PaySentinel is a pre-payment fraud detection tool built for AP clerks, bookkeepers, office managers, and small business owners who need to verify invoices and vendor payments before authorizing a wire or ACH transfer, without enterprise-level setup or cost.
Most payment fraud isn't caught by accounting software. It's caught by humans noticing something is off, or not caught at all until the money is gone. PaySentinel gives that human a structured second opinion in under a minute.
What PaySentinel checks:
Vendor legitimacy - business registration, domain age, lookalike patterns
Routing and account numbers - against known fraud signals and your vendor history
Invoice red flags - missing purchase orders, round amounts, urgency language, format anomalies
Email signals - spoofed domains, BEC patterns, pressure tactics
Banking detail changes - the highest-risk event in any AP process
Who it's for:
PaySentinel is purpose-built for small businesses and the bookkeepers, AP clerks, and office managers who manage their payments. It requires no integration, no IT setup, and no account to get started. Paste in the details, get a risk score and flagged signals in seconds.
Why it's different:
Enterprise fraud tools are built for banks and large corporations, they require months of integration, expensive contracts, and dedicated fraud teams to operate. PaySentinel is the opposite: a single page, no login required for the free tier, and results in under a minute. It was built by a fraud analyst with direct experience investigating payment fraud, account takeovers, and phishing, not by a product team guessing at what AP clerks actually need.
Key capabilities:
Vendor check - verify a new or changed vendor before onboarding
Invoice check - analyze an invoice for fraud signals before approving payment
Email check - evaluate a suspicious payment request or banking change email
Transaction check - run routing numbers and account details before initiating a wire or ACH
Risk scoring - every check returns a risk score (Low / Medium / High / Critical) with specific flagged signals
No setup required - free tier requires no account, no integration, no IT involvement
