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CubeFS
CubeFS is a CNCF graduated cloud-native distributed file system supporting POSIX, HDFS, and S3-compatible object storage protocols. It provides multi-tenancy, multi-AZ deployment, cross-region replication, and erasure coding for both hot and cold data tiers, and is widely used to back cloud-native AI training, big-data analytics, and container storage workloads.
CubeFS publishes 11 APIs on the APIs.io network, including ACLs API, Buckets API, Cluster API, and 8 more. Tagged areas include Cloud-Native, CNCF Graduated, Distributed File System, Kubernetes, and Object Storage.
The CubeFS catalog on APIs.io includes 1 JSON-LD context and 3 Spectral governance rulesets.
CubeFS’s developer surface includes authentication, documentation, getting-started guide, changelog, and 17 more developer resources.
2 APIs
On this page
Kin Score
APIs 11
Open Collections 14
Pricing Plans 1
Rate Limits 1
FinOps 1
Vocabularies 1
Spectral Rules 3
JSON Schema 1
Security Posture 2
Agentic Access 1
Resources 21
apis.yml
40 Operational Transparency
0 Create-or-Update Ergonomics
Composite quality — 45.3/100 · developing
Agent readiness — 20/100 · agent aware
Individual APIs this provider publishes, each with its own machine-readable definition.
Scroll for all 11
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Scroll for all 14
Published pricing tiers and plan structures.
Documented rate limits and quota policies.
Cost, billing, and metering signals for API financial operations.
JSON-LD contexts and semantic vocabularies used across these APIs.
Spectral governance rulesets for linting and validating these APIs.
Standalone JSON Schema definitions for this provider's data models.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Recommended x-agentic-access execution contracts for AI agents.
Get Started 1
Portal, sign-up, and the first successful call
Documentation 3
Reference material describing how the API behaves
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 4
Pagination, idempotency, versioning, errors, and events
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 3
Authentication, authorization, and security posture
Operate 3
Status, limits, changes, and where to get help
Commercial 1
Pricing, plans, and the legal terms of use
Company 1
The organization behind the API
Source (apis.yml)
aid: cubefs
url: https://raw.githubusercontent.com/api-evangelist/cubefs/refs/heads/main/apis.yml
kind: opensource
name: CubeFS
description: CubeFS is a CNCF graduated cloud-native distributed file system supporting POSIX, HDFS, and S3-compatible object
storage protocols. It provides multi-tenancy, multi-AZ deployment, cross-region replication, and erasure coding for both
hot and cold data tiers, and is widely used to back cloud-native AI training, big-data analytics, and container storage
workloads.
deliveryModel:
model: self-hosted
license: Apache-2.0
open_source: true
commercial: false
callable_host: false
label: Self-hosted open source · you run it yourself
confidence: high
source:
- license
- openapi
generated: '2026-08-28'
method: derived
accessModel:
pricing: freemium
onboarding: self-serve
trial: false
try_now: true
public: false
label: Freemium · Self-serve signup
confidence: medium
source:
- plans
- authentication
- security
generated: '2026-09-03'
method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/cubefs.png
tags:
- Cloud-Native
- CNCF Graduated
- Distributed File System
- Kubernetes
- Object Storage
- POSIX
- S3 Compatible
- Storage
tags_raw:
- Cloud Native
- CNCF Graduated
- Distributed File System
- Kubernetes
- Object Storage
- POSIX
- S3 Compatible
- Storage
type: Index
specificationVersion: '0.23'
created: '2026-03-16'
modified: '2026-05-19'
apis:
- aid: cubefs:cubefs-acls-api
name: CubeFS ACLs API
description: Access control list operations for buckets and objects. Supports getting and setting ACLs to control access
at the bucket and object level.
humanURL: https://cubefs.io/docs/master/user-guide/objectnode.html
tags:
- ACL
tags_raw:
- ACLs
properties:
- type: OpenAPI
url: openapi/cubefs-acls-api-openapi.yml
- type: Documentation
url: https://cubefs.io/docs/master/user-guide/objectnode.html
- type: GitHubRepository
url: https://github.com/cubefs/cubefs
- type: SpectralRules
url: rules/cubefs-s3-rules.yml
- type: Documentation
url: https://cubefs.io/docs/master/dev-guide/master-api.html
- type: JSONSchema
url: json-schema/cubefs-volume-schema.json
- type: SpectralRules
url: rules/cubefs-master-rules.yml
- aid: cubefs:cubefs-buckets-api
name: CubeFS Buckets API
description: Bucket-level operations including creating, listing, and deleting buckets. In CubeFS, each S3 bucket corresponds
to a CubeFS volume. Bucket names must be unique within the cluster.
humanURL: https://cubefs.io/docs/master/user-guide/objectnode.html
tags:
- Buckets
properties:
- type: OpenAPI
url: openapi/cubefs-buckets-api-openapi.yml
- type: Documentation
url: https://cubefs.io/docs/master/user-guide/objectnode.html
- type: GitHubRepository
url: https://github.com/cubefs/cubefs
- type: SpectralRules
url: rules/cubefs-s3-rules.yml
- type: Documentation
url: https://cubefs.io/docs/master/dev-guide/master-api.html
- type: JSONSchema
url: json-schema/cubefs-volume-schema.json
- type: SpectralRules
url: rules/cubefs-master-rules.yml
- aid: cubefs:cubefs-cluster-api
name: CubeFS Cluster API
description: Cluster-level operations including retrieving cluster status, topology, and freezing/unfreezing the cluster
to control automatic partition creation.
humanURL: https://cubefs.io/docs/master/user-guide/objectnode.html
tags:
- Cluster
properties:
- type: OpenAPI
url: openapi/cubefs-cluster-api-openapi.yml
- type: Documentation
url: https://cubefs.io/docs/master/user-guide/objectnode.html
- type: GitHubRepository
url: https://github.com/cubefs/cubefs
- type: SpectralRules
url: rules/cubefs-s3-rules.yml
- type: Documentation
url: https://cubefs.io/docs/master/dev-guide/master-api.html
- type: JSONSchema
url: json-schema/cubefs-volume-schema.json
- type: SpectralRules
url: rules/cubefs-master-rules.yml
- aid: cubefs:cubefs-datanodes-api
name: CubeFS DataNodes API
description: Data node management operations including listing nodes, querying node status, decommissioning nodes, and managing
data partitions on nodes.
humanURL: https://cubefs.io/docs/master/user-guide/objectnode.html
tags:
- DataNodes
properties:
- type: OpenAPI
url: openapi/cubefs-datanodes-api-openapi.yml
- type: Documentation
url: https://cubefs.io/docs/master/user-guide/objectnode.html
- type: GitHubRepository
url: https://github.com/cubefs/cubefs
- type: SpectralRules
url: rules/cubefs-s3-rules.yml
- type: Documentation
url: https://cubefs.io/docs/master/dev-guide/master-api.html
- type: JSONSchema
url: json-schema/cubefs-volume-schema.json
- type: SpectralRules
url: rules/cubefs-master-rules.yml
- aid: cubefs:cubefs-datapartitions-api
name: CubeFS DataPartitions API
description: Data partition management including creating, loading, decommissioning, and diagnosing data partitions within
volumes.
humanURL: https://cubefs.io/docs/master/user-guide/objectnode.html
tags:
- DataPartitions
properties:
- type: OpenAPI
url: openapi/cubefs-datapartitions-api-openapi.yml
- type: Documentation
url: https://cubefs.io/docs/master/user-guide/objectnode.html
- type: GitHubRepository
url: https://github.com/cubefs/cubefs
- type: SpectralRules
url: rules/cubefs-s3-rules.yml
- type: Documentation
url: https://cubefs.io/docs/master/dev-guide/master-api.html
- type: JSONSchema
url: json-schema/cubefs-volume-schema.json
- type: SpectralRules
url: rules/cubefs-master-rules.yml
- aid: cubefs:cubefs-metanodes-api
name: CubeFS MetaNodes API
description: Metadata node management operations including listing nodes, querying node status, decommissioning nodes, and
managing metadata partitions.
humanURL: https://cubefs.io/docs/master/user-guide/objectnode.html
tags:
- MetaNodes
properties:
- type: OpenAPI
url: openapi/cubefs-metanodes-api-openapi.yml
- type: Documentation
url: https://cubefs.io/docs/master/user-guide/objectnode.html
- type: GitHubRepository
url: https://github.com/cubefs/cubefs
- type: SpectralRules
url: rules/cubefs-s3-rules.yml
- type: Documentation
url: https://cubefs.io/docs/master/dev-guide/master-api.html
- type: JSONSchema
url: json-schema/cubefs-volume-schema.json
- type: SpectralRules
url: rules/cubefs-master-rules.yml
- aid: cubefs:cubefs-metapartitions-api
name: CubeFS MetaPartitions API
description: Metadata partition management including creating, loading, and decommissioning metadata partitions within volumes.
humanURL: https://cubefs.io/docs/master/user-guide/objectnode.html
tags:
- MetaPartitions
properties:
- type: OpenAPI
url: openapi/cubefs-metapartitions-api-openapi.yml
- type: Documentation
url: https://cubefs.io/docs/master/user-guide/objectnode.html
- type: GitHubRepository
url: https://github.com/cubefs/cubefs
- type: SpectralRules
url: rules/cubefs-s3-rules.yml
- type: Documentation
url: https://cubefs.io/docs/master/dev-guide/master-api.html
- type: JSONSchema
url: json-schema/cubefs-volume-schema.json
- type: SpectralRules
url: rules/cubefs-master-rules.yml
- aid: cubefs:cubefs-multipart-api
name: CubeFS Multipart API
description: Multipart upload operations for uploading large objects in parts. Supports initiating, uploading parts, listing
parts, completing, and aborting multipart uploads.
humanURL: https://cubefs.io/docs/master/user-guide/objectnode.html
tags:
- Multipart
properties:
- type: OpenAPI
url: openapi/cubefs-multipart-api-openapi.yml
- type: Documentation
url: https://cubefs.io/docs/master/user-guide/objectnode.html
- type: GitHubRepository
url: https://github.com/cubefs/cubefs
- type: SpectralRules
url: rules/cubefs-s3-rules.yml
- type: Documentation
url: https://cubefs.io/docs/master/dev-guide/master-api.html
- type: JSONSchema
url: json-schema/cubefs-volume-schema.json
- type: SpectralRules
url: rules/cubefs-master-rules.yml
- aid: cubefs:cubefs-objects-api
name: CubeFS Objects API
description: Object CRUD operations including uploading, downloading, copying, listing, and deleting objects. Supports both
standard single-part uploads and multipart uploads for large objects.
humanURL: https://cubefs.io/docs/master/user-guide/objectnode.html
tags:
- Objects
properties:
- type: OpenAPI
url: openapi/cubefs-objects-api-openapi.yml
- type: Documentation
url: https://cubefs.io/docs/master/user-guide/objectnode.html
- type: GitHubRepository
url: https://github.com/cubefs/cubefs
- type: SpectralRules
url: rules/cubefs-s3-rules.yml
- type: Documentation
url: https://cubefs.io/docs/master/dev-guide/master-api.html
- type: JSONSchema
url: json-schema/cubefs-volume-schema.json
- type: SpectralRules
url: rules/cubefs-master-rules.yml
- aid: cubefs:cubefs-users-api
name: CubeFS Users API
description: User and access control management for CubeFS multi-tenancy. Users own volumes and are assigned access keys
and secret keys for S3-compatible object storage operations.
humanURL: https://cubefs.io/docs/master/user-guide/objectnode.html
tags:
- User
tags_raw:
- Users
properties:
- type: OpenAPI
url: openapi/cubefs-users-api-openapi.yml
- type: Documentation
url: https://cubefs.io/docs/master/user-guide/objectnode.html
- type: GitHubRepository
url: https://github.com/cubefs/cubefs
- type: SpectralRules
url: rules/cubefs-s3-rules.yml
- type: Documentation
url: https://cubefs.io/docs/master/dev-guide/master-api.html
- type: JSONSchema
url: json-schema/cubefs-volume-schema.json
- type: SpectralRules
url: rules/cubefs-master-rules.yml
- aid: cubefs:cubefs-volumes-api
name: CubeFS Volumes API
description: Volume lifecycle management operations including creating, updating, expanding, shrinking, and deleting volumes.
Volumes are the top-level storage namespaces in CubeFS.
humanURL: https://cubefs.io/docs/master/user-guide/objectnode.html
tags:
- Volumes
properties:
- type: OpenAPI
url: openapi/cubefs-volumes-api-openapi.yml
- type: Documentation
url: https://cubefs.io/docs/master/user-guide/objectnode.html
- type: GitHubRepository
url: https://github.com/cubefs/cubefs
- type: SpectralRules
url: rules/cubefs-s3-rules.yml
- type: Documentation
url: https://cubefs.io/docs/master/dev-guide/master-api.html
- type: JSONSchema
url: json-schema/cubefs-volume-schema.json
- type: SpectralRules
url: rules/cubefs-master-rules.yml
features:
- name: Multi-Protocol Access
description: Single backend serves POSIX (FUSE), HDFS, and S3-compatible clients.
- name: Multi-Tenancy
description: Tenant isolation by user, access key, and per-volume policies.
- name: Multi-AZ Deployment
description: Replication across availability zones with optional cross-zone partitions.
- name: Erasure Coding
description: Parity-coded storage to reduce overhead for cold data tiers.
- name: Container Storage
description: First-class CSI driver for Kubernetes persistent volumes.
- name: Master Control Plane
description: HTTP master API for volume, node, partition, and user management.
- name: S3-Compatible ObjectNode
description: ObjectNode gateway exposes standard S3 verbs to AWS SDK clients.
- name: CNCF Graduated
description: Project status, governance, and community managed under the CNCF.
useCases:
- name: AI/ML Training Storage
description: Large training datasets stored on CubeFS via POSIX or S3 access.
- name: Big Data Analytics
description: HDFS clients run analytics on CubeFS-backed datasets.
- name: Cloud-Native Object Storage
description: Apps use S3-compatible buckets backed by CubeFS without AWS dependency.
- name: Kubernetes Persistent Volumes
description: CubeFS CSI driver provides RWX persistent volumes to stateful workloads.
- name: Multi-Region Storage
description: Cross-region replication backs disaster recovery and locality strategies.
- name: Hot/Cold Tiering
description: Replicated tier for hot data and erasure-coded tier for cold data.
common:
- type: IssueTracker
url: https://github.com/cubefs/cubefs/issues
- type: Releases
url: https://github.com/cubefs/cubefs/releases
- type: SecurityPolicy
url: https://github.com/cubefs/cubefs/blob/master/SECURITY.md
- type: CodeOfConduct
url: https://github.com/cubefs/cubefs/blob/master/CODE_OF_CONDUCT.md
- type: ContributionGuide
url: https://github.com/cubefs/cubefs/blob/master/CONTRIBUTING.md
- type: License
name: Apache-2.0
url: https://github.com/cubefs/cubefs/blob/master/LICENSE
- type: AgenticAccess
url: agentic-access/cubefs-agentic-access.yml
- type: DomainSecurity
url: security/cubefs-domain-security.yml
- type: Authentication
url: authentication/cubefs-authentication.yml
- type: JSONLD
url: json-ld/cubefs-context.jsonld
name: CubeFS JSON-LD Context
description: Linked-data context mapping CubeFS resources to standard vocabularies.
- type: JSONSchema
url: json-schema/cubefs-volume-schema.json
name: CubeFS Volume JSON Schema
description: JSON Schema for CubeFS volume, partition, node, and user data models.
- type: Vocabulary
url: vocabulary/cubefs-vocabulary.yml
name: CubeFS Vocabulary
- type: SpectralRules
url: rules/cubefs-master-rules.yml
name: CubeFS Master API Spectral Rules
- type: SpectralRules
url: rules/cubefs-s3-rules.yml
name: CubeFS S3 API Spectral Rules
- type: Website
name: CubeFS Website
description: Official CubeFS project website.
url: https://cubefs.io/
- type: Documentation
name: CubeFS Documentation
description: Official documentation for CubeFS.
url: https://cubefs.io/docs/master/overview/introduction.html
- type: GettingStarted
name: CubeFS Quick Start
description: Quick start guide for deploying CubeFS.
url: https://cubefs.io/docs/master/quickstart/single-deploy.html
- type: ChangeLog
name: CubeFS Changelog
description: Version history and changelog for CubeFS releases.
url: https://github.com/cubefs/cubefs/blob/master/CHANGELOG.md
- type: GitHubOrganization
name: CubeFS GitHub Organization
description: GitHub organization hosting all CubeFS source code.
url: https://github.com/cubefs
- type: GitHubRepository
name: CubeFS GitHub Repository
description: Main CubeFS source code repository.
url: https://github.com/cubefs/cubefs
- type: LlmsText
url: https://cubefs.io/llms.txt
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
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