Quarkus

Quarkus is a Kubernetes-native Java framework tailored for GraalVM and OpenJDK HotSpot, designed to build cloud-native microservices and serverless applications with fast startup times and low memory footprint.

Quarkus publishes 5 APIs on the APIs.io network, including Dev UI API, Health API, Info API, and 2 more. Tagged areas include Cloud-Native, Frameworks, GraalVM, Java, and Kubernetes.

The Quarkus catalog on APIs.io includes 1 Spectral governance ruleset.

Quarkus’ developer surface includes documentation, getting-started guide, engineering blog, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

26.4/100 thin ▬ flat Agent 28/100 agent aware Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemium

1 APIs 1 MCP Servers 3 Agent Skills

Cloud-Native FrameworksGraalVMJava Kubernetes Microservices Serverless

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 26.4/100 · thin

Contract Quality 11.7 / 25

Developer Ergonomics 6.2 / 20

Access Clarity 0.0 / 20

Operational Transparency 1.4 / 13

Contract Governance 1.2 / 12

Discoverability 5.9 / 10

Agent readiness — 28/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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/quarkus: 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 5

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

Quarkus Dev UI API

The Dev UI API from Quarkus — 1 operation(s) for dev ui.

Quarkus Health API

The Health API from Quarkus — 4 operation(s) for health.

Quarkus Info API

The Info API from Quarkus — 1 operation(s) for info.

Quarkus Metrics API

The Metrics API from Quarkus — 1 operation(s) for metrics.

Quarkus OpenAPI API

The OpenAPI API from Quarkus — 2 operation(s) for openapi.

Open Collections 7

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

API Collection

OPEN COLLECTION

Quarkus & Health/Metrics Dev UI API

OPEN COLLECTION

Quarkus Dev UI & Health/Metrics API

OPEN COLLECTION

Quarkus & /Metrics Dev UI Health API

OPEN COLLECTION

Quarkus & Health/Metrics Dev UI Info API

OPEN COLLECTION

Quarkus & Health/ Dev UI Metrics API

OPEN COLLECTION

Quarkus & Health/Metrics Dev UI OpenAPI API

OPEN COLLECTION

Scroll for all 7

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

MCP Server

MCP SERVER

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

hello-world

AGENT SKILL

migrate-spring-to-quarkus

AGENT SKILL

quarkus-update

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Quarkus Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Quarkus Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Quarkus Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Quarkus API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 1

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

Quarkus Application Configuration

1 properties

JSON SCHEMA

Security Posture 2

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

Quarkus Domain Security

TLSv1.3 · DMARC

SECURITY

Quarkus Vulnerability Disclosure

disclosure policy published

SECURITY

Agentic Access 1

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

Quarkus Agentic Access

9 operations

9 operations · 0 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

MCPServer

MCPServer

AgentSkills

AgentSkills

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: quarkus
name: Quarkus
description: Quarkus is a Kubernetes-native Java framework tailored for GraalVM and OpenJDK HotSpot, designed to build cloud-native
  microservices and serverless applications with fast startup times and low memory footprint.
type: Index
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/quarkus.png
tags:
- Cloud-Native
- Frameworks
- GraalVM
- Java
- Kubernetes
- Microservices
- Serverless
tags_raw:
- Cloud Native
- Frameworks
- GraalVM
- Java
- Kubernetes
- Microservices
- Serverless
url: https://raw.githubusercontent.com/api-evangelist/quarkus/refs/heads/main/apis.yml
created: '2026-03-26'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: quarkus:quarkus-dev-ui-api
  name: Quarkus Dev UI API
  description: The Dev UI API from Quarkus — 1 operation(s) for dev ui.
  humanURL: https://quarkus.io/
  tags:
  - Dev UI
  properties:
  - type: OpenAPI
    url: openapi/quarkus-dev-ui-api-openapi.yml
  - type: Documentation
    url: https://quarkus.io/guides/
  - type: GettingStarted
    url: https://quarkus.io/get-started/
  - type: JSONSchema
    url: json-schema/quarkus-application-properties.json
- aid: quarkus:quarkus-health-api
  name: Quarkus Health API
  description: The Health API from Quarkus — 4 operation(s) for health.
  humanURL: https://quarkus.io/
  tags:
  - Health
  properties:
  - type: OpenAPI
    url: openapi/quarkus-health-api-openapi.yml
  - type: Documentation
    url: https://quarkus.io/guides/
  - type: GettingStarted
    url: https://quarkus.io/get-started/
  - type: JSONSchema
    url: json-schema/quarkus-application-properties.json
- aid: quarkus:quarkus-info-api
  name: Quarkus Info API
  description: The Info API from Quarkus — 1 operation(s) for info.
  humanURL: https://quarkus.io/
  tags:
  - Info
  properties:
  - type: OpenAPI
    url: openapi/quarkus-info-api-openapi.yml
  - type: Documentation
    url: https://quarkus.io/guides/
  - type: GettingStarted
    url: https://quarkus.io/get-started/
  - type: JSONSchema
    url: json-schema/quarkus-application-properties.json
- aid: quarkus:quarkus-metrics-api
  name: Quarkus Metrics API
  description: The Metrics API from Quarkus — 1 operation(s) for metrics.
  humanURL: https://quarkus.io/
  tags:
  - Metrics
  properties:
  - type: OpenAPI
    url: openapi/quarkus-metrics-api-openapi.yml
  - type: Documentation
    url: https://quarkus.io/guides/
  - type: GettingStarted
    url: https://quarkus.io/get-started/
  - type: JSONSchema
    url: json-schema/quarkus-application-properties.json
- aid: quarkus:quarkus-openapi-api
  name: Quarkus OpenAPI API
  description: The OpenAPI API from Quarkus — 2 operation(s) for openapi.
  humanURL: https://quarkus.io/
  tags:
  - OpenAPI
  properties:
  - type: OpenAPI
    url: openapi/quarkus-openapi-api-openapi.yml
  - type: Documentation
    url: https://quarkus.io/guides/
  - type: GettingStarted
    url: https://quarkus.io/get-started/
  - type: JSONSchema
    url: json-schema/quarkus-application-properties.json
common:
- type: AgenticAccess
  url: agentic-access/quarkus-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/quarkus-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/quarkus-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/quarkusio
- type: Website
  url: https://quarkus.io/
- type: Documentation
  url: https://quarkus.io/guides/
- type: GettingStarted
  url: https://quarkus.io/get-started/
- type: GitHubOrganization
  url: https://github.com/quarkusio
- type: Blog
  url: https://quarkus.io/blog/
- name: MCP Server
  url: https://github.com/quarkusio/quarkus-agent-mcp
  type: MCPServer
- name: Agent Skills
  url: https://github.com/quarkusio/quarkus-skills
  type: AgentSkills
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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