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The free tool below runs entirely in this browser — no account, nothing stored or transmitted. Redact anything you would not want kept before you type it.
Open the companion tool →Why autonomous purchasing agents require strict financial boundaries
AI agents can misinterpret instructions, order incorrect quantities, or fall prey to dynamic pricing traps.
Using single-use virtual credit cards with fixed dollar limits prevents unexpected merchant overcharges.
The protocol
- Never store your primary credit card directly inside unverified AI agent tools.
- Use virtual card services (offered by many banks) to set maximum spend limits per transaction.
- Require mandatory two-factor push approval before the agent finalizes any purchase.
- Review transaction receipts daily when testing new automated purchasing tools.
What the tool does
Build a financial authorization boundary for AI shopping and booking agents. Runs in browser.
Limit first: This is a financial boundary planning tool. It does not issue credit cards directly.
Open the companion tool →One human next step
Set up account alert notifications with your credit card issuer for any transaction over $25.
Research log and safety checks
AI-assist path: permission agreement builder. §6.10: not a frontier-pace topic.
§0.5 protection result: category is financial-agent-exposure; crisis-adjacent: no; fear/urgency/scarcity toolkit used: no. The protective function is free and the paid feature is convenience only.