Bluff watches your card.

Every charge, checked against the website behind it. Bluff crawls the merchant's site and an NVIDIA Nemotron agent reads it like an investigator, then texts your T-Mobile phone and drafts the dispute.

Scan my transactions Check a site before you buy

Bluff

Unsure

Legit

Charges watched

Imported from Capital One on your first scan

Likely scams

0 more unsure

Needs attention

See every charge

No scan yet. Bluff imports your Capital One charges and checks the website behind each one.

Run your first scan

Nov 3TST* QWKPAY$1.00Card test

How Bluff works

Capital One Nessie feedYour card's charges arrive from the Nessie sandbox API.
Crawl the merchant's siteRefund, terms, contact and checkout pages, plus registry facts.
Nemotron reads itAn NVIDIA Nemotron agent uses tools to review the pages and cites what it found.
T-Mobile text + dispute draftRisky charges are texted to your phone, with a dispute drafted for you to review.

Texts on your T-Mobile phone

No texts yet. Bluff texts you when a charge or a site you used looks risky.

Read and reply on the phone preview (its button is at the top of the page). Delivery is in-app; no real SMS is sent.

Before you pay

Not sure about a store or a text? Bluff runs the same crawl and Nemotron review on demand.

0 sites where you entered your card this week.

Check a site Sites you used your card on

Proof: how well it works Chrome extension Privacy

Money at risk

$0.00

on flagged or unsure sites

Last scan

never

Run your first scan