AgentIndex icon
AgentIndex
sandbox logo
sandbox
★ 85
vs
tunnel-client logo
tunnel-client
★ 589

sandbox vs tunnel-client

sandbox: Sandbox provides high-performance MicroVM sandboxes for AI agents, leveraging the cocoon stack for rapid boot times and warm pools. It offers secure, isolated execution environments with SDKs for Go and Python, and integrations with agent frameworks like OpenAI Agents and LangChain.; tunnel-client: `tunnel-client` is a customer-run agent that securely connects private or localhost Model Context Protocol (MCP) servers to OpenAI products like ChatGPT and Codex through an OpenAI-hosted tunnel. It enables secure access for AI models without exposing the MCP server to the public internet, simplifying deployments in restricted network environments.

01

TL;DR

sandbox logo
sandboxLLM Infra · ★ 85

Providing isolated and secure execution environments for AI agents to run untrusted code or perform tasks.

Read sandbox full review →
tunnel-client logo
tunnel-clientLLM Infra · ★ 589

Connecting a private or localhost MCP server to OpenAI-hosted products like ChatGPT when public internet access is restricted.

Read tunnel-client full review →
02

Side-by-Side Comparison

Field
sandbox logosandbox
tunnel-client logotunnel-client
Category
LLM Infra
LLM Infra
Stars
★ 85
★ 589
License
AGPL-3.0
Apache-2.0
Install Command
make sandboxd
make admin-ui && go build -o bin/tunnel-client ./cmd/client
Updated
1d ago
1d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
MicroVM, Sandboxing, AI Agents
Secure Tunnel, API Proxy, LLM Connectivity
03

Features

sandbox logosandbox
01High-performance MicroVM sandboxes for AI agents with sub-millisecond warm claims and fast boot.
02Dual network lanes supporting Firecracker for vsock-only and Cloud Hypervisor for egress networking.
03In-guest daemon (silkd) for executing commands, file operations, persistent shell sessions, and LSP proxy.
04Per-node control plane (sandboxd) with warm pools, claim/release HTTP API, and HTTP-upgrade byte relay.
05Comprehensive SDKs for Go and Python, plus direct integrations with OpenAI Agents SDK and LangChain.
tunnel-client logotunnel-client
01Securely connects private or localhost MCP servers to OpenAI products like ChatGPT and Codex.
02Operates as a daemon with health checks, metrics, and an administrative UI for operational visibility.
03Supports flexible MCP server integration via Streamable HTTP, stdio, or in-memory transports.
04Offers an embeddable Go SDK for direct integration into Go applications.
04

Use Cases

sandbox logosandbox
↳Providing isolated and secure execution environments for AI agents to run untrusted code or perform tasks.
↳Integrating with popular agent frameworks like LangChain or OpenAI Agents for enhanced code execution capabilities.
↳Developing and testing AI agents in a controlled, high-performance sandbox environment.
↳Orchestrating AI agent workloads with warm pools for rapid and efficient task execution.
↳Enabling secure and private execution of AI models or sensitive operations within a microVM.
tunnel-client logotunnel-client
↳Connecting a private or localhost MCP server to OpenAI-hosted products like ChatGPT when public internet access is restricted.
↳Deploying an operator-visible daemon for an MCP server before connecting it to external APIs, ensuring readiness and observability.
↳Integrating directly into a Go application using the Go SDK to bridge an in-memory MCP server with OpenAI tunnels.
05

Best For

sandbox logosandbox
—
tunnel-client logotunnel-client
Hidden Gem
FAQ

FAQ

What is the difference between sandbox and tunnel-client?
Both sandbox and tunnel-client are in the LLM Infra category. sandbox has 85 stars, while tunnel-client has 589 stars.
Which is better, sandbox or tunnel-client?
The best choice depends on your use case. Choose sandbox if Providing isolated and secure execution environments for AI agents to run untrusted code or perform tasks., and tunnel-client if Connecting a private or localhost MCP server to OpenAI-hosted products like ChatGPT when public internet access is restricted..
Is sandbox free or open source?
Yes, sandbox is open source on GitHub (AGPL-3.0).
Is tunnel-client free or open source?
Yes, tunnel-client is open source on GitHub (Apache-2.0).
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Related

Alternatives to sandbox →Alternatives to tunnel-client →sandbox details →tunnel-client details →