Kerys

Kerys Software is a European (Palaiseau, France) cybersecurity company behind YS::Desktop, a Type 1 hypervisor that runs multiple fully isolated environments on a single workstation. By preallocating dedicated CPU cores to the hypervisor versus VM workloads and adding hypervisor-level encryption, YS::Desktop closes VM escape and cross-VM attack vectors while sustaining roughly 92% native performance. It replaces dedicated admin machines, air-gapped OT laptops, and traditional VDI for regulated organizations in aerospace and defense, energy, finance, construction, and the public sector, with a mandatory Security Domain model (no unmanaged VMs) administered through the YAC console. The company positions around NIS2, IEC 62443, and ANSSI multi-environment workstation guidance and sells 100% through resellers. Kerys does not publish a public developer API, developer portal, SDKs, or pricing; it was surfaced as a Seedcamp portfolio company and enriched here from its public site.

Kerys is profiled on the APIs.io network. Tagged areas include Company, Cybersecurity, Virtualization, Type 1 Hypervisor, and Endpoint Security.

Kerys’ developer surface includes engineering blog, support, YouTube channel, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub
12.3/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-23 · rubric v0.5
0 APIs
CompanyCybersecurityVirtualizationType 1 HypervisorEndpoint SecuritySecure WorkstationOT SecurityComplianceFrance

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-23 · rubric v0.5
Composite quality — 12.3/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 4.2 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 6.8 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/kerys: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Kerys Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Learn 1

Tutorials, courses, talks, and written guidance

YouTube
YouTube

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 3

The organization behind the API

Website
Website
 Blog
Blog
 LinkedIn
LinkedIn

Source (apis.yml)

apis.yml Raw ↑ 
aid: kerys
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/kerys.png
name: Kerys
description: Kerys Software is a European (Palaiseau, France) cybersecurity company behind YS::Desktop, a Type 1 hypervisor
  that runs multiple fully isolated environments on a single workstation. By preallocating dedicated CPU cores to the hypervisor
  versus VM workloads and adding hypervisor-level encryption, YS::Desktop closes VM escape and cross-VM attack vectors while
  sustaining roughly 92% native performance. It replaces dedicated admin machines, air-gapped OT laptops, and traditional
  VDI for regulated organizations in aerospace and defense, energy, finance, construction, and the public sector, with a mandatory
  Security Domain model (no unmanaged VMs) administered through the YAC console. The company positions around NIS2, IEC 62443,
  and ANSSI multi-environment workstation guidance and sells 100% through resellers. Kerys does not publish a public developer
  API, developer portal, SDKs, or pricing; it was surfaced as a Seedcamp portfolio company and enriched here from its public
  site.
url: https://raw.githubusercontent.com/api-evangelist/kerys/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- seedcamp
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- Company
- Cybersecurity
- Virtualization
- Type 1 Hypervisor
- Endpoint Security
- Secure Workstation
- OT Security
- Compliance
- France
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.kerys.software/
- type: Blog
  url: https://www.kerys.software/blog
- type: Support
  url: https://www.kerys.software/contact
- type: TermsOfService
  url: https://www.kerys.software/terms-of-use
- type: PrivacyPolicy
  url: https://www.kerys.software/policy
- type: LinkedIn
  url: https://www.linkedin.com/company/kerys-software
- type: YouTube
  url: https://www.youtube.com/@KERYSSoftware
- type: LLMsTxt
  url: llms/kerys-llms.txt
- type: DomainSecurity
  url: security/kerys-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence