandbox, an AI Agent sandbox written in Rust under the Apache 2.0 license.
Running model-generated code inside an Agent demands an isolated environment to prevent accidental file deletion or unauthorized host access. The de-facto API standard for this kind of service is E2B, already adopted by OpenAI Agents SDK, Manus, Perplexity, and Hugging Face.
Cube is fully compatible with E2B, so any Agent previously connected to E2B can switch to Cube without changing a line of code.

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