Kracht
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Introduction

Kracht is the API and CLI for on-demand GPU compute. Launch a GPU in seconds, run your workload, and pay per second from your terminal, Python, or raw HTTP.

kracht launch --gpu h100api key readyjob.status runningdocs indexed

Quickstart

From setup to a sample H100 launch in three commands.

kracht · deploy
$

Pick your interface

Explore

Discover the full range of features and capabilities.

compute

Instances

Spin up H100s, A100s and more, billed per second.

scratch

Storage volumes

A scratch volume per rental, destroyed when it ends.

private

Networking

WireGuard in, TLS between services, egress off by default.

metered

Billing & usage

Per-second metering in euros, against a prepaid balance.

Provider onboarding

Lending a machine is one command. The agent runs unprivileged, isolates each rental, and reports capacity so the marketplace can match it.

Install the agentUbuntu · sudo
  1. 01

    Register the machine

    Add a host in your dashboard. You get an enrollment token, shown once.

  2. 02

    Run the command on it

    One line, on a fresh Ubuntu box. Idempotent, so re-running it upgrades the agent.

  3. 03

    It appears in your fleet

    The agent registers itself and starts reporting. Listed capacity, earning when rented.

curl -fsSL https://cp.kracht.ai/install.sh | sudo bash -s -- \
  --control-plane-url https://cp.kracht.ai \
  --enrollment-token <YOUR_TOKEN>

<YOUR_TOKEN>is issued when you register a machine, and shown once. It is bound to that machine from the moment it exists, so a leaked token cannot enroll someone else's box as a host.

What this script does to your machine
  • Installs prerequisites with apt, including Docker.
  • Creates an unprivileged system user, kracht-agent. Nothing runs as root after setup.
  • Installs the node agent as a systemd service so it survives a reboot.
  • Sets up an isolated session network, reapplied at every boot.
  • Optionally hardens SSH to key-only with no root login (--harden-ssh).
  • Optionally configures an nftables firewall, default-deny inbound (--firewall).
  • Optionally enables Docker user-namespace remapping, so a renter's container cannot map to root on your host.

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Two sides, one marketplace

Spin up the GPUs you need - or earn from the ones you already own

Rent on-demand compute by the second, or list idle hardware and let it pay for itself. Same marketplace, both directions.

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Product updates and early access to new GPU classes. No spam.