Free Plan

At Castle, we understand that integrating a new service into your systems is a significant commitment. It's crucial for developers and businesses to have the freedom to fully assess a new service on their own schedule. That's why we're thrilled to announce the launch of our new Free Plan, a testament to our commitment to straightforward and accessible business practices.

The Free Plan is designed with your exploration in mind, offering up to 1,000 API calls per month at no cost. We believe in providing our potential customers with the time they need to thoroughly evaluate our service, often taking months, before deciding to fully implement it in a live environment.

With this plan, you can:

• Integrate with your systems to evaluate performance and compatibility.
• Test drive our features without rushing the decision-making process.
• Experience our robust fraud detection tools in real-time, without any financial commitment.

We're not just offering a free trial; we're providing a full-fledged plan that supports your evaluation journey from day one, all the way to your eventual decision to go live in the full production mode. It's about offering flexibility and building trust with you, our valued developers and customers.

Ready to explore? Get started with the Free Plan today and take the time you need to discover how Castle can protect and verify your users.