# Longhorn

**Canonical:** https://apis.io/providers/longhorn/  
**Website:** https://longhorn.io/  
**APIs profiled:** 9

Longhorn is a CNCF incubating lightweight, reliable, and easy-to-use distributed block storage system for Kubernetes. It creates a dedicated storage controller for each volume and replicates data across multiple nodes for high availability. Longhorn supports snapshots, backups to S3-compatible storage, disaster recovery, and recurring backup schedules.

## Kin Score — 41.8 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 41.8).

| Facet | Score |
|---|---|
| Discoverability | 72.2 |
| Contract Quality | 67.9 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 39.5 |
| Developer Ergonomics | 40.5 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 29.1 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (9)

- **Longhorn BackingImages API** — Backing image management for volumes that use pre-populated disk images as their base data. Backing images are immutable and can be shared across multiple volumes in the same na...
- **Longhorn Backups API** — Backup operations for storing volume snapshots to external storage targets such as S3-compatible storage or NFS. Backups can be restored to new volumes for disaster recovery.
- **Longhorn EngineImages API** — Engine image management for the Longhorn storage engine. Engine images are OCI images containing the Longhorn engine binary and are used to upgrade or manage storage engine vers...
- **Longhorn Nodes API** — Node management for the Longhorn storage cluster including listing nodes, updating disk configurations, enabling or disabling scheduling, and managing node tags for workload pla...
- **Longhorn RecurringJobs API** — Recurring job management for scheduling automated snapshot and backup operations on a cron-based schedule. Recurring jobs can be applied to individual volumes or all volumes via...
- **Longhorn Settings API** — System-wide Longhorn settings management including backup targets, replica counts, node scheduling policies, data locality settings, and storage over-provisioning configuration.
- **Longhorn Snapshots API** — Snapshot operations for volumes including creating, listing, deleting, reverting to, and purging snapshots. Snapshots capture the state of a volume at a point in time and can be...
- **Longhorn SystemBackups API** — System-level backup and restore operations for the entire Longhorn configuration including all volumes, settings, and resource definitions.
- **Longhorn Volumes API** — Volume lifecycle management including creating, attaching, detaching, expanding, and deleting volumes. Also includes volume actions such as activating, canceling expansion, and ...

## Agentic access (1)

- **Longhorn Agentic Access** — 34 operations · 18 acting

## Security (2)

- **Longhorn Authentication** — http · 1 scheme
- **Longhorn Domain Security** — TLSv1.3 · HSTS

## Plans (1)

- **Longhorn Plans Pricing**

## Tags

Backup, Block Storage, Cloud-Native, Incubating, Kubernetes, PersistentVolumes

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/longhorn/). Scores are computed from the provider's own public artifacts under a published rubric.