SinonKeystone

Spec sheet

Purpose

SinonKeystone is a self-hosted update management platform that mirrors vendor update catalogues, controls patch approvals and deployments, and produces compliance evidence.Read 11 Oct 2026 · sinon.eu

API

The technical specifications list 9 API route modules, 47 paths and 55 endpoints.Read 11 Oct 2026 · sinon.eu

Security

The platform verifies repository metadata and payload digests, checks payloads again on endpoints, and quarantines mismatches.Read 11 Oct 2026 · sinon.eu

Headquarters

United KingdomRead 28 Sep 2026 · sinon.eu

Founded

2012Read 28 Sep 2026 · sinon.eu

Air-gap support

In air-gapped mode, outbound fetching is refused and content is provided in signed bundles whose signatures are verified before unpacking.Read 11 Oct 2026 · sinon.eu

Audit evidence

Approvals, deployments, revocations and integrity rejections are recorded in a hash-linked audit chain, with exportable evidence bundles and dated compliance snapshots.Read 11 Oct 2026 · sinon.eu

Availability and support

SinonKeystone is in closed beta, and the maker invites organisations to request access for an estate coverage assessment and product walkthrough.Read 11 Oct 2026 · sinon.eu

Change control

Approvals are recorded per update and deployment ring, with quorum, separation of duties, staged promotion gates and automatic rollout halts.Read 11 Oct 2026 · sinon.eu

Compliance mapping

The product maps to CIS Controls v8.1, NIST SP 800-53 r5, EU NIS2, SOC 2 and NCSC CAF v3.2; the page says 63 of 70 controls are bound to 14 automated checks.Read 11 Oct 2026 · sinon.eu

Deployment options

It can be deployed on bare metal, with Docker Compose, on Kubernetes via Helm, or fully air-gapped from a signed bundle.Read 11 Oct 2026 · sinon.eu

Limits

SinonKeystone does not replace vulnerability scanning; missing-patch state is derived from reported inventory, and hosts that are not enrolled are excluded from compliance measurements.Read 11 Oct 2026 · sinon.eu

Operating systems

It supports Windows, Linux and macOS through one server and one agent.Read 11 Oct 2026 · sinon.eu

Pricing

The pricing page lists SinonKeystone at £3,000 for SME and £16,000 for Enterprise per year, excluding VAT; prices are annual list prices and pounds sterling is the contracting currency.Read 11 Oct 2026 · sinon.eu

Scheduling

Maintenance windows support tenant-local time, change blackouts, cut-offs that prevent installs running past a window, and per-window reboot permissions.Read 11 Oct 2026 · sinon.eu

Technical requirements

The page lists PostgreSQL 16 and Redis 7, and a single Go agent distributed as MSI, DEB, RPM, PKG or tar.gz packages.Read 11 Oct 2026 · sinon.eu

Upstream sources

It mirrors Microsoft Update, APT, YUM/DNF and Apple Software Update catalogues into a local content store.Read 11 Oct 2026 · sinon.eu

Plans and prices

Every SinonKeystone plan and price →

Where Specifiction places it

• Patch Management Software#34 of 497.3