Sovereign graph visibility.
Automated FinOps & drift control.

The unified SaaS control plane for bare-metal fleets, PostgreSQL clusters, Kubernetes workloads, Git pipelines, and multi-cloud accounts. Explore live topological dependencies, verify ISO 21031 carbon intensity, and stage cryptographically signed S.A.U. reversibility right in the browser.

Start Free in Horizon Web ↗ Explore Live Simulator ↓
No credit card required · Read-only access · Prefer terminal? Open-source CLI & TUI included
Universal
any system, database, or cloud
DAG
dependency & blast-radius graph
Horizon
shared browser control plane
CloudSlash Horizon — Live Workspace Telemetry
$3,840/mo
Identified idle waste
$18,420/mo
Active managed spend
428.4 kg
Carbon SCI / yr
● 847 nodes indexed Dinic Min-Cut 0.4ms Open Horizon Workspace →

Questions hide across systems.

Bare-metal servers, databases, Kubernetes clusters, repositories, and cloud accounts hold different pieces of the picture. CloudSlash plugins collect evidence so your team can investigate an opportunity and review its dependencies.

Plugins
Connect supported sources without making one provider the center of the product.
Evidence
Review findings and missing context before deciding what to change.

See everything. Decide with evidence. Execute on your terms.

Local-first discovery, read-only hosted analysis, and signed plans your team runs where it chooses.

01

Scan

Install a plugin, review the exact read access it declares, and connect a system, cluster, database, or repository. Credentials stay with you.

Plugins extend visibility; they cannot request mutation.
02

Analyze

Explore resources, relationships, cost, carbon, and findings in one graph. Missing telemetry is shown as uncertainty, never guessed.

Core computes the verdicts and the evidence trail.
03

Handoff

Compile an Ed25519-signed plan, review every action, then execute it locally or in your own VPC. Revert from the audit ledger.

Execution stays on your infrastructure; hosted analysis is read-only.

Complete context before every infrastructure decision.

Map dependencies, govern policy compliance, and surface optimization opportunities across every system your team operates.

Cross-system dependency graph

Inspect live relationships across databases, compute nodes, CI runners, storage volumes, and services before proposing any change.

pg-replica-02analytics-db · $312/mo
ci-runner-09build-pool · idle 47d
k8s-worker-04prod-cluster · active
nvme-vol-0f5archive-store · 2.3 TB
$1,892
Illustrative estimate
12
Pending review
rds-09a1 Approved
i-0a8f2e Pending
vol-0f3a Approved

Shared review

Review findings and plans together. Estimates stay distinct from realized savings, and your team decides how to approve source-side changes.

History and comparison

Compare supported observations over time and investigate changes in resource state or estimated cost. Available data depends on the source plugin.

Jan
Feb
Mar
Apr
May
Jun

Why Horizon SaaS never deletes resources directly.

We separate observation & planning (Horizon Web) from execution & rollback (DevOps CLI/TUI) so finance or management users can never accidentally break production.

1. Finance & Platform Review (SaaS)

Connect read-only sources or import CLI snapshots into Horizon. Inspect cost evidence, dependency graphs, and select findings to include in a cleanup plan.

2. Signed S.A.U. Plan Handoff

Horizon compiles a cryptographically signed S.A.U. (Sequential Atomic Unwind) plan with topological ordering and rollback preconditions—without touching your live infrastructure.

3. Engineer Executes in CLI / TUI

DevOps and engineers inspect the signed plan in cs tui or run cs remediate --file plan.json using their own credentials, with instant rollback via cs revert.

One universal engine. Built for every surface.

Horizon SaaS gives your organization a shared browser control plane, backed by the open-source CloudSlash Core and terminal engine.

Capability Horizon SaaS (Web Control Plane) CLI & Interactive TUI Core Graph Engine
Universal Plugin Scanning (Linux, Postgres, Git, K8s, SaaS, Cloud) Read-only hosted scans & snapshot imports Local & CI/CD scans + interactive TUI gRPC Protobuf host + Patricia CIDR Trie linker
Optimization & Topology Intelligence Visual topology explorer, multi-month trends & diffs Interactive tree, cost sorting & drift gates 5D Vector Bin-Packing, Conformal Oracle, Dinic Max-Flow
CEL Governance (PolicyMesh) Browser policy authoring & organization rule packs CLI validation & CI/CD SARIF gates O(1) inverted-index CEL evaluator
S.A.U. Remediation & Atomic Rollback Compiles ephemeral signed plans (immutable audit record once executed) Direct execution & rollback (standalone TUI or signed plan handoff) Kahn topological reverse unwind & adjoint state ledger
Interactive Terminal Control

Deterministic terminal power. Fully interactive.

Prefer the command line? Run cs tui on your machine for 100% offline, zero-latency local scans. Test drive the 6 Horizon modes below—press 1-6 to switch, j/k to select, Enter to inspect, or click any row.

Universal Telemetry Ingestion Pipeline · Live Flow
Terraform / IaC Kubernetes / VMs Postgres / SaaS Universal Graph Engine DAG · Dinic · ISO 21031 SCI Horizon 2.3.0
cloudslash horizon 2.3.0 · local-first engine
[1] Resources
42 resources · ● horizon ready · 1-6 tabs · [j/k or ↑/↓] navigate · [Enter] inspect · [/] filter
Open in Horizon SaaS ↗

Simple, transparent workspace pricing.

Early access pricing — locked for the first cohort while Horizon is in launch. The CLI and terminal dashboard are free and open source forever; hosted Horizon workspaces are paid and the free Starter tier is defined exactly below. All paid subscriptions auto-renew on your chosen interval with instant 1-click cancellation anytime.

Starter Workspace

$0 / month

Free forever · No credit card · this is the whole free tier

For individuals and small teams exploring system topology, idle capacity, and governance in the browser.

  • ✓ Shared Horizon web workspace
  • ✓ Up to 3 installed plugins & 1 source connection
  • ✓ 10 scans or snapshot imports / month
  • ✓ Visual dependency graph & waste explorer
  • ✓ Includes open-source CLI & terminal dashboard
Start Free in Horizon

Pro Workspace Early access

$19 / month

Billed monthly · Auto-renews · Cancel anytime

Full visibility, continuous governance, and FinOps reporting for engineering and platform teams.

  • ✓ Unlimited installed plugins across any system
  • ✓ Up to 10 read-only source connections
  • ✓ 100 hosted scans or snapshot imports / month
  • ✓ Multi-month trends, drift detection & chargeback exports
  • ✓ Signed S.A.U. remediation plans

Enterprise & Commercial Early access

$99 / month

Billed monthly · Auto-renews · Cancel anytime

For organizations requiring custom scale, dedicated VPC deployment, or commercial licensing.

  • ✓ Custom source connection & scan volume limits
  • ✓ Private internal plugin & CEL policy registry
  • ✓ Self-hosted Horizon control plane inside your VPC
  • ✓ Commercial license & dedicated support SLA
Talk to sales

You will be asked to create a workspace account before checkout, then returned straight to the plan you picked. Hosted scans and snapshot imports share your workspace monthly allowance. Horizon workspaces operate read-only against connected sources and compile cryptographically signed plans for execution. See our billing and cancellation policy.

Built by engineers. Loved by engineers.

CloudSlash started as a CLI tool. The TUI, the plugin system, the graph algorithms — they're all open-source and free. Install in one command.

$ curl -fsSL cloudslash.dev/install.sh | bash

Bring your sources into view.

Create a workspace, install a supported plugin, connect an authorized source, and review the findings with your team.

Get Started in Horizon →

Good emails. Occasionally.

New source plugins, practical FinOps playbooks, and the quiet wins hiding in your infrastructure. No noise, no daily blasts, and leaving is one click.

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