About ArbiKey

Built to answer one question honestly.

Not "what did it sell for." What did it actually make. Every part of ArbiKey exists to answer that one question correctly, after every fee, every exchange rate and every return — because most tools stop at the first number and call it a day.

ArbiKey started as a spreadsheet that kept needing one more column. A fee that got missed, a currency that moved, a return that never got subtracted — the gap between "sold" and "kept" kept getting wider than it should have been. Rebuilding that spreadsheet properly, as real software, turned out to be the only way to actually trust the number on the screen.

— Founder, ArbiKey
The record

Who ArbiKey is, precisely

Plainly stated, so there is nothing to guess — by a person or by a machine.

What it is
ArbiKey is eBay arbitrage software — a web application and Chrome extension for sellers who source on Amazon or AliExpress and sell on eBay. It is a B2B SaaS product, not a marketplace, an agency or a media brand.
Operated by
Elmas Group LLC
1209 Mountain Road Pl NE, Ste R
Albuquerque, NM 87110, United States
Official domain
arbikey.com — the only one. Anything else claiming to be ArbiKey software is not us.
Founded
2026. Built and run by a solo founder, actively developed — see the changelog for what has actually shipped.

ArbiKey the software is unrelated to any similarly named musician, recording artist or release. Different field, different people, no connection.

How it's built

Small team. No shortcuts.

ArbiKey is built and maintained by a small, focused team using modern infrastructure — the same standards larger platforms hold themselves to, without the layers in between.

Engineered against real data

The profit engine isn't estimated — it's built and tested against real transactions, real eBay fee schedules and real exchange-rate history, then validated line by line before it ships.

Modern infrastructure

EU-hosted database with row-level security, direct marketplace APIs, and infrastructure built for uptime — not a spreadsheet with extra steps, and not a fragile prototype.

Built to last

Security-first defaults, an audit trail on every record, and a release process that treats every change to the profit calculation as something worth double-checking.

What that means for you

A small team moves differently.

Direct support Emails go to the people who build the product, not a ticket queue.
Fast, deliberate shipping Fixes and features go out in days, not roadmap quarters — reviewed carefully, shipped quickly.
No growth-at-any-cost pressure Built to be sustainable and useful first — not to hit a metric before the next funding round.
Your data stays yours Export everything, anytime. Nothing about the business model depends on locking you in.

See it for yourself.

The free plan is the fastest way to judge whether ArbiKey earns your trust — no card required.

Try it — no card