Stop Worrying About AI-Generated Code Execution

Running AI-generated Python code in production used to mean choosing between security and convenience. You either executed code directly (dangerous) or spun up containers constantly (slow and expensive). ForeverVM changes this completely.

The AI Code Execution Problem You Know Too Well

You're building with AI code generation, but every execution is a security nightmare. Traditional approaches suck:

• Direct execution: Fast but one malicious prompt away from disaster
• Fresh containers: Secure but slow, expensive, and stateless
• Jupyter kernels: Better but still vulnerable and resource-heavy
• Cloud functions: Secure but cold starts kill interactivity

You need something that's secure like containers but fast and stateful like local execution.

Persistent Sandboxes That Actually Work

ForeverVM gives you long-lived, stateful Python environments that survive between sessions. When a sandbox goes idle, it automatically swaps to disk. When you need it again, it's back instantly with all your variables, imports, and state intact.

import { ForeverVM } from '@forevervm/sdk'

const fvm = new ForeverVM({ token: process.env.FOREVERVM_TOKEN })
const repl = fvm.repl()

// Execute AI-generated code safely
const result = await repl.exec(`
import pandas as pd
df = pd.read_csv('data.csv')
df.describe()
`).result

// Later session - df is still there
const analysis = await repl.exec('df.groupby("category").mean()').result

Your AI can build complex analysis pipelines across multiple interactions without losing context or recomputing expensive operations.

Built for the AI Development Reality

Multi-turn code conversations: AI assistants can now maintain computational context across an entire session. No more re-importing libraries or recalculating intermediate results every message.

Safe AI agent execution: Deploy agents that write and run their own Python code without worrying about system compromise. Each agent gets its own persistent sandbox.

Interactive data analysis: Build AI-powered data tools where users can ask follow-up questions without starting from scratch each time.

Code experimentation platforms: Create environments where AI can iterate on solutions, building on previous attempts rather than starting over.

Beyond Basic Sandboxing

ForeverVM handles the production complexities you don't want to think about:

• Automatic resource management: Memory limits, CPU controls, and disk quotas prevent runaway processes
• Smart state persistence: Only modified data gets saved, keeping snapshots lightweight
• Tag-based organization: Group sandboxes by user, project, or environment for easy management
• Transparent reconnection: CLI sessions reconnect to existing machines seamlessly

# Start working on a machine
npx forevervm repl my-analysis

# Close laptop, come back later
npx forevervm repl my-analysis  # Everything's still there

Drop-in Integration

The TypeScript SDK makes integration straightforward. You're not learning a new paradigm - just secure execution:

// Create tagged environments for different users
const userRepl = await fvm.createMachine({
  tags: { user: 'user123', project: 'data-analysis' },
  memory_mb: 1024
})

// Execute code with streaming output
const execution = userRepl.exec('for i in range(1000000): print(f"Processing {i}")')

for await (const output of execution.output) {
  console.log(output.data)  // Stream results in real-time
}

Production-Ready Security

Built on Rust with proper isolation primitives. Each sandbox runs in its own namespace with cgroup limits. No shared filesystem access, no network unless you enable it, no way for malicious code to escape.

The automatic disk swapping means you can run hundreds of user sessions cost-effectively - they only consume resources when actively computing.

ForeverVM solves the fundamental tension in AI code execution: you get Docker-level security with REPL-level interactivity. Your AI applications can finally execute generated code the way they should - safely, persistently, and without friction.

Time to stop compromising between security and user experience. Get started at forevervm.com.