In development
Enterprise virtualization, compatible with the vSphere APIs
Kyvernon is a virtualization platform with its own hypervisor, Kyvernon VMM, written in Rust. Existing vSphere tooling connects without changes, including PowerCLI, Terraform, Ansible, monitoring and backup software.
- Kyvernon VMMHypervisor written in Rust, running on Intel VT-x and AMD-V.
- vSphere APIsSOAP, REST, datastore and OVF endpoints.
- Air-gappedNo telemetry and offline upgrades. Licence files are designed to work offline.
- Free tierOne host and up to 10 running virtual machines with local storage. Opens with general availability, see pricing.
Web console
Inventory tree, object views, tasks, events and alarms in one window, and the screen of each virtual machine: the console opens in the browser with a ticket that works once, shows the firmware, the installer and the login prompt, sends Ctrl+Alt+Del and types pasted text. The vSphere term can be shown next to each Kyvernon term. Shown: development build with sample data.
Measured figures
- 16 Gbit/sTCP between two virtual machines on one host, 1 stream. 25.6 Gbit/s with 4 streams.
- 0.19 sLinked clone of a virtual machine through the API.
- 18 to 21 sFrom power-on to an SSH login in an Ubuntu cloud image.
- 88Virtual machines running on one host without reaching a limit.
Lab host with 2 x Intel Xeon E5-2630 v4 and 121 GiB memory, development build, 5 November 2026. Method per figure on the platform page.
Platform components
Kyvernon VMM
Virtual machine monitor with its own device models, UEFI firmware with Secure Boot, virtual TPM, snapshots, change tracking and live migration.
Management
Replicated control plane with inventory, scheduler, high availability, role-based access control and an audit log. Web UI, CLI and native API.
vSphere API compatibility
The SOAP web service, the REST automation API, datastore file access and OVF transfer, published per release in a conformance report.
Migration
Import of OVA and OVF packages exported from vSphere, without the VDDK. Disks, MAC addresses and the guest configuration come along.
Integrations
Native gRPC and REST API, webhooks, Prometheus, OpenTelemetry, syslog and CEF. Integrated with monsys.ai and zekura.eu.
Security
TLS 1.3 throughout, signed immutable host images, multi-factor authentication, signed releases with a software bill of materials.
Availability
Kyvernon is in development. The first release covers a single host managed through the vSphere-compatible and native interfaces. Cluster features, including live migration, high availability and the backup API, follow in the second release. Supported guest operating systems at first release are current Linux distributions and Windows Server with virtio drivers.
Early access programme
For organisations that run vSphere with automation, monitoring or backup tooling and want to evaluate Kyvernon in a test environment.