@tpmjs/unsandbox

AI SDK tools for secure code execution in 42+ programming languages via unsandbox.com.

Installation

npm install @tpmjs/unsandbox
# or
pnpm add @tpmjs/unsandbox

Setup

Get an API key at unsandbox.com/api-keys and set it as an environment variable:

export UNSANDBOX_API_KEY=your-api-key

Usage

import { streamText } from 'ai';
import { anthropic } from '@ai-sdk/anthropic';
import { executeCode, listLanguages } from '@tpmjs/unsandbox';

const result = streamText({
  model: anthropic('claude-sonnet-4-20250514'),
  tools: {
    executeCode,
    listLanguages,
  },
  system: 'You can execute code in 42+ programming languages using a secure sandbox.',
  prompt: 'Write and run a Python script that calculates the first 10 Fibonacci numbers',
});

Tools

executeCode

Execute code synchronously in a secure sandbox.

import { executeCode } from '@tpmjs/unsandbox';

const result = await executeCode.execute({
  language: 'python',
  code: 'print("Hello, World!")',
});
// { stdout: "Hello, World!\n", stderr: "", exit_code: 0 }

Parameters:

| Name | Type | Required | Description | |------|------|----------|-------------| | language | string | Yes | Programming language (python, javascript, go, rust, etc.) | | code | string | Yes | Source code to execute | | input_files | array | No | Files to make available in /tmp/input/ | | network_mode | string | No | 'zerotrust' (default) or 'semitrusted' | | ttl | number | No | Timeout in seconds (1-900, default 60) | | return_artifact | boolean | No | Return compiled binary for compiled languages | | return_wasm_artifact | boolean | No | Compile to WebAssembly (C, C++, Rust, Zig, Go) |

executeCodeAsync

Execute code asynchronously, returning a job_id for tracking.

import { executeCodeAsync, getJob } from '@tpmjs/unsandbox';

const job = await executeCodeAsync.execute({
  language: 'rust',
  code: 'fn main() { println!("Hello from Rust!"); }',
});

// Check status later
const result = await getJob.execute({ job_id: job.job_id });

runCode

Execute code with automatic language detection from shebang.

import { runCode } from '@tpmjs/unsandbox';

const result = await runCode.execute({
  code: `#!/usr/bin/env python3
print("Auto-detected Python!")`,
});

runCodeAsync

Async version of runCode.

listJobs

List all active jobs for your API key.

import { listJobs } from '@tpmjs/unsandbox';

const jobs = await listJobs.execute({});

getJob

Get status and results of a specific async job.

import { getJob } from '@tpmjs/unsandbox';

const result = await getJob.execute({ job_id: 'abc123' });
// { status: 'completed', stdout: '...', stderr: '...' }

cancelJob

Cancel a running or pending async job.

import { cancelJob } from '@tpmjs/unsandbox';

await cancelJob.execute({ job_id: 'abc123' });

listLanguages

List all 42+ supported programming languages.

import { listLanguages } from '@tpmjs/unsandbox';

const languages = await listLanguages.execute({});

Supported Languages

42+ languages including:

• Interpreted: Python, JavaScript, TypeScript, Ruby, Perl, PHP, Lua, Bash, R, Elixir, Erlang, Tcl, Scheme, PowerShell, Clojure, Common Lisp, Crystal, Groovy, Deno, AWK, Raku
• Compiled: C, C++, Go, Rust, Java, Kotlin, COBOL, Fortran, D, Zig, Nim, V, Objective-C, Dart
• Functional: Julia, Haskell, OCaml, F#, C#, Prolog, Forth

Environment Variables

| Variable | Required | Description | |----------|----------|-------------| | UNSANDBOX_API_KEY | Yes | API key from unsandbox.com |

Related

• unsandbox.com - Secure code execution API
• TPMJS Registry - Browse all available AI SDK tools

License

MIT