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 API contracts indexed 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 23 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

42.7/100 developing ▬ flat Agent 20/100 agent aware Front door AI 6/6 dominant Heartbeat 92/100 alive self hosted · Apache-2.0 Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFree

3 published contracts

Batch Processing Cloud-Native HPC Incubating Kubernetes Scheduling Machine Learning

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 42.7/100 · developing

Contract Quality 9.2 / 16

Developer Ergonomics 4.6 / 13

Access Clarity 1.4 / 13

Operational Transparency 2.8 / 8

Contract Governance 2.1 / 8

Discoverability 4.5 / 7

Regulatory Posture 1.5 / 15

Open Source Surface 10.0 / 10

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 20/100 · 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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 65 points between them, because both conditional facets apply and carry 35 points together. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 65% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →

10 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Access Clarity scores 10.6 — up to +17.9 composite points Ask about this →
Developer Ergonomics scores 35.7 — up to +12.9 composite points Ask about this →
Contract Quality scores 56.4 — up to +10.9 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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 the provider profile at artifacts.apis.io/volcano/apis.yml: open an issue on github.com/api-evangelist/volcano to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
OpenSSF Best Practices Badge Holders	standard	50.5	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

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 6

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

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

Volcano API pricing

Not yet checked against Volcano's own pricing page. Compiled by API Evangelist on 2026-05-05 from volcano.sh; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Open Source (Apache 2.0) freemium	Free

Plan details, limits and sources →

Rate limits

Kubernetes API Server (cluster-side): see kube-apiserver --max-requests-inflight / --max-mutating-requests-inflight varies
Volcano Queue Capacity: see Queue CRD spec.capability varies

Compiled by API Evangelist, not yet checked against Volcano's documentation. Rate-limit details →

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

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

Volcano

2 quoted statements, read from Volcano's own page on 2026-11-10.

TERMS

Data License 1

How its data and outputs may be reused, quoted from its own terms.

Volcano

2 quoted statements, read from Volcano's own page on 2026-11-10.

LICENSE

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. Counts are the severity each rule declares, not results of running them.

Volcano — jsonschema rules

6 rules · 4 warn-severity 2 info-severity

SPECTRAL

Volcano API Rules

7 rules · 1 error-severity 4 warn-severity 2 info-severity

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 (API Evangelist recommendations) 1

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

Volcano Agentic Access

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

JSONStructure

Vocabulary

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 4

Status, limits, changes, and where to get help

RateLimits

IssueTracker

Releases

Community

Commercial 5

Pricing, plans, and the legal terms of use

Plans

FinOps

License

UsageTerms

DataLicense

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

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: low
  source:
  - plans
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/volcano.png
x-docs-platform: docusaurus
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-17
tags:
- Batch Processing
- Cloud-Native
- HPC
- Incubating
- Kubernetes
- Scheduling
- Machine Learning
tags_raw:
- Batch Processing
- Cloud Native
- HPC
- Incubating
- Kubernetes
- Scheduling
- Machine Learning
- 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: Plans
  url: plans/volcano-plans-pricing.yml
- type: RateLimits
  url: rate-limits/volcano-rate-limits.yml
- type: FinOps
  url: finops/volcano-finops.yml
- 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
- type: UsageTerms
  url: terms/volcano-terms-of-service.yml
- type: DataLicense
  url: data-license/volcano-data-license.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Volcano API — frequently asked questions

Does Volcano have an API?

Yes. APIs.io lists 3 APIs from Volcano, including Volcano Jobs API, Volcano PodGroups API and Volcano Queues API.

Is there an OpenAPI specification for the Volcano API?

Yes. APIs.io indexes 3 OpenAPI specifications for Volcano, each linked for download from this page.

How much does the Volcano API cost?

APIs.io lists 1 pricing plan for Volcano, with each plan's price, limits and inclusions under Pricing on this page.

Is the Volcano API ready for AI agents?

Volcano has a Kin Score of 42.7 out of 100 (developing) and an Agent Readiness score of 20.0 (agent-aware), scored by API Evangelist on 2026-11-13.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

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Tools for providers

9 MCP tools reach this

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get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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