Pricing – Castle
Choose your plan
Get started with options that fit your needs. Fully transparent pricing with linear scaling and no hidden fees.
Available plans
Free
- Price: $0 /mo
- Includes: $5 of API usage (5,000 IP lookups, or 1,000 Risk API calls)
- Description: Evaluate Castle's solutions for free before going live
- Key Features:
- All core features
- 3 days data retention
- 3 seats, 1 environment
Pro
- Price: $200 /mo
- Includes: $200 of API usage (200,000 IP lookups, or 40,000 Risk API calls)
- Description: Launch your project with unlimited calls and no contractual minimums
- Key Features:
- Everything in Free, plus:
- Higher rate limits (5 API requests / second)
- 7 days data retention
- 5 seats, 2 environments
- Chat & email support
- Everything in Free, plus:
Enterprise
- Price: Custom, starts at $4,000/mo
- Description: Tailored solutions, MTU or volume pricing, and dedicated support
- Key Features:
- Everything in Pro, plus:
- No rate limits
- Up to 18 months data retention
- Unlimited seats & environments
- Dedicated Slack channel & SLA
- Everything in Pro, plus:
Compare plans
| Plan | Real-time API | Querying API | API requests per second | Data exploration | Seats | Environments | Support | SLA | Included API usage | Risk / Filter request | IP Intelligence request | Bot Score | Abuse Score | ATO Score | Raw device attributes | VPN Detection | Jailbroken device detection | Emulator detection | Rooted detection | Disposable email |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Free | yes | no | 1 RPS | 3 days | 3 | 1 | Documentation | no | $5 / mo | $0.005 | $0.001 | yes | yes | yes | yes | yes | yes | yes | yes | yes |
| Pro | yes | no | 5 RPS | 7 days | 5 | 2 | Chat, Email | no | $200 / mo | $0.005 | $0.001 | yes | yes | yes | yes | yes | yes | yes | yes | yes |
| Enterprise | yes | yes | Unlimited | Up to 18 mo | Unlimited | Unlimited | Dedicated Slack | yes | Custom | Custom | Custom | yes | yes | yes | yes | yes | yes | yes | yes | yes |
Frequently asked questions
How many API requests are included with each plan?
- Successful Risk and Filter requests are billed at $0.005 each, while every valid IP entity returned by a single or batch lookup is billed at $0.001.
- The Free plan includes $5 of API usage, equivalent to 1,000 Risk and Filter requests, 5,000 IP entities, or any mix of the same value.
- The Pro plan includes $200 of API usage, equivalent to 40,000 Risk and Filter requests, 200,000 IP entities, or any mix of the same value.
What is the difference between Risk and Filter requests and IP lookups?
- IP Intelligence lookups give you connection intelligence for a specific IP through a simple API call. Risk and Filter requests are available when you build a full Castle integration, providing deeper intelligence about user behavior, devices, and risk scores.
What happens when I use my plan's included API budget?
- On the Pro plan, usage above the monthly included budget is billed on a pay-as-you-go basis at the same per-request rates. The Free plan has a fixed API budget for evaluating Castle and does not support overages. Upgrade to Pro before production for higher rate limits and uninterrupted pay-as-you-go access.
Does unused API budget roll over to the next month?
- No. The unused portion of your included API budget expires at the end of each billing cycle, and a new monthly balance becomes available when the next cycle begins.
Can I change my plan later?
- Absolutely. You can upgrade or downgrade your plan at any time through your billing settings.
What is your cancellation policy?
- You can cancel your subscription at any time. Your plan will remain active until the end of the current billing cycle.
What types of payment do you accept?
- We accept all major credit cards. For Enterprise plans, we can also arrange invoice payments.
Do you provide Service Level Agreements (SLAs)?
- Yes, we offer SLAs for our Enterprise plan customers. The specifics of the SLA, including uptime guarantees and response times, can be customized to meet your business requirements.
Do you offer support for the setup and integration of your APIs?
- Dedicated support for the setup and integration of our APIs is available exclusively with our Enterprise plan. This includes personalized assistance to ensure that the integration process is smooth and fits within your technical infrastructure.
Do you offer pricing based on Monthly Tracked Users (MTU) instead of API usage?
- Within our Enterprise plan, we provide the flexibility to choose an MTU-based pricing model. This alternative allows you to pay based on the number of unique users you track each month rather than the volume of API calls. This option can be especially cost-effective for businesses with high user engagement levels.