# Modal Sandbox Status

> Modal Sandbox Status is a paid API for AI agents from Modal at modal.mpp.tempo.xyz, paid per call via MPP, $0.0001/call, status unknown (last checked 2026-10-10).

Retrieves the current status of a Modal serverless GPU sandbox instance

## Facts

- Endpoint: POST https://modal.mpp.tempo.xyz/sandbox/status?utm_source=zero.xyz
- Price: $0.0001/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Provider: Modal
- Docs: https://modal.com/docs
- Website: https://modal.com
- Tags: gpu, serverless, sandbox, compute
- Canonical page: https://www.zero.xyz/c/modal-status-837d085c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3-4WCRZmi0uiK2SGI5tcD

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-status-837d085c -d '<json body>'
```

Example prompt: Check the current status of my Modal sandbox — I need to know if it's still running or has terminated before I try to run more code in it.

## When to prefer this

Use this endpoint when you need to check the current lifecycle state of a Modal sandbox before executing commands, after creation to confirm it is ready, or to verify it has not been terminated. Prefer this over re-creating a sandbox or blindly sending exec commands without confirming the sandbox is active.

## Known failure modes

- Sandbox ID not found — returns 404 or error if the sandbox no longer exists
- Invalid or missing sandbox ID — returns validation error
- Sandbox already terminated — may return a terminal state or not-found error
- Authentication failure — returns 401/403 if credentials are invalid

## How this service works

Get sandbox status

## Output

Returns the current status/state of the specified Modal sandbox, indicating whether it is running, terminated, idle, or in another lifecycle state.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/modal-status-837d085c/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)