Axon Framework website screenshot

Axon Framework

Axon Framework is a Java framework for building event-driven microservices using CQRS (Command Query Responsibility Segregation) and event sourcing patterns, providing the building blocks to implement scalable and maintainable distributed systems.

Axon Framework publishes 9 APIs on the APIs.io network, including Applications API, Cluster API, Commands API, and 6 more. Tagged areas include CQRS, Event Sourcing, Event-Driven, Java, and Messaging.

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

Axon Framework’s developer surface includes documentation, getting-started guide, engineering blog, pricing, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub
47.4/100 developing ▼ -10.0 Agent 22/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
9 APIs 8 Features 5 Use Cases
CQRSEvent SourcingEvent-DrivenJavaMessagingMicroservices

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 47.4/100 · developing
Contract Quality 13.8 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 12.1 / 20
Operational Transparency 6.2 / 13
Governance 8.3 / 12
Discoverability 7.4 / 10
Agent readiness — 22/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
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
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/axon-framework: 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 9

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

Axon Framework Applications API

The Applications API from Axon Framework — 1 operation(s) for applications.

Axon Framework Cluster API

The Cluster API from Axon Framework — 2 operation(s) for cluster.

Axon Framework Commands API

The Commands API from Axon Framework — 1 operation(s) for commands.

Axon Framework Contexts API

The Contexts API from Axon Framework — 2 operation(s) for contexts.

Axon Framework Event Processors API

The Event Processors API from Axon Framework — 3 operation(s) for event processors.

Axon Framework Events API

The Events API from Axon Framework — 2 operation(s) for events.

Axon Framework Queries API

The Queries API from Axon Framework — 1 operation(s) for queries.

Axon Framework Snapshots API

The Snapshots API from Axon Framework — 1 operation(s) for snapshots.

Axon Framework Users API

The Users API from Axon Framework — 2 operation(s) for users.

Scroll for all 9

Open Collections 1

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

Axon Server REST API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Axon Framework Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Axon Framework Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Axon Framework Finops

FINOPS

Features 8

Notable capabilities this provider offers.

CQRS Pattern

Separate command and query models for scalable, maintainable architecture.

Event Sourcing

Store application state as a sequence of events for full audit trail and time-travel debugging.

Domain-Driven Design

First-class support for DDD patterns including aggregates, sagas, and bounded contexts.

Axon Server Integration

Zero-configuration event store and message router with Axon Server.

Distributed Systems Support

Built-in routing for commands, events, and queries across distributed services.

Spring Boot Integration

Seamless Spring Boot auto-configuration for rapid application development.

Testing Support

Built-in testing fixtures for validating aggregate behavior without infrastructure.

Saga Management

Manage long-running business processes with durable saga state.

Scroll for all 8

Semantic Vocabularies 1

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

Axon Framework Context

10 classes · 0 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Axon Framework API Rules

5 rules · 3 warnings 2 info

SPECTRAL

Axon Framework API Rules

11 rules · 3 errors 6 warnings 2 info

SPECTRAL

JSON Schema 10

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

Application

4 properties

JSON SCHEMA

ClusterNode

7 properties

JSON SCHEMA

CommandHandler

3 properties

JSON SCHEMA

Context

3 properties

JSON SCHEMA

CreateContextRequest

3 properties

JSON SCHEMA

CreateUserRequest

3 properties

JSON SCHEMA

Event

9 properties

JSON SCHEMA

EventProcessor

9 properties

JSON SCHEMA

QueryHandler

4 properties

JSON SCHEMA

User

2 properties

JSON SCHEMA

Scroll for all 10

JSON Structure 10

JSON Structure definitions describing this provider's data shapes.

Axon Application Structure

0 properties

JSON STRUCTURE

Axon Clusternode Structure

0 properties

JSON STRUCTURE

Axon Commandhandler Structure

0 properties

JSON STRUCTURE

Axon Context Structure

0 properties

JSON STRUCTURE

Axon Createcontextrequest Structure

0 properties

JSON STRUCTURE

Axon Createuserrequest Structure

0 properties

JSON STRUCTURE

Axon Event Structure

0 properties

JSON STRUCTURE

Axon Eventprocessor Structure

0 properties

JSON STRUCTURE

Axon Queryhandler Structure

0 properties

JSON STRUCTURE

Axon User Structure

0 properties

JSON STRUCTURE

Scroll for all 10

Examples 10

Example request and response payloads for these APIs.

Axon Application Example

3 fields

EXAMPLE

Axon Clusternode Example

3 fields

EXAMPLE

Axon Commandhandler Example

3 fields

EXAMPLE

Axon Context Example

3 fields

EXAMPLE

Axon Createcontextrequest Example

3 fields

EXAMPLE

Axon Createuserrequest Example

3 fields

EXAMPLE

Axon Event Example

3 fields

EXAMPLE

Axon Eventprocessor Example

3 fields

EXAMPLE

Axon Queryhandler Example

3 fields

EXAMPLE

Axon User Example

3 fields

EXAMPLE

Scroll for all 10

Security Posture 1

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

Axon Framework Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Axon Framework Agentic Access

20 operations · 9 acting

20 operations · 9 acting

AGENTIC

Use Cases 5

What developers build with this provider.

Microservices Architecture

Build event-driven microservices with reliable message routing.

Audit Trail

Maintain complete audit trails by storing all state changes as events.

Temporal Queries

Reconstruct system state at any point in time from the event store.

Collaborative Domains

Build complex collaborative domains with CQRS separation.

Workflow Automation

Automate multi-step business workflows with event-driven sagas.

Integrations 5

Pre-built integrations with other platforms and tools.

Spring Boot

Auto-configuration and starter dependency for Spring Boot integration.

Apache Kafka

Route events through Kafka as an alternative to Axon Server.

RabbitMQ

Route commands and events through AMQP with RabbitMQ extension.

JPA/Hibernate

Persist saga state and event-sourced entities with JPA.

Micrometer

Expose framework metrics via Micrometer for Prometheus and Grafana.

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 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

SpectralRules
SpectralRules
 Vocabulary
Vocabulary

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubRepository
GitHubRepository

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

StatusPage
StatusPage

Commercial 2

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: axon-framework
name: Axon Framework
description: Axon Framework is a Java framework for building event-driven microservices using CQRS (Command Query Responsibility
  Segregation) and event sourcing patterns, providing the building blocks to implement scalable and maintainable distributed
  systems.
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/axon-framework.png
tags:
- CQRS
- Event Sourcing
- Event-Driven
- Java
- Messaging
- Microservices
url: https://raw.githubusercontent.com/api-evangelist/axon-framework/refs/heads/main/apis.yml
created: '2026-03-26'
modified: '2026-04-19'
specificationVersion: '0.19'
apis:
- aid: axon-framework:axon-framework-applications-api
  name: Axon Framework Applications API
  description: The Applications API from Axon Framework — 1 operation(s) for applications.
  humanURL: https://www.axoniq.io/products/axon-framework
  baseURL: https://axonserver:8024
  tags:
  - Applications
  properties:
  - type: OpenAPI
    url: openapi/axon-framework-applications-api-openapi.yml
  - type: APIReference
    url: https://docs.axoniq.io/axon-server/administration/axon-server-api
- aid: axon-framework:axon-framework-cluster-api
  name: Axon Framework Cluster API
  description: The Cluster API from Axon Framework — 2 operation(s) for cluster.
  humanURL: https://www.axoniq.io/products/axon-framework
  baseURL: https://axonserver:8024
  tags:
  - Cluster
  properties:
  - type: OpenAPI
    url: openapi/axon-framework-cluster-api-openapi.yml
  - type: APIReference
    url: https://docs.axoniq.io/axon-server/administration/axon-server-api
- aid: axon-framework:axon-framework-commands-api
  name: Axon Framework Commands API
  description: The Commands API from Axon Framework — 1 operation(s) for commands.
  humanURL: https://www.axoniq.io/products/axon-framework
  baseURL: https://axonserver:8024
  tags:
  - Commands
  properties:
  - type: OpenAPI
    url: openapi/axon-framework-commands-api-openapi.yml
  - type: APIReference
    url: https://docs.axoniq.io/axon-server/administration/axon-server-api
- aid: axon-framework:axon-framework-contexts-api
  name: Axon Framework Contexts API
  description: The Contexts API from Axon Framework — 2 operation(s) for contexts.
  humanURL: https://www.axoniq.io/products/axon-framework
  baseURL: https://axonserver:8024
  tags:
  - Contexts
  properties:
  - type: OpenAPI
    url: openapi/axon-framework-contexts-api-openapi.yml
  - type: APIReference
    url: https://docs.axoniq.io/axon-server/administration/axon-server-api
- aid: axon-framework:axon-framework-event-processors-api
  name: Axon Framework Event Processors API
  description: The Event Processors API from Axon Framework — 3 operation(s) for event processors.
  humanURL: https://www.axoniq.io/products/axon-framework
  baseURL: https://axonserver:8024
  tags:
  - Event Processors
  properties:
  - type: OpenAPI
    url: openapi/axon-framework-event-processors-api-openapi.yml
  - type: APIReference
    url: https://docs.axoniq.io/axon-server/administration/axon-server-api
- aid: axon-framework:axon-framework-events-api
  name: Axon Framework Events API
  description: The Events API from Axon Framework — 2 operation(s) for events.
  humanURL: https://www.axoniq.io/products/axon-framework
  baseURL: https://axonserver:8024
  tags:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/axon-framework-events-api-openapi.yml
  - type: APIReference
    url: https://docs.axoniq.io/axon-server/administration/axon-server-api
- aid: axon-framework:axon-framework-queries-api
  name: Axon Framework Queries API
  description: The Queries API from Axon Framework — 1 operation(s) for queries.
  humanURL: https://www.axoniq.io/products/axon-framework
  baseURL: https://axonserver:8024
  tags:
  - Queries
  properties:
  - type: OpenAPI
    url: openapi/axon-framework-queries-api-openapi.yml
  - type: APIReference
    url: https://docs.axoniq.io/axon-server/administration/axon-server-api
- aid: axon-framework:axon-framework-snapshots-api
  name: Axon Framework Snapshots API
  description: The Snapshots API from Axon Framework — 1 operation(s) for snapshots.
  humanURL: https://www.axoniq.io/products/axon-framework
  baseURL: https://axonserver:8024
  tags:
  - Snapshots
  properties:
  - type: OpenAPI
    url: openapi/axon-framework-snapshots-api-openapi.yml
  - type: APIReference
    url: https://docs.axoniq.io/axon-server/administration/axon-server-api
- aid: axon-framework:axon-framework-users-api
  name: Axon Framework Users API
  description: The Users API from Axon Framework — 2 operation(s) for users.
  humanURL: https://www.axoniq.io/products/axon-framework
  baseURL: https://axonserver:8024
  tags:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/axon-framework-users-api-openapi.yml
  - type: APIReference
    url: https://docs.axoniq.io/axon-server/administration/axon-server-api
common:
- type: AgenticAccess
  url: agentic-access/axon-framework-agentic-access.yml
- type: DomainSecurity
  url: security/axon-framework-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/axoniq
- type: Website
  url: https://www.axoniq.io/
- type: Documentation
  url: https://docs.axoniq.io/
- type: GettingStarted
  url: https://docs.axoniq.io/axon-framework/getting-started
- type: GitHubRepository
  url: https://github.com/AxonFramework/AxonFramework
- type: Blog
  url: https://www.axoniq.io/blog
- type: Pricing
  url: https://www.axoniq.io/pricing
- type: TermsOfService
  url: https://www.axoniq.io/terms-and-conditions
- type: StatusPage
  url: https://status.axoniq.io/
- type: SpectralRules
  url: rules/axon-framework-spectral-rules.yml
- type: Vocabulary
  url: vocabulary/axon-framework-vocabulary.yaml
- type: Features
  data:
  - name: CQRS Pattern
    description: Separate command and query models for scalable, maintainable architecture.
  - name: Event Sourcing
    description: Store application state as a sequence of events for full audit trail and time-travel debugging.
  - name: Domain-Driven Design
    description: First-class support for DDD patterns including aggregates, sagas, and bounded contexts.
  - name: Axon Server Integration
    description: Zero-configuration event store and message router with Axon Server.
  - name: Distributed Systems Support
    description: Built-in routing for commands, events, and queries across distributed services.
  - name: Spring Boot Integration
    description: Seamless Spring Boot auto-configuration for rapid application development.
  - name: Testing Support
    description: Built-in testing fixtures for validating aggregate behavior without infrastructure.
  - name: Saga Management
    description: Manage long-running business processes with durable saga state.
- type: UseCases
  data:
  - name: Microservices Architecture
    description: Build event-driven microservices with reliable message routing.
  - name: Audit Trail
    description: Maintain complete audit trails by storing all state changes as events.
  - name: Temporal Queries
    description: Reconstruct system state at any point in time from the event store.
  - name: Collaborative Domains
    description: Build complex collaborative domains with CQRS separation.
  - name: Workflow Automation
    description: Automate multi-step business workflows with event-driven sagas.
- type: Integrations
  data:
  - name: Spring Boot
    description: Auto-configuration and starter dependency for Spring Boot integration.
  - name: Apache Kafka
    description: Route events through Kafka as an alternative to Axon Server.
  - name: RabbitMQ
    description: Route commands and events through AMQP with RabbitMQ extension.
  - name: JPA/Hibernate
    description: Persist saga state and event-sourced entities with JPA.
  - name: Micrometer
    description: Expose framework metrics via Micrometer for Prometheus and Grafana.
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com