Free fraud detection tools
The same signals our API returns, as tools you can use right now. No signup, no card. Each one shows the equivalent API call underneath, so you can move from checking one value by hand to checking every signup automatically.
Fraud check playground
Paste an IP, email, phone number or domain and get the risk score with a plain-English explanation of every signal behind it.
IP lookup
Check any IP for VPN, proxy, Tor and datacenter use, with country, city and network operator. Loads your own address to start.
Disposable email checker
Find out whether an address is throwaway, role-based or from a free provider — and whether the domain can receive mail at all.
Domain age & risk checker
Registration date, registrar and mail configuration, with disposable and risky-TLD detection. Paste a domain or a full URL.
Phone number validator
Validate any number worldwide against its national numbering plan. Returns country, line type and E.164 format.
Verification cost calculator
What email, phone, IP and domain verification costs at your monthly volume, on every plan including free. Same numbers the billing system uses.
Phone number formats by country
Country calling code, national and international notation, E.164 form and digit length — the reference for why a number your form rejected was actually fine.
Public Trust Index
Disposable-email domains by TLD, published VPN exit-node counts, live Tor exits and verified datacenter ASNs. Updated weekly.
Need this in your code?
Every tool here is a thin layer over the LayerCall API, which also returns the reputation signals the free tools hold back — whether a value has been reported for abuse, when it was first seen across the network, and how many customers have flagged it. One call scores a whole signup: IP, email, phone and domain together.
1,000 lookups a month free. No card required.