# Modal Sandbox Create

> Modal Sandbox Create is a paid API for AI agents from Modal at modal.mpp.tempo.xyz, paid per call via MPP, $0.013842/call, status unknown (last checked 2026-10-13).

Creates a new isolated serverless sandbox environment for code execution on Modal's GPU-enabled infrastructure

## Facts

- Endpoint: POST https://modal.mpp.tempo.xyz/sandbox/create?utm_source=zero.xyz
- Price: $0.013842/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 1
- Provider: Modal
- Docs: https://modal.com/docs
- Website: https://modal.com
- Tags: gpu, serverless, sandbox, compute
- Canonical page: https://www.zero.xyz/c/modal-create-15348f6f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Kx_26NfOTmwiU5Wg_G9SB

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability modal-create-15348f6f -d '<json body>'
```

Example prompt: Spin up a new Modal GPU sandbox so I can run some Python ML code in an isolated environment — I need it ready to accept commands right away.

## When to prefer this

Use this endpoint when you need to create a fresh, isolated serverless sandbox for code execution on Modal, especially for GPU-intensive AI/ML workloads or when you need to safely execute untrusted code. Prefer this over alternatives when you need Modal-specific GPU sandboxing with pay-per-call pricing and strong isolation guarantees.

## Known failure modes

- Insufficient compute resources available — resource exhaustion error
- Invalid configuration parameters — 400 bad request
- Authentication failure — unauthorized access
- Quota exceeded for sandbox creation — rate limit error
- GPU type unavailable in region — resource unavailable error

## How this service works

Create a sandbox for code execution

## Output

Returns a sandbox ID and details about the newly provisioned isolated execution environment, including resource allocation and status, which can then be used with the Exec endpoint to run commands.

## Example request

```json
{
 "runtime": "python3.11",
 "gpu_type": "t4",
 "memory_mb": 4096,
 "notify_email": "zero-qa@agentmail.to",
 "timeout_seconds": 3600,
 "environment_name": "test-sandbox-ml"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/modal-create-15348f6f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from modal.mpp.tempo.xyz](https://www.zero.xyz/host/modal.mpp.tempo.xyz/llms.txt)