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    LLM Sandbox

    mcpkey · package
    io.github.vndee/llm-sandbox · v0.3.43
    deploy just this

    Securely run LLM-generated code in isolated containers across 7 languages and 3 container backends.

    run it

    on your own machines, one way per deploy method
    generated from the record, not tested yet
    #!/usr/bin/env bash
# llm-sandbox (io.github.vndee/llm-sandbox), recipe baremetal (generated).
# Generated by Hub for toolset "my-agent"; started by mcp-my-agent-llm-sandbox.service.
set -euo pipefail
export HOST=127.0.0.1 PORT=8101
exec uvx mcp-proxy --host 127.0.0.1 --port 8101 --pass-environment -- uvx llm-sandbox==0.3.43

[Unit]
Description=MCP server llm-sandbox (toolset my-agent), generated by Hub
After=network-online.target
Wants=network-online.target

[Service]
Type=simple
User=mcp
Group=mcp
EnvironmentFile=/etc/mcp/my-agent.env
Environment=HOME=/var/lib/mcp/llm-sandbox
WorkingDirectory=/var/lib/mcp/llm-sandbox
ExecStart=/opt/mcp/my-agent/bin/llm-sandbox.sh
Restart=on-failure
RestartSec=5
NoNewPrivileges=true
ProtectSystem=strict
ProtectHome=true
PrivateTmp=true
ReadWritePaths=/var/lib/mcp/llm-sandbox

[Install]
WantedBy=multi-user.target
    generated from the record, not tested yet
    docker run --rm -p 127.0.0.1:8101:8000 -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 ghcr.io/astral-sh/uv:python3.12-bookworm-slim sh -c 'uvx mcp-proxy --host 0.0.0.0 --port 8000 --pass-environment -- uvx llm-sandbox==0.3.43'
    generated from the record, not tested yet
    # Generated by Hub for toolset "my-agent" (2026-10-18T01:20:41+00:00).
# Each package server runs behind a stdio->HTTP bridge and listens on localhost only.
#   cp .env.example .env    # fill the ${VAR}s
#   docker compose up -d && bash smoke.sh
# Remote servers are not here: clients reach them directly (see clients/).
name: mcp-my-agent
services:
  llm-sandbox:
    image: ghcr.io/astral-sh/uv:python3.12-bookworm-slim
    command:
    - sh
    - -c
    - uvx mcp-proxy --host 0.0.0.0 --port 8000 --pass-environment -- uvx llm-sandbox==0.3.43
    ports:
    - 127.0.0.1:8101:8000
    volumes:
    - uv-cache:/root/.cache/uv
    healthcheck:
      test:
      - CMD
      - python3
      - -c
      - import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/status')
      interval: 30s
      timeout: 5s
      retries: 5
      start_period: 2m
    restart: unless-stopped
    environment:
      BACKEND: ${BACKEND}
      DOCKER_HOST: ${DOCKER_HOST}
      KUBECONFIG: ${KUBECONFIG}
      NAMESPACE: ${NAMESPACE}
      COMMIT_CONTAINER: ${COMMIT_CONTAINER}
      KEEP_TEMPLATE: ${KEEP_TEMPLATE}
      SANDBOX_NETWORK_MODE: ${SANDBOX_NETWORK_MODE}
      SANDBOX_READ_ONLY: ${SANDBOX_READ_ONLY}
      SANDBOX_CAP_DROP: ${SANDBOX_CAP_DROP}
      SANDBOX_SECURITY_OPT: ${SANDBOX_SECURITY_OPT}
      SANDBOX_MEMORY: ${SANDBOX_MEMORY}
      SANDBOX_CPUS: ${SANDBOX_CPUS}
volumes:
  npm-cache: {}
  uv-cache: {}
    generated from the record, not tested yet
    # Generated by Hub for toolset "my-agent" (2026-10-18T01:20:41+00:00).
#   kubectl create namespace mcp
#   kubectl -n mcp create secret generic mcp-credentials --from-env-file=.env
#   kubectl apply -f kubernetes.yaml
# Services are cluster-internal: <name>.mcp.svc.cluster.local:8000/mcp. Put an ingress
# with auth in front before exposing any of them.
apiVersion: v1
kind: Namespace
metadata:
  name: mcp
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: llm-sandbox
  namespace: mcp
  labels: &id001
    app: llm-sandbox
spec:
  replicas: 1
  selector:
    matchLabels: *id001
  template:
    metadata:
      labels: *id001
    spec:
      containers:
      - name: llm-sandbox
        image: ghcr.io/astral-sh/uv:python3.12-bookworm-slim
        ports:
        - containerPort: 8000
          name: http
        env:
        - name: BACKEND
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: BACKEND
        - name: DOCKER_HOST
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: DOCKER_HOST
        - name: KUBECONFIG
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: KUBECONFIG
        - name: NAMESPACE
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: NAMESPACE
        - name: COMMIT_CONTAINER
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: COMMIT_CONTAINER
        - name: KEEP_TEMPLATE
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: KEEP_TEMPLATE
        - name: SANDBOX_NETWORK_MODE
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SANDBOX_NETWORK_MODE
        - name: SANDBOX_READ_ONLY
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SANDBOX_READ_ONLY
        - name: SANDBOX_CAP_DROP
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SANDBOX_CAP_DROP
        - name: SANDBOX_SECURITY_OPT
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SANDBOX_SECURITY_OPT
        - name: SANDBOX_MEMORY
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SANDBOX_MEMORY
        - name: SANDBOX_CPUS
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SANDBOX_CPUS
        command:
        - sh
        - -c
        - uvx mcp-proxy --host 0.0.0.0 --port 8000 --pass-environment -- uvx llm-sandbox==0.3.43
        readinessProbe:
          httpGet:
            path: /status
            port: http
          initialDelaySeconds: 10
---
apiVersion: v1
kind: Service
metadata:
  name: llm-sandbox
  namespace: mcp
spec:
  selector:
    app: llm-sandbox
  ports:
  - port: 8000
    targetPort: http
    name: http
    generated from the record, not tested yet
    # Generated by Hub for toolset "my-agent" (2026-10-18T01:20:41+00:00).
# Credentials come from the Secret 'mcp-credentials' (kubectl create secret generic ... --from-env-file=.env).
# Each server under `servers` is one Deployment + Service; the keys after it configure
# upstream charts a worker verified.
servers:
  llm-sandbox:
    enabled: true
    replicas: 1
    port: 8000
    path: /mcp
    container:
      name: llm-sandbox
      image: ghcr.io/astral-sh/uv:python3.12-bookworm-slim
      ports:
      - containerPort: 8000
        name: http
      env:
      - name: BACKEND
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: BACKEND
      - name: DOCKER_HOST
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: DOCKER_HOST
      - name: KUBECONFIG
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: KUBECONFIG
      - name: NAMESPACE
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: NAMESPACE
      - name: COMMIT_CONTAINER
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: COMMIT_CONTAINER
      - name: KEEP_TEMPLATE
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: KEEP_TEMPLATE
      - name: SANDBOX_NETWORK_MODE
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SANDBOX_NETWORK_MODE
      - name: SANDBOX_READ_ONLY
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SANDBOX_READ_ONLY
      - name: SANDBOX_CAP_DROP
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SANDBOX_CAP_DROP
      - name: SANDBOX_SECURITY_OPT
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SANDBOX_SECURITY_OPT
      - name: SANDBOX_MEMORY
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SANDBOX_MEMORY
      - name: SANDBOX_CPUS
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SANDBOX_CPUS
      command:
      - sh
      - -c
      - uvx mcp-proxy --host 0.0.0.0 --port 8000 --pass-environment -- uvx llm-sandbox==0.3.43
      readinessProbe:
        httpGet:
          path: /status
          port: http
        initialDelaySeconds: 10

# helm install my-agent helm/my-agent -n mcp

    in the cloud

    one click: the provider's deploy form opens filled in, in your own account
    koyeb
    deploy to koyeb

    The form opens with CHANGE_ME for each value you supply: 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 them in before you deploy.

    Clients connect to the service's https://…koyeb.app address plus /mcp.

    azure
    deploy to azuretemplate

    A Container Apps environment with one app per server, each with HTTPS ingress and one replica. The portal asks for each value you supply as a secure parameter; the deployment's outputs list the endpoints.

    connect to it

    copy what your client needs
    uvx llm-sandbox==0.3.43
# 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
    {
  "mcpServers": {
    "llm-sandbox": {
      "command": "uvx",
      "args": [
        "llm-sandbox==0.3.43"
      ],
      "env": {
        "BACKEND": "${BACKEND}",
        "DOCKER_HOST": "${DOCKER_HOST}",
        "KUBECONFIG": "${KUBECONFIG}",
        "NAMESPACE": "${NAMESPACE}",
        "COMMIT_CONTAINER": "${COMMIT_CONTAINER}",
        "KEEP_TEMPLATE": "${KEEP_TEMPLATE}",
        "SANDBOX_NETWORK_MODE": "${SANDBOX_NETWORK_MODE}",
        "SANDBOX_READ_ONLY": "${SANDBOX_READ_ONLY}",
        "SANDBOX_CAP_DROP": "${SANDBOX_CAP_DROP}",
        "SANDBOX_SECURITY_OPT": "${SANDBOX_SECURITY_OPT}",
        "SANDBOX_MEMORY": "${SANDBOX_MEMORY}",
        "SANDBOX_CPUS": "${SANDBOX_CPUS}"
      }
    }
  }
}
    #!/usr/bin/env bash
# Registers every server with Claude Code (run once; `claude mcp list` to check).
set -euo pipefail
set -a; [ -f .env ] && source .env; set +a
claude mcp add llm-sandbox -e "BACKEND=${BACKEND}" -e "DOCKER_HOST=${DOCKER_HOST}" -e "KUBECONFIG=${KUBECONFIG}" -e "NAMESPACE=${NAMESPACE}" -e "COMMIT_CONTAINER=${COMMIT_CONTAINER}" -e "KEEP_TEMPLATE=${KEEP_TEMPLATE}" -e "SANDBOX_NETWORK_MODE=${SANDBOX_NETWORK_MODE}" -e "SANDBOX_READ_ONLY=${SANDBOX_READ_ONLY}" -e "SANDBOX_CAP_DROP=${SANDBOX_CAP_DROP}" -e "SANDBOX_SECURITY_OPT=${SANDBOX_SECURITY_OPT}" -e "SANDBOX_MEMORY=${SANDBOX_MEMORY}" -e "SANDBOX_CPUS=${SANDBOX_CPUS}" -- uvx llm-sandbox==0.3.43

    {
  "mcpServers": {
    "llm-sandbox": {
      "command": "uvx",
      "args": [
        "llm-sandbox==0.3.43"
      ],
      "env": {
        "BACKEND": "${BACKEND}",
        "DOCKER_HOST": "${DOCKER_HOST}",
        "KUBECONFIG": "${KUBECONFIG}",
        "NAMESPACE": "${NAMESPACE}",
        "COMMIT_CONTAINER": "${COMMIT_CONTAINER}",
        "KEEP_TEMPLATE": "${KEEP_TEMPLATE}",
        "SANDBOX_NETWORK_MODE": "${SANDBOX_NETWORK_MODE}",
        "SANDBOX_READ_ONLY": "${SANDBOX_READ_ONLY}",
        "SANDBOX_CAP_DROP": "${SANDBOX_CAP_DROP}",
        "SANDBOX_SECURITY_OPT": "${SANDBOX_SECURITY_OPT}",
        "SANDBOX_MEMORY": "${SANDBOX_MEMORY}",
        "SANDBOX_CPUS": "${SANDBOX_CPUS}"
      }
    }
  }
}
    {
  "servers": {
    "llm-sandbox": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "llm-sandbox==0.3.43"
      ],
      "env": {
        "BACKEND": "${BACKEND}",
        "DOCKER_HOST": "${DOCKER_HOST}",
        "KUBECONFIG": "${KUBECONFIG}",
        "NAMESPACE": "${NAMESPACE}",
        "COMMIT_CONTAINER": "${COMMIT_CONTAINER}",
        "KEEP_TEMPLATE": "${KEEP_TEMPLATE}",
        "SANDBOX_NETWORK_MODE": "${SANDBOX_NETWORK_MODE}",
        "SANDBOX_READ_ONLY": "${SANDBOX_READ_ONLY}",
        "SANDBOX_CAP_DROP": "${SANDBOX_CAP_DROP}",
        "SANDBOX_SECURITY_OPT": "${SANDBOX_SECURITY_OPT}",
        "SANDBOX_MEMORY": "${SANDBOX_MEMORY}",
        "SANDBOX_CPUS": "${SANDBOX_CPUS}"
      }
    }
  }
}
    name: my-agent
target: local
servers:
- hub: io.github.vndee/llm-sandbox
    • not probed yet: tools unpinned, ingest lists them

    tools

    Not probed yetThe tools appear once the hub or its worker has listed this entry. Running it still works: your client lists them on first start.