Backed by a leading startup accelerator · Waitlist open

Real computers for the agents you’re building

MANSSINO hands every agent its own persistent virtual machine — a full kernel, a real filesystem, and root in its pocket — that wakes in under 250 milliseconds and remembers everything between sessions. No image to pull. No runtime to spin up. No dependencies to reinstall. No bill while it sleeps.

Join the waitlist See how it works

machine m‑7f3a ready · booted in 0.24s us‑west‑1

Root access to every runtime & package manager you already use

// no cold starts, ever

Still booting?!
We’re already
up.

The usual ephemeral sandbox burns whole seconds pulling an image, starting a runtime, and reinstalling your world before it runs a single line. MANSSINO is awake in 250 milliseconds — every cold start, every resume, every time your agent reaches for compute.

The whole machine

Not a sandbox.A real machine.

Not a function that vanishes the moment it returns. Not a container sharing a kernel with strangers. A persistent virtual machine — yours, isolated, always recoverable — that behaves exactly like the Linux box on your desk, only faster to wake and impossible to lose.

● BOOT · 0.24S

manssino — zsh

$ manssino create --vcpu 4 --memory 8 --disk 50

# allocating vm · attaching disk · resuming kernel

✓ machine m‑7f3a is live in 0.24s

$ manssino ssh m‑7f3a

root@m‑7f3a:~#

250ms

to a full Linux machine — versus the multi‑second pull‑image, start‑runtime, install‑deps ritual every other sandbox makes you wait through.

Live before you finish the thought

Cold starts are a tax, and your agents pay it on every single call. MANSSINO resumes a real machine in under a quarter‑second, so the gap between “I need compute” and “I have compute” effectively disappears.

STATE · PERSISTENT

Running

~/ home · pip · env · pid 4821

z z z sleep → resume ⚡

Resumed

~/ home · pip · env · pid 4821

Sleep it. Resume it. Nothing forgets.

Every machine preserves its full filesystem and memory across sessions. Your home directory, installed packages, environment variables, and even long‑running background processes are exactly where you left them when the machine wakes — no rebuild, no re‑clone, no “setup” step.

ISOLATION · VM

Hardware—

Dedicated kernel○

Your machine · root⬢

Isolated down to the kernel

Each machine is walled off at the hardware and kernel level — separate memory, separate filesystem, its own kernel — not a container or a JavaScript isolate sharing the host. That is a far harder boundary, which is exactly why it is safe to run untrusted code with root still in your hands.

● ACCESS · ROOT

root@m-7f3a — install anything

# apt install ffmpeg postgresql

# pip install torch transformers

# npm i -g playwright tsx

# cargo add tokio serde

# brew install ripgrep fd

# go install ./... && gem install bundler

✓ python · node · rust · go · java · ruby — all resident

Root. Obviously. Then install the whole world.

You get genuine root on every instance and reach for the package managers you already trust — apt, pip, npm, cargo, brew — across Python, Node.js, Rust, Go, Java, and Ruby. Bring your stack as‑is; it installs once and stays installed.

COMPUTE · GPU + CUDA

GPU 084%

VRAM67%

CUDA12.x

DOCKER BIG DISK nvidia‑smi

GPUs, CUDA, Docker, big disks

Heavy work is first‑class here. Drive GPU and CUDA workloads, run Docker inside your machine, and request large disk allocations — everything you need for model training, dataset crunching, and long‑running automation that would choke a thin sandbox.

BILLING · ACTIVE ONLY

billed — active compute asleep — $0

Pay for compute, not for waiting

You are billed only for active compute time. The moment a machine sleeps the meter stops — no charges while it sits idle, the way container services keep billing even while they doze. For a representative configuration we estimate that lands roughly 60% below comparable ephemeral sandboxes.

Bring your own stack

Install
anything

Root access and every package manager you already trust — apt, pip, npm, cargo, brew — across Python, Node.js, Rust, Go, Java, and Ruby. Add CUDA, run Docker, mount a big disk. If it runs on Linux, it runs here. And it is still here when you come back.

From zero to running

One command.A whole machine.

(01) — THE QUICKSTART

Install the CLI, drop in a key, ask for a machine.

Pick the virtual CPUs, the memory, and the disk you want, and seconds later you are running commands or holding an SSH session on a box that is entirely yours. Drive it from the terminal, or wire it straight into your code through the API — same machines, same speed.

CLI API SSH

quickstart — manssino

$ npm install -g manssino

$ manssino auth login # paste API key

✓ authenticated as you@team

$ manssino create \

--vcpu 4 --memory 8 --disk 50

✓ m‑7f3a live · 0.24s

$ manssino exec m‑7f3a "uname -a"

Linux m-7f3a 6.x x86_64 GNU/Linux

$ manssino ssh m‑7f3a

Command line

Install the CLI, set your API key, and create machines on the fly. create, exec, ssh, sleep, and resume — your whole fleet from one prompt.

Programmatic API

Provision and control machines straight from your code. Choose vCPUs, memory, and storage per request, run commands, and stream results into your agent loop.

Full SSH

Connect over SSH and treat the machine like any other Linux host — editors, debuggers, port forwards, tmux. It is a real box, so your real tools just work.

Built for the hard jobs

What agents
actually run

Fast, persistent, and securely isolated compute is the kind of substrate that automated and agentic workloads have been missing. Here is where it earns its keep.

ML training

Spin up GPU and CUDA machines with big disks, kick off a long training run, and let it ride. The filesystem and processes survive a sleep, so checkpoints, datasets, and environments stay put between sessions instead of rebuilding from scratch.

GPU · CUDA · LARGE DISK

Web scraping

Run real browsers on a real network stack, with persistent state that carries across runs. Install Playwright, rotate jobs, hold sessions and cookies, and resume an in‑flight crawl exactly where it paused — no warm‑up tax on every batch.

BROWSERS · PERSISTENT STATE

CI / CD pipelines

Give every pipeline its own isolated machine with root to install whatever toolchain it needs. Sub‑250ms boots keep queues short, and active‑only billing means idle runners between commits cost you nothing at all.

ISOLATED · FAST BOOT

Code generation

Hand a coding agent a genuine computer: install dependencies, run the tests, execute the code it writes, and keep the workspace warm between turns. Because the machine persists, the agent builds on its last session instead of starting cold.

EXECUTE · TEST · ITERATE

The isolation model

Safe enough foruntrusted code

Hardware + kernel boundaries

A real wall, not a polite suggestion.

Every machine is isolated at the hardware and kernel level — its own memory, its own filesystem, its own kernel — rather than leaning on container or lightweight‑runtime isolation that shares the host underneath.

Separate memory and filesystem boundaries per machine — a harder guarantee than container or JavaScript‑isolate approaches.
Safe to run untrusted, agent‑generated code — the blast radius stops at the machine’s walls.
Full root inside every instance — strong isolation outside, complete control within.

Request access

Waitlist open

Pay for compute,
not for waiting.

MANSSINO is rolling out through a waitlist to developers building agentic and automated workloads. Tell us what you’re building and we’ll get you a machine — fast, persistent, and isolated by design.

Under 250ms to a full Linux machine — no cold starts.
Persistent filesystem and memory across sleep and resume.
Billed for active compute only — nothing while idle, ~60% under comparable sandboxes by our estimate.

(281) 309-7346 hello@manssino.co 1406 Riverside Dr, Ste 32 · Sherman Oaks, CA 91423

Join the waitlist

A few details and we’ll be in touch about getting you onto MANSSINO.

Name * Please enter your name.

Work email * Please enter a valid email address.

Company / team

Primary use case * Please pick a use case.

Roughly how many machines, concurrently?

What are you building? * Tell us a little about your workload.

By joining you agree we may email you about access. No spam, ever — just MANSSINO.

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Thanks — your details are queued. Your mail client should open so you can send your request to hello@manssino.co. We’ll be in touch about getting you a machine.