LLM Sandbox
local MCP serverInstallation
Terminal
claude mcp add llm-sandbox -e BACKEND=... -e DOCKER_HOST=... -e KUBECONFIG=... -e NAMESPACE=... -e COMMIT_CONTAINER=... -e KEEP_TEMPLATE=... -e SANDBOX_NETWORK_MODE=... -e SANDBOX_READ_ONLY=... -e SANDBOX_CAP_DROP=... -e SANDBOX_SECURITY_OPT=... -e SANDBOX_MEMORY=... -e SANDBOX_CPUS=... -- uvx llm-sandbox
Run in your project folder. Add --scope user to use it everywhere.
Claude Desktop, Cursor & other clients
Add to claude_desktop_config.json or .cursor/mcp.json.
{
"mcpServers": {
"llm-sandbox": {
"command": "uvx",
"args": [
"llm-sandbox"
],
"env": {
"BACKEND": "...",
"DOCKER_HOST": "...",
"KUBECONFIG": "...",
"NAMESPACE": "...",
"COMMIT_CONTAINER": "...",
"KEEP_TEMPLATE": "...",
"SANDBOX_NETWORK_MODE": "...",
"SANDBOX_READ_ONLY": "...",
"SANDBOX_CAP_DROP": "...",
"SANDBOX_SECURITY_OPT": "...",
"SANDBOX_MEMORY": "...",
"SANDBOX_CPUS": "..."
}
}
}
}Fill in the environment variables with your own credentials.
Summary
Securely run LLM-generated code in isolated containers across 7 languages and 3 container backends.
Questions
LLM Sandbox is a local MCP server distributed as the pypi package llm-sandbox.
Run: claude mcp add llm-sandbox -e BACKEND=... -e DOCKER_HOST=... -e KUBECONFIG=... -e NAMESPACE=... -e COMMIT_CONTAINER=... -e KEEP_TEMPLATE=... -e SANDBOX_NETWORK_MODE=... -e SANDBOX_READ_ONLY=... -e SANDBOX_CAP_DROP=... -e SANDBOX_SECURITY_OPT=... -e SANDBOX_MEMORY=... -e SANDBOX_CPUS=... -- uvx llm-sandbox
Run: codex mcp add llm-sandbox --env BACKEND=... --env DOCKER_HOST=... --env KUBECONFIG=... --env NAMESPACE=... --env COMMIT_CONTAINER=... --env KEEP_TEMPLATE=... --env SANDBOX_NETWORK_MODE=... --env SANDBOX_READ_ONLY=... --env SANDBOX_CAP_DROP=... --env SANDBOX_SECURITY_OPT=... --env SANDBOX_MEMORY=... --env SANDBOX_CPUS=... -- uvx llm-sandbox
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