"Asked the agent to book the earliest flight home. Economy was sold out, so it put a $1,140 Business Class fare on the card on file. Technically completed the prompt."
Ezn Rule
HELD · INTENT GATE (NO UPGRADES)
Ezn is the permission router and vault between your agents and your cards. Route every tool call by vendor, intent, and rule.
You're on the early access list.
Which AI assistant do you use?
How do you want it to pay safely?
Rule router + credential vault
Field reports · From the wild
"Asked the agent to book the earliest flight home. Economy was sold out, so it put a $1,140 Business Class fare on the card on file. Technically completed the prompt."
"When nobody answered the approval prompt, the silent default quietly decided five payouts. And two people clicking approve at the same moment both passed."
"The failure was never one big purchase. An agent that cannot buy one $300 item can still buy seven $45 items in ten minutes when it hits a retry loop."
Vault & Authority
Common questions
A virtual card only has a blunt dollar ceiling and still exposes a chargeable 16-digit card number to the agent. Ezn vaults your existing cards, routes each agent to the right payment rail, and checks vendor, item intent, and velocity before paying.
Prompts can be compacted, hallucinated past, or hijacked by prompt injection on a checkout page. Ezn executes outside the LLM as a deterministic gate.
No. Ezn is non-custodial and works with the cards, Apple/Google Pay, bank accounts, and merchant accounts you already use.