Nord Express

Nord Express · Software

Software that works around the clock, with people in charge.

We are the team behind Arbitron and Arkship: automated crypto arbitrage that never holds your funds, and AI agents that look after a codebase and ship nothing without a person’s yes.

Our products

Products

Two products, one idea: let the machine do the night shift

Arbitron

arbitron.app

Earn the spread, not the direction.

Automated perpetual-futures arbitrage across 19+ exchanges. Arbitron trades with trade-only API keys that have no withdrawal rights, so funds never leave your own accounts.

  • Funding rates and executable spreads across 19+ exchanges
  • Trade-only keys: no withdrawals, ever
  • A public API and MCP server for your own tools
Visit arbitron.app

Arkship

arkship.app

See your code. Put agents on it. Approve what ships.

A hub that draws a repository as a living map and runs Claude Code or Codex agents on it around the clock, within hard limits. Nothing ships until a person approves it.

  • A living map of every service and file
  • Hard caps, a skeptic reviewer and a revert brake
  • Self-hosted today, Arkship Cloud on its way
Visit arkship.app

Principles

How we build

  1. 01

    People stay in charge

    Arbitron trades with keys that cannot withdraw. Arkship ships no change a person has not approved.

  2. 02

    Proven on ourselves first

    Arkship’s agents look after Arbitron’s own code every day. Every feature runs in our production before it reaches yours.

  3. 03

    Built to run unattended

    Both products work through the night and call a person only when a decision needs one.