Open Liberty website screenshot

Open Liberty

Open Liberty is a lightweight, open source Java application server from IBM for building cloud-native microservices and applications with full support for Jakarta EE and MicroProfile.

Open Liberty publishes 3 APIs on the APIs.io network: Configuration API, Health API, and Metrics API. Tagged areas include Application Server, Cloud-Native, IBM, Jakarta EE, and Java.

The Open Liberty catalog on APIs.io includes 1 Spectral governance ruleset.

Open Liberty’s developer surface includes authentication, documentation, getting-started guide, engineering blog, and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub
31.6/100 thin ▬ flat Agent 43/100 agent ready Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0
AccessFreemiumSelf serve⚡ Free to try
3 APIs
Application ServerCloud-NativeIBMJakarta EEJavaMicroProfileMicroservices

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0
Composite quality — 31.6/100 · thin
Contract Quality 13.2 / 25
Developer Ergonomics 7.1 / 20
Access Clarity 3.2 / 20
Operational Transparency 1.4 / 13
Contract Governance 1.2 / 12
Discoverability 5.6 / 10
Agent readiness — 43/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
Documented Reversibility 6 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 8 / 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 4 / 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/open-liberty: 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 3

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

Open Liberty Configuration API

Server configuration management via Admin REST Connector.

Open Liberty Health API

MicroProfile Health check endpoints.

Open Liberty Metrics API

MicroProfile Metrics endpoints.

Open Collections 5

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

API Collection

OPEN COLLECTION

Open Liberty Admin REST API

OPEN COLLECTION

Open Liberty Admin REST Configuration API

OPEN COLLECTION

Open Liberty Admin REST Configuration Health API

OPEN COLLECTION

Open Liberty Admin REST Configuration Metrics API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Open Liberty Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Open Liberty Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Open Liberty Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Open Liberty API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 1

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

Open Liberty Server Configuration

1 properties

JSON SCHEMA

Security Posture 2

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

Open Liberty Authentication

http · 1 scheme

SECURITY

Open Liberty Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Open Liberty Agentic Access

11 operations

11 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 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: open-liberty
name: Open Liberty
description: Open Liberty is a lightweight, open source Java application server from IBM for building cloud-native microservices
  and applications with full support for Jakarta EE and MicroProfile.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/open-liberty.png
tags:
- Application Server
- Cloud-Native
- IBM
- Jakarta EE
- Java
- MicroProfile
- Microservices
tags_raw:
- Application Server
- Cloud Native
- IBM
- Jakarta EE
- Java
- MicroProfile
- Microservices
url: https://raw.githubusercontent.com/api-evangelist/open-liberty/refs/heads/main/apis.yml
created: '2026-03-26'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: open-liberty:open-liberty-configuration-api
  name: Open Liberty Configuration API
  description: Server configuration management via Admin REST Connector.
  humanURL: https://openliberty.io/
  tags:
  - Configuration
  properties:
  - type: OpenAPI
    url: openapi/open-liberty-configuration-api-openapi.yml
  - type: Documentation
    url: https://openliberty.io/docs/
  - type: GettingStarted
    url: https://openliberty.io/start/
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/open-liberty/refs/heads/main/json-schema/server-config.json
- aid: open-liberty:open-liberty-health-api
  name: Open Liberty Health API
  description: MicroProfile Health check endpoints.
  humanURL: https://openliberty.io/
  tags:
  - Health
  properties:
  - type: OpenAPI
    url: openapi/open-liberty-health-api-openapi.yml
  - type: Documentation
    url: https://openliberty.io/docs/
  - type: GettingStarted
    url: https://openliberty.io/start/
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/open-liberty/refs/heads/main/json-schema/server-config.json
- aid: open-liberty:open-liberty-metrics-api
  name: Open Liberty Metrics API
  description: MicroProfile Metrics endpoints.
  humanURL: https://openliberty.io/
  tags:
  - Metrics
  properties:
  - type: OpenAPI
    url: openapi/open-liberty-metrics-api-openapi.yml
  - type: Documentation
    url: https://openliberty.io/docs/
  - type: GettingStarted
    url: https://openliberty.io/start/
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/open-liberty/refs/heads/main/json-schema/server-config.json
common:
- type: AgenticAccess
  url: agentic-access/open-liberty-agentic-access.yml
- type: DomainSecurity
  url: security/open-liberty-domain-security.yml
- type: Authentication
  url: authentication/open-liberty-authentication.yml
- type: Website
  url: https://openliberty.io/
- type: Documentation
  url: https://openliberty.io/docs/
- type: GettingStarted
  url: https://openliberty.io/start/
- type: GitHubOrganization
  url: https://github.com/OpenLiberty
- type: Blog
  url: https://openliberty.io/blog/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com