# pydantic/monty

> A minimal, secure Python interpreter written in Rust for running code generated by AI models without containers or VMs. It isolates filesystem, network and environment variables, and enforces memory, time and recursion limits.

- Magnitude: 1.5 out of 10 — Steady
- Stars: 8,267 total · +4 stars today, ≈ 7 by evening
- Star trust: star growth looks organic
- Category: AI agents · Language: Rust · License: MIT · Created: 2023-05-28 · Last push: 2026-09-24
- GitHub: https://github.com/pydantic/monty · Homepage: https://pydantic.dev/docs/monty/ · Page: https://gitnova.dev/en/r/pydantic/monty

## Useful for

- Run LLM-generated code in a sandbox without Docker or network access
- Enforce memory and time limits on untrusted Python scripts inside the VM
- Serialize a paused interpreter to bytes and resume it later

## Why it’s here

- 4 stars so far today, about 7 expected by the end of the day.
- GitHub Trending Rust today: #12, +7 stars.
- Recent forks include notable developers: @MarcoGorelli (692 followers).

## Star trust

Star growth looks organic.

Star-trust labels are heuristics based on the repository’s behavior, not a check of every stargazer.

## Numbers

- Forks: 419
- Issues and pull requests: 925
- Watchers: 40
- Average over the last week: 5 per day
- Usual pace: 6 per day
- Stars in the last hour (measured): 1
- Latest release: v1.0.0-beta.3 (2026-09-24)

## Stars per day, last 30 days (oldest → newest, today is partial)

2026-08-26 … 2026-09-24: 8, 3, 3, 3, 17, 6, 10, 5, 2, 4, 5, 8, 8, 4, 5, 9, 3, 5, 7, 6, 12, 6, 4, 1, 4, 6, 6, 6, 5, 4

## Spotted in now

- GitHub Trending Rust today: #12, +7 stars

## Similar by description

1. **e2b-dev/runtime** — 1.6 · Steady · AI agents · Go · +5 stars today, ≈ 9 by evening
   E2B's open-source runtime: the backend that runs isolated Firecracker microVM sandboxes where AI agents execute untrusted code. Includes the API, orchestrator, edge router, and envd inside each VM.
   Full card: https://gitnova.dev/en/r/e2b-dev/runtime.md
2. **superradcompany/microsandbox** — 1.6 · Steady · DevOps & infrastructure · Rust · +5 stars today, ≈ 10 by evening
   Microsandbox is a local-first runtime and library for running untrusted workloads in fast microVMs with hardware-level isolation. It suits AI agents, user code, plugins, CI jobs, and automation.
   Full card: https://gitnova.dev/en/r/superradcompany/microsandbox.md
3. **TencentCloud/CubeSandbox** — 1.9 · Cooling · AI agents · Go · +7 stars today, ≈ 15 by evening
   High-performance isolated sandbox service built on RustVMM and KVM for running AI agent code: under 60ms cold start, under 5MB memory overhead, E2B SDK compatible.
   Full card: https://gitnova.dev/en/r/TencentCloud/CubeSandbox.md

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Magnitude (0–10) measures how fast and how unusually interest in a repository is growing right now. It is not a quality score.
Days are UTC. “So far today” is a fact; “expected by the end of the day” is a forecast.
Summaries and use cases are written by an LLM (DeepSeek V4.1 Flash) from the README and may be inaccurate: verify specific claims (benchmarks, speed, hardware) in the repository itself.
Data as of 2026-09-24 13:15 UTC, updated every 30 minutes.