AI and developer tools · Developer tools
Replay Attack Detector Seen it before? One API call tells you.
Send each event's ID or signature and Replay Attack Detector tells you whether that fingerprint was already seen inside your time window: NEW, DUPLICATE or REPLAY.
For security and payments teams that handle machine-to-machine traffic.
Live $19/month, $190/year · 14-day free trial
How to start
Choose a key and a window
Pick the ID or signature to use and how long to remember it.
Check each event
Send the key in one API call before you act on the event.
Act on the verdict
Handle NEW events, and ignore or investigate DUPLICATE and REPLAY ones.
What you get
Event fingerprints
Use IDs, signatures or any key you choose. Each is hashed when it arrives.
Windows you set
Choose a time window from minutes to days, for each type of event.
Clear verdicts
Get NEW, DUPLICATE or REPLAY, with the time it was first seen.
A replay dashboard
Spot spikes that may point to an attack.
One call on the hot path
Check an event with a single API call.
See it in action
Everything included
- Fingerprints from IDs, signatures or keys of your choice
- Time windows set per event type
- NEW, DUPLICATE and REPLAY verdicts with the first-seen time
- A dashboard for replay spikes
- A Usage page that counts every check
Pricing
$19 per month
$190 per year
That works out at about $15.83 a month when paid yearly.
14-day free trial. A card is required to start. You are charged when the trial ends unless you cancel first. One free trial per customer and card.
Cancel at any time. Your plan stays active until the end of the period you have paid for.
Yearly plans: you may ask for a full refund within 14 days of the first yearly charge. See the Refund policy.
Prices are in US dollars.
Questions
What is the difference between a duplicate and a replay?
A duplicate is the same key again inside the window. A replay is the same key with a different body or origin.
Can windows differ by event type?
Yes.
How does the free trial work?
You get 14 days free. We ask for a card when you start. You are charged when the trial ends unless you cancel first. One free trial per customer and card.
Can I cancel?
Yes, at any time. Your plan stays active until the end of the period you have paid for, and we do not charge you again. If you prefer, write to [email protected] and we will cancel it for you.
Start with Replay Attack Detector
AI can make mistakes. Please check everything before you use it.
Questions? Write to [email protected]. See all products.