Prometheor
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Your AIs, finally working together.

Ask the AI you like. It hands the task to agents that work visibly in their own desktop apps, and brings back one checked result.

Request early access How it works

For macOS 13 or later · Free to start, Pro $15 a month

Every AI works alone.

ChatGPT, Claude, Cursor, Muse, Grok Bot and Antigravity each keep their own context and tools. You carry the work between them, one copy and paste at a time.

They hand work to each other.

You ask in one app. The task travels to an agent in a real desktop app, and a checked result comes back to where you asked.

Ask in one. Let the others do the work.

Works with ChatGPT, Claude, Cursor, Muse, Grok Bot and Antigravity. Codex comes with ChatGPT, Claude Code with Claude. Pick where you ask and who does the work.

Ask in
Work done by

“Rebuild the pricing page.”

You see every step. You decide.

The work happens in the desktop apps you already have, in the open. Every step shows up in the chat where you asked, and the flame in your menu bar tells you when an AI needs you.

Watch it, or take over
Every task opens in the app's own thread. Read along or continue by hand at any point.
Outside actions need your OK
Sending, publishing or paying waits for you, one action at a time.
Allowed folders only
Each agent works inside the folders you give it and nowhere else.
Logins stay with you
Credentials stay on your Mac or with the app provider, never in Prometheor.
Task #47 · Login test What you see in Claude
AskedFix the login test and push it. Give it to Codex.Claude
Handed over#47 handed to Codex on your MacBookCodex
Asks youDelete the old test account, or create a new one?Codex
DoneTest green and pushed · 4 minCodex
To stop a task, tell any AI: “Stop #47”.

Start free. Go Pro for 100×.

Try Prometheor free on one Mac, no card needed. Pro gives you 100× the usage of Free*, plus schedules, AI chains and cloud AIs. Your agents run in the apps and plans you already have.

Prometheor Pro
Monthly$15per month
Yearly$144per year, $12 a month

Founding offerThe first 100 yearly customers pay $99 for their first year.

Invite a friendAs a Pro customer, give a friend a free month. Once they pay for Pro, their next month and yours are free.

Request early access

Free

  • Hand tasks between ChatGPT, Claude, Cursor, Muse, Grok Bot and Antigravity
  • Agents at work in Codex, Claude Code and Cursor on one Mac, two apps at a time
  • Limited usage to try it*, no card needed
  • Your OK before every outside action

Pro adds

  • 100× the usage of Free*
  • Schedules and AI chains
  • Cloud AIs such as Grok Bot, and more Macs and apps

How moving to Pro works

  1. Start freeUse Free as long as you like. No card needed.
  2. Move to ProPay with Apple Pay or a card when you need more. Pro starts at once.
  3. Any timeCancel on your account page. Withdraw within 14 days for a full refund.

*Free: 20 successful tasks a month on one Mac with two AI apps; tasks that fail do not count. Pro: up to 2,000 tasks a day, as much as 100 Free months, every day. The AI work itself runs on your own AI subscriptions and their limits.

Prices in US dollars. In euro countries you pay the same amount in euros. Final prices; no VAT is charged (small business, Section 19 UStG). Available in the EU and the US.

Get started in three steps.

One app for your Mac does the setup. No Terminal, no links to copy. It takes a few minutes.

  1. Get Prometheor for Mac

    Prometheor for Mac is in early access. Ask for early access and we send you the app. It is signed by Kian Peters, checked by Apple and lives in your menu bar.

    Request early access

    macOS 13 or later, on Apple silicon or Intel.

    Linux, such as Ubuntu, Debian or Fedora, also a server, follows with early access. On Windows you can still ask from any AI; a Mac or Linux computer of yours does the work.

  2. Sign in for free

    Click Sign in in the app. Your browser opens: sign in with Google or your email. Free needs no card. Move to Pro any time on your account page.

  3. Pick your AIs

    Choose the AIs you ask in: ChatGPT, Claude, Cursor, Grok Bot or Antigravity. The app walks you through adding Prometheor to each one and checks that Codex, Claude Code and Cursor are signed in on this Mac.

    Then ask any of them: Ask Codex on my Mac to create hello.md with three ideas for a weekend project.

Questions

What does Prometheor do?

It lets the AI you talk to hand a task to agents in their own desktop apps. They do the work there, in the open, and one checked result comes back to where you asked.

Which apps does it work with?

You can ask in ChatGPT, Claude, Cursor, Muse, Grok Bot and Antigravity. The work is done by Codex, Claude Code and Cursor on your Mac, or by Grok Bot in the cloud.

Do I need a Mac?

Yes, to start. You can ask from anywhere, also from your phone, but the agents work on your Mac. If it is asleep or offline, your task waits safely and starts when it is back.

Who decides what an agent may do?

You do. Each agent only gets the folders you allow, and every action that leaves your Mac needs your OK. Logins stay on your Mac or with the app provider. To end everything at once, tell any connected AI to stop everything.

What does it cost?

Free to start, no card needed: 20 successful tasks a month on one Mac with two AI apps; tasks that fail do not count. Pro is $15 a month or $144 a year ($12 a month, 20% less than paying monthly), paid when you move to Pro, with a full refund if you withdraw within 14 days: up to 2,000 tasks a day, 100 times the Free month every day, plus schedules, AI chains and cloud AIs. The first 100 yearly customers pay $99 for their first year, then $144 a year. As a Pro customer, invite a friend with the code on your account page: once they pay for Pro, their next month and yours are free. The AI work itself runs on your own AI subscriptions and their limits.

How do I cancel?

On your account page at app.prometheor.com, or with Cancel contracts here at the bottom of this page. You keep access to the end of the period.