AI assistants can now book trips and buy groceries. That raises a question: what happens to your credit card number once an agent has it? Self Labs launched Agent Vault on October 15, 2026, as its answer. This story is based on the company's own announcement.

How it works

Self Labs says the agent never sees your real details. When it checks out, it fills in the form with mock tokens, stand-ins that are worthless on their own. Self says the real card number is only swapped in inside a locked-down secure computing area, so the store sees a normal card payment.

Logins work the same way, Self says. Your real username and password are swapped in at sign-in, out of the agent's view. The idea is that even if someone tricks the agent, it holds nothing worth stealing.

You set the limits

Self says you can cap spending per day, week, month or purchase, limit the card to named stores, and shut it off at any time.

Works with many assistants

Self says Agent Vault connects to assistants including Muse, OpenClaw, Hermes, Grok Bot, Claude and Codex. Because your details live in one place, Self says, switching to a new assistant does not mean setting everything up again.

Self says testers in its private beta logged in or bought things on hundreds of sites, including Booking.com, Instacart, Amtrak and eBay. Stores do not need to set anything up, according to the company.

Who is behind it

Self Labs makes an identity app that proves you are a real person. CEO Rene Reinsberg says Self verifies over 20 million real humans. That is the company's number.

What you can try

Self says Agent Vault comes in Free, Plus and Enterprise tiers at agentvault.io. The announcement does not list prices. Self says the first 1,000 sign-ups get Plus free for three months. If you try it, set a low spending cap first.

Source: Self