Run code, agents, and exams in isolated machines.

Sphere Engine Sandboxes for anything your users or models execute. Compilers, Problems, and Containers for teaching, hiring, and grading.

Isolated sandbox machine returning stdout and files to your application

Try for free Read the docs

Create an account and run from your SDK.

Choose where to start

Sandboxes

A machine per task. Files, processes, network, and a result you can take back.

Python and TypeScript SDK.
One-shot runs and longer sessions.

Explore Sandboxes

Assessment

Grade programming skills at the scale you already run.

Compilers, Problems, and Containers — APIs and widgets inside your product.

Compilers Problems Containers

Enterprise

Dedicated capacity, on-premise, and a team that has run this since 2008.

SLA, support, and infrastructure sized to your volume.

Talk about enterprise

From your code to an isolated machine

Each run happens in a separate machine — outside your app process.
You send code and files through the API and take stdout, stderr, and artifacts back.
Need more than one call? Keep a session alive, exec again, then stop.

See Sandboxes Read the docs

from sphere_engine_sandboxes import Client

client = Client(token="YOUR_API_TOKEN")

result = client.run.execute(
    image="ubuntu-26.04-med",
    command=["python3", "hello.py"],
    copies=[{"host": "./hello.py"}],
)
print(result.stdout)
print(result.exit_code)

import { Client } from "@sphere-engine/sandboxes-sdk";

const client = new Client({ token: "YOUR_API_TOKEN" });

const result = await client.run.execute({
  image: "ubuntu-26.04-med",
  command: ["python3", "hello.py"],
  copies: [{ host: "./hello.py" }],
});
console.log(result.stdout, result.exit_code);

Example output. Not a live run.

stdouthello

exit_code0