Kato Spaces is the optimal cloud hosting solution for the IBM i (formerly iSeries or AS400). With our hosting, you'll have access to a team of experienced IBM i professionals who are dedicated to helping you optimize your use of the cloud. We offer a variety of benefits including scalable pricing, month-to-month terms, greater business agility, and lightning-fast processing.
Our facilities are securely staffed 24/7
Includes everything you need to get started with IBM i development
Be prepared; Kato Spaces is your high availability solution in the cloud
All systems include access to IBM support
Backed by SLAs with a 99.99% uptime guarantee
Work with our team for PTF & OS update services
We offer the most competitive pricing for start-up systems in the industry! You can create a Kato Spaces IBM i system for as little as $260 per month.
You get a dedicated IBM i Power9 server partition. Your Kato Spaces partition is a clean and straightforward system, ready for development.
Get powerful pre-installed software including ILE compilers, IBM HTTP Server for i, System/36 and System/38 Utilities, BRMS*, open source packages, and more.
Have assurance when moving to the cloud. Begin using your IBM i in as little as 48 hours.
Sometimes you just need more manpower. Hire our team to help build out your next API project.
Kato Spaces is IBM i cloud hosting built specifically for organizations running AS/400 or iSeries systems who want to move off on-premise hardware without migrating to a different platform. You get a dedicated IBM i Power9 partition in a secure, managed facility — starting at $260 per month, month-to-month, with no setup fee. It’s designed for IBM i shops of any size: development teams that need a clean system for building and testing, businesses looking to reduce hardware costs, and organizations that need a high-availability or disaster recovery environment in the cloud.
Every Kato Spaces system includes a dedicated IBM i Power9 partition with full QSECOFR administrative access, a static public IP address, pre-installed software including ILE compilers, IBM HTTP Server for i, System/36 and System/38 utilities, and open source packages. IBM maintenance contract is included. You get proactive system performance and event monitoring, and the system is ready for development in as little as 48 hours. Optional add-ons include SSL VPN and IPSec tunnel connections, VTL backup with BRMS, and PTF and OS update services managed by Kato’s team.
Kato Spaces pricing is modular — you configure the system you need and pay for what you use. Base components are priced per unit: processing power (CPW) at $170/month per 725 CPW, RAM at $20/month per 2GB, and disk storage at $70/month per 250GB of NVMe Flash. Optional VTL backup is $25/month per 250GB of disk. Additional SSL VPN users are $7/month each. There’s no setup fee and no minimum term — month-to-month means you can scale up, scale down, or cancel without penalty. A basic starter system can be configured for around $260 per month.
Yes. Kato Spaces operates in a HIPAA, SOC 2, and PCI compliant facility that is staffed 24/7. Your partition is dedicated — you’re not sharing resources with other tenants. You have full QSECOFR access, meaning you control your own security configuration. Data is hosted in a secure facility with proactive event monitoring. For organizations in regulated industries or handling sensitive data, the compliance certifications and dedicated architecture provide a meaningful baseline.
Kato provides migration support and guidance as part of the hosting relationship. Once your partition is provisioned — typically within 48 hours — Kato’s team of IBM i professionals works with you on the transition. Because the environment is a native IBM i partition, migration from an on-premise IBM i system follows the same processes IBM i administrators already know — there’s no platform translation involved. For organizations with complex environments or tight timelines, Kato’s professional services team can be engaged for hands-on migration assistance.
Kato Spaces is backed by a 99.99% uptime SLA. Systems are monitored proactively for performance and events. IBM support access is included with all systems. For organizations with higher availability requirements, Kato Spaces offers a high availability option — your Kato Spaces partition can serve as the HA or DR system for your primary IBM i environment. HA/DR licensing for RPG API Express is also available at a discounted rate for these configurations.
Yes — and this is a common use case. Many IBM i shops use Kato Spaces as a clean development or testing partition separate from their production environment, particularly for API development work with RPG API Express. The month-to-month terms and configurable specs make it practical to spin up a development environment without a long-term commitment. Because the partition comes pre-loaded with ILE compilers and IBM HTTP Server for i, it’s ready for RPG and API development work without additional setup.
AWS and Azure don’t offer native IBM i infrastructure — running IBM i in those environments requires specific arrangements that are typically more complex and expensive than dedicated IBM i hosting. Kato Spaces provides dedicated IBM i Power9 hardware managed by a team that specializes in IBM i, which means the infrastructure, support, and tooling are all designed for the platform rather than adapted from general-purpose cloud infrastructure. For IBM i workloads, purpose-built IBM i hosting typically offers better performance, simpler management, and lower cost than trying to run IBM i on hyperscaler infrastructure.