Volcano website screenshot

Volcano

Volcano is a CNCF incubating batch processing and high-performance computing (HPC) scheduler for Kubernetes. It provides advanced scheduling capabilities including gang scheduling, fair-share scheduling, queue management, and job lifecycle management for batch workloads such as machine learning training, big data processing, and scientific computing. Volcano extends Kubernetes with three CRDs: Job (vcjob), Queue, and PodGroup.

Volcano publishes 3 APIs on the APIs.io network: Jobs API, PodGroups API, and Queues API. Tagged areas include Batch Processing, Cloud-Native, HPC, Incubating, and Kubernetes.

The Volcano catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Volcano’s developer surface includes documentation, getting-started guide, engineering blog, and 18 more developer resources.

🌐 Visit website 📡 Source on GitHub
45.2/100 developing ▬ flat Agent 17/100 agent aware self hosted · Apache-2.0 Full breakdown ↓
scored 2026-09-14 · rubric v0.22.0
AccessFree
3 APIs
Batch ProcessingCloud-NativeHPCIncubatingKubernetesSchedulingMachine-Learning

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-14 · rubric v0.22.0
Composite quality — 45.2/100 · developing
Contract Quality 12.4 / 20
Developer Ergonomics 5.3 / 16
Access Clarity 2.1 / 16
Operational Transparency 3.6 / 10
Contract Governance 2.8 / 10
Discoverability 5.8 / 8
Open Source Surface 10.0 / 10
Create-or-Update Ergonomics 0.0 / 10
Agent readiness — 17/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 0 / 6
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 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Delegated User Identity 0 / 6
Protected Resource Metadata 0 / 5
Registration Without a Human 0 / 6
Agentic Commerce Well-Known Document 0 / 5
Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against it.
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.
The six quality facets above are damped to 80 points between them, because the conditional facet above carries the other 20. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 80% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/volcano: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 3

Individual APIs this provider publishes, each with its own machine-readable definition.

Volcano Jobs API

Operations for managing Volcano Job (vcjob) custom resources. A Volcano Job defines a batch workload with one or more task groups, lifecycle policies, and scheduling requirements.

Volcano PodGroups API

Operations for managing Volcano PodGroup custom resources. PodGroups define gang scheduling units with minimum availability requirements and queue assignment.

Volcano Queues API

Operations for managing Volcano Queue cluster-scoped custom resources. Queues define scheduling namespaces with weight-based fair sharing, resource capacity, and state managemen...

Open Collections 7

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

Volcano Job API

OPEN COLLECTION

Volcano Job Jobs API

OPEN COLLECTION

Volcano PodGroup API

OPEN COLLECTION

Volcano Job Jobs PodGroups API

OPEN COLLECTION

Volcano Queue API

OPEN COLLECTION

Volcano Job Jobs Queues API

OPEN COLLECTION

Scroll for all 7

Pricing Plans 1

Published pricing tiers and plan structures.

Volcano Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Volcano Rate Limits

2 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Volcano Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Volcano Context

0 classes · 7 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Volcano API Rules

6 rules · 4 warnings 2 info

SPECTRAL

Volcano API Rules

7 rules · 1 errors 4 warnings 2 info

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

Volcano Job

5 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Volcano Job Structure

0 properties

JSON STRUCTURE

Examples 3

Example request and response payloads for these APIs.

Volcano Createnamespacedjob Example

2 fields

EXAMPLE

Volcano Createnamespacedpodgroup Example

2 fields

EXAMPLE

Volcano Listqueues Example

2 fields

EXAMPLE

Security Posture 1

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

Volcano Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Volcano Agentic Access

20 operations · 12 acting

20 operations · 12 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted

Documentation 3

Reference material describing how the API behaves

ContributionGuide
ContributionGuide
 JSONSchema
JSONSchema
 Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

JSONLD
JSONLD
 JSONStructure
JSONStructure
 Vocabulary
Vocabulary
 SpectralRules
SpectralRules

Build 3

SDKs, sample code, and the tooling you integrate with

CodeOfConduct
CodeOfConduct
 GitHubOrganization
GitHubOrganization
 GitHubRepository
GitHubRepository

Access & Security 2

Authentication, authorization, and security posture

SecurityPolicy
SecurityPolicy
 DomainSecurity
DomainSecurity

Operate 3

Status, limits, changes, and where to get help

IssueTracker
IssueTracker
 Releases
Releases
 Community
Community

Commercial 1

Pricing, plans, and the legal terms of use

License
License

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: volcano
name: Volcano
description: 'Volcano is a CNCF incubating batch processing and high-performance computing (HPC) scheduler for Kubernetes.
  It provides advanced scheduling capabilities including gang scheduling, fair-share scheduling, queue management, and job
  lifecycle management for batch workloads such as machine learning training, big data processing, and scientific computing.
  Volcano extends Kubernetes with three CRDs: Job (vcjob), Queue, and PodGroup.'
url: https://volcano.sh
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: free
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Free
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/volcano.png
tags:
- Batch Processing
- Cloud-Native
- HPC
- Incubating
- Kubernetes
- Scheduling
- Machine-Learning
tags_raw:
- Batch Processing
- Cloud Native
- HPC
- Incubating
- Kubernetes
- Scheduling
- Machine Learning
created: '2026-03-16'
modified: '2026-05-19'
specificationVersion: '0.23'
type: Index
apis:
- aid: volcano:volcano-jobs-api
  name: Volcano Jobs API
  description: Operations for managing Volcano Job (vcjob) custom resources. A Volcano Job defines a batch workload with one
    or more task groups, lifecycle policies, and scheduling requirements.
  humanURL: https://volcano.sh/en/docs/
  tags:
  - Job
  tags_raw:
  - Jobs
  properties:
  - type: OpenAPI
    url: openapi/volcano-jobs-api-openapi.yml
  - type: Documentation
    url: https://volcano.sh/en/docs/
  - type: Reference
    url: https://volcano.sh/en/docs/vcjob/
  - type: GettingStarted
    url: https://volcano.sh/en/docs/installation/
  - type: JSONSchema
    url: json-schema/volcano-job-schema.json
  - type: Documentation
    url: https://volcano.sh/en/docs/v1-10-0/queue/
  - type: Documentation
    url: https://volcano.sh/en/docs/podgroup/
- aid: volcano:volcano-podgroups-api
  name: Volcano PodGroups API
  description: Operations for managing Volcano PodGroup custom resources. PodGroups define gang scheduling units with minimum
    availability requirements and queue assignment.
  humanURL: https://volcano.sh/en/docs/
  tags:
  - PodGroups
  properties:
  - type: OpenAPI
    url: openapi/volcano-podgroups-api-openapi.yml
  - type: Documentation
    url: https://volcano.sh/en/docs/
  - type: Reference
    url: https://volcano.sh/en/docs/vcjob/
  - type: GettingStarted
    url: https://volcano.sh/en/docs/installation/
  - type: JSONSchema
    url: json-schema/volcano-job-schema.json
  - type: Documentation
    url: https://volcano.sh/en/docs/v1-10-0/queue/
  - type: Documentation
    url: https://volcano.sh/en/docs/podgroup/
- aid: volcano:volcano-queues-api
  name: Volcano Queues API
  description: Operations for managing Volcano Queue cluster-scoped custom resources. Queues define scheduling namespaces
    with weight-based fair sharing, resource capacity, and state management for batch workloads.
  humanURL: https://volcano.sh/en/docs/
  tags:
  - Queues
  properties:
  - type: OpenAPI
    url: openapi/volcano-queues-api-openapi.yml
  - type: Documentation
    url: https://volcano.sh/en/docs/
  - type: Reference
    url: https://volcano.sh/en/docs/vcjob/
  - type: GettingStarted
    url: https://volcano.sh/en/docs/installation/
  - type: JSONSchema
    url: json-schema/volcano-job-schema.json
  - type: Documentation
    url: https://volcano.sh/en/docs/v1-10-0/queue/
  - type: Documentation
    url: https://volcano.sh/en/docs/podgroup/
common:
- type: IssueTracker
  url: https://github.com/volcano-sh/volcano/issues
- type: Releases
  url: https://github.com/volcano-sh/volcano/releases
- type: SecurityPolicy
  url: https://github.com/volcano-sh/volcano/blob/master/SECURITY-INSIGHTS.yml
- type: CodeOfConduct
  url: https://github.com/volcano-sh/volcano/blob/master/code_of_conduct.md
- type: ContributionGuide
  url: https://github.com/volcano-sh/volcano/blob/master/contributing.md
- type: License
  name: Apache-2.0
  url: https://github.com/volcano-sh/volcano/blob/master/LICENSE
- type: AgenticAccess
  url: agentic-access/volcano-agentic-access.yml
- type: DomainSecurity
  url: security/volcano-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/philips-volcano
- type: Website
  url: https://volcano.sh/en/
- type: JSONLD
  url: json-ld/volcano-context.jsonld
- type: JSONSchema
  url: json-schema/volcano-job-schema.json
- type: JSONStructure
  url: json-structure/volcano-job-structure.json
- type: Vocabulary
  url: vocabulary/volcano-vocabulary.yml
- type: SpectralRules
  url: rules/volcano-rules.yml
- type: Documentation
  url: https://volcano.sh/en/docs/
- type: GettingStarted
  url: https://volcano.sh/en/docs/installation/
- type: Blog
  url: https://volcano.sh/en/blog/
- type: GitHubOrganization
  url: https://github.com/volcano-sh
- type: GitHubRepository
  url: https://github.com/volcano-sh/volcano
- type: Community
  url: https://github.com/volcano-sh/community
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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