Pay-as-you-go pricing

Simple and predictable. Don't pay for bot spikes and junk traffic.

Pro

A complete account defense platform with predictable, pay-as-you-go pricing

$33
per 10,000 good events, per month A good event is any event associated with normal user activity. Events associated with malicious activity include $login.failed or any event where a Castle policy issues a deny or challenge verdict.

What's included

Bot Detection
Account Takeover Prevention
Policy Management
Device Management
User Behavior Analytics
REST API & Webhooks
Email & chat support
Credit card payments
Start 30-day trial

Enterprise

Design a custom, white-glove package with committed-use discounts

Custom
$2,800/mo minimum commitment

All Pro features plus

Volume discounts
Enterprise SLAs
Enterprise support
Customizable billing
Invoice payments
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Frequently Asked Questions

Discover how Castle can help you protect your users

How do you define a "good" event?

A good event is any event associated with normal user activity. Events associated with malicious activity include $login.failed or any event where a Castle policy issues a deny or challenge verdict.

Is there a free trial?

There is! There is a 30-day trial for the Pro plan that should give you enough time to evaluate our APIs in production.

What if I decide to cancel?

If you no longer wish to subscribe to the Pro plan, you can cancel at any time. At that point, your subscription will last until the end of the current monthly billing cycle.

If I don’t use all the events in a month, will they roll over?

Events are purchased in tiers of 10,000 events. Any unused events will expire on the first day of each billing period, and do not accumulate. This also applies to monthly commitments on the Enterprise plan.

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