Get started

Go to cortesso.com/app and enter your email. A six-digit code arrives; check Junk the first time. Type it in. There is no password and nothing to install for this step.

1. Get your connector token. In the dashboard, open Connect, pick Claude or ChatGPT, and copy the address and the token. The token is shown once.
2. Claude: Settings → Connectors → Add custom connector. Paste the address, then the token when it asks to authenticate.
3. ChatGPT: Settings → Connectors → Advanced → turn on Developer mode. Then Connectors → Create, and paste the address and the token.
4. Make it automatic. Paste the one-paragraph instruction from the Connect screen into a project's custom instructions. From then on the AI checks your memory before it answers and saves where the work got to, without being asked.

A browser extension for chatgpt.com, claude.ai, grok.com and gemini.google.com. It works inside those sites, on your own account with each of them, with no API key and nothing to paste. Being signed in to cortesso.com in the same browser is being signed in to the extension.

1. You type. A small pill by the message box says, for example, Cortesso · 2 from memory. Click it to read those two lines, cross one off, or turn it off for this message.
2. You send. The lines go with your message, so the AI knows what you told it before, or what you worked out with a different AI yesterday. When nothing in your memory is relevant, nothing is added, and small talk is never touched.
3. The answer arrives. The chat is saved to your Cortesso memory as the page shows it, with any pasted passwords or keys removed.
4. Select any text in a reply and choose Remember in Cortesso. One click, one fact, every AI.

It is not in the Chrome Web Store yet. For early access, email hello@cortesso.com. When a site changes its page, the pill turns red and says so, and nothing is sent until it is fixed.

In the dashboard, open Memory and add three things you keep re-explaining: how you like answers, who someone is, what you decided. Or drop your ChatGPT or Claude data export and your past conversations become memory; pasted keys and passwords are removed on the way in. Then ask any connected AI something only you would know.

New API keys are paused during early access, while key storage is being hardened. Everything above works without one. When keys open again, this is how they work.

Some things run inside Cortesso itself, on your behalf: positions (an AI CFO, designer or ops lead that works from your memory), side-by-side answers from several AIs in Chat, the Roundtable, and the Monday brief. Those need an API key from the AI company, added once under Settings → Engine keys. One key from the company you already use is enough to start.

• A ChatGPT Plus or Claude Pro subscription does not include API use. The key is billed separately by that company, at its own prices, to your account with them.
• Set a monthly spending limit at that company when you create the key, and a daily cap on it in Cortesso. Cortesso never marks up the price and never runs anything on keys of its own.
• Keys are checked with the company before they are stored, sealed at rest, and never shown again.

• The extension talks only to cortesso.com, and only on the four chat sites listed above. Nothing from your other tabs.
• It sends the message you are about to send (to choose what to add), the chat as the page shows it (to save it), and text you chose to remember.
• Everything goes to your own memory, or to a team you belong to if you choose that in the extension. That choice is always shown.
• Your memory is encrypted at rest with a key Cortesso holds, so Cortesso can read it to serve you. It is never used to train models. Export everything or delete everything from Settings, any time. More on the Trust page.