---
name: x402.auteng.ai
description: x402.auteng.ai provides on-demand remote code execution in isolated sandboxes, supporting Python and other language stacks. It accepts code, runtime configuration, and optional files, then returns stdout, stderr, exit code, and execution time. It is a stateless, single-invocation compute service with a 300-second timeout ceiling.
host: x402.auteng.ai
---

# x402.auteng.ai

This host serves agents that need to run code server-side without maintaining a local runtime environment. It targets use cases such as scripted calculations, data transformations, and logic validation where the agent supplies code and receives structured output. It is a single-skill host with no persistent state, no streaming, and no interactive session support.

## When to use this host

Use this host when an agent needs to execute a discrete, self-contained code snippet server-side and retrieve its output — for example, running a Python calculation, transforming data, or validating logic without a local interpreter. Do not use it for processes that run longer than 300 seconds, for interactive or REPL-style sessions, or for workloads that require streaming output. It is also not suitable for persistent background jobs or stateful compute. For long-running or stateful workloads, consider a dedicated cloud compute or container execution service instead.

## Capabilities

### Remote Code Execution

Runs arbitrary code snippets in an isolated sandbox across supported language stacks and returns structured output including stdout, stderr, exit code, and wall-clock execution time.

- **`execute-remote-code`** — Executes arbitrary code in an isolated sandbox (Python and other stacks) on a remote server and returns stdout, stderr, exit code, and execution time.

## Skill reference

### `execute-remote-code`

**X402 On-Demand Compute** — Executes arbitrary code in an isolated sandbox (Python and other stacks) on a remote server and returns stdout, stderr, exit code, and execution time.

*Use when:* Use when an agent needs to run a code snippet server-side and retrieve the output, such as running Python scripts, performing calculations, or testing code logic without a local runtime.

*Not for:* Do not use for long-running persistent processes or workloads requiring more than 300 seconds; not suitable for interactive REPL sessions or streaming output.

**Inputs:**

- `code` (string, required) — Source code to execute in the sandbox.
- `stack` (string, required) — Runtime stack to use for execution (e.g. 'python').
- `size` (string, required) — Sandbox size tier controlling available compute resources (e.g. 'small').
- `timeout_seconds` (integer) — Maximum execution time in seconds before the sandbox is terminated. Must not exceed 300.
- `files` (object) — Map of filename to file content to make available inside the sandbox at execution time.

**Returns:** Returns stdout, stderr, exit_code (0 on success), execution_time_ms, output files map, stack, size, and a unique sandbox_id identifying the execution environment.

**Example:** `{"code": "import sys\nprint('Hello from AutEng x402!')\nprint('Python:', sys.version)", "stack": "python", "size": "small", "timeout_seconds": 100, "files": {}}`

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