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PennyWall

The security guard for autonomous spending.

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No credit card required.

1

Your AI agent pays
as it goes.

A small robot reaching up to a shelf to make a payment

No forms. No saved cards. No clicking confirm. Your agent pays a fraction of a cent, hundreds of times a day, for the data it needs. That's the whole point of autonomous payments. It should never touch you.

2

But it's paying in
plain text.

A robot handing a payment receipt to a hooded figure

Every one of those tiny payments carries details with it. Who sent it. What it was for. Where it came from. Multiply that by a thousand transactions a day, and your agent is leaving a trail anyone could read.

3

PennyWall makes
sensitive data simply
untraceable.

A robot redacting the details on a payment receipt

Every payment gets scanned and redacted before it leaves. Your agent still moves freely. Nothing personal moves with it.

Questions people actually ask

If yours isn't here, the fine print is on the Terms and Privacy pages.

How do I secure my AI agent's payments?

Every payment your agent makes carries details with it, who it paid, what for, sometimes personal information sitting right in the description. PennyWall sits in front of those payments, scans them for anything sensitive, and strips it out before the payment goes through. You also set a daily budget and a cap on any single payment, so nothing can spend more than you're comfortable with. It takes a few minutes to set up and it's free.

Does PennyWall store the personal information it finds?

No. When PennyWall catches something like an email address or a card number, it redacts it and only remembers which category was found, never the actual information. The same goes for your own account. Passwords and API keys are stored as one way hashes, so even we can't read them back.

Is PennyWall free?

Yes, completely. No plans, no tiers, no card required to sign up.

How do I connect PennyWall to my AI agent?

Sign up, create an API key from your dashboard, and add one call in your agent's code that sends the payment to PennyWall before it goes through. You get back a plain allowed or blocked, along with a cleaned version of the payment with anything sensitive already removed.

What happens if my agent tries to spend too much?

PennyWall blocks the payment and tells you why. You set your own daily limit and a cap on any single payment from your dashboard, and those limits are checked before every payment goes through, not after.