Quarkus website screenshot

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
44.5/100 developing ▬ flat Agent 37/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
5 APIs 1 MCP Servers 3 Agent Skills
Cloud NativeFrameworksGraalVMJavaKubernetesMicroservicesServerless

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 44.5/100 · developing
Contract Quality 12.3 / 25
Developer Ergonomics 6.1 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 7.0 / 12
Discoverability 6.5 / 10
Agent readiness — 37/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 12 / 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 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. 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. Want it done for you? Prioritized profiling — $2,500 →

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 1

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

Quarkus Dev UI & Health/Metrics API

OPEN COLLECTION

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
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
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
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
url: https://raw.githubusercontent.com/api-evangelist/quarkus/refs/heads/main/apis.yml
created: '2026-03-26'
modified: '2026-05-19'
specificationVersion: '0.19'
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