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 API contracts indexed 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 8 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

27.1/100 thin ▬ flat Agent 29/100 agent ready Front door AI 4/6 moderate Heartbeat 100/100 alive Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

Application Server Cloud-Native IBM Jakarta EE JavaMicroProfileMicroservices

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 27.1/100 · thin

Contract Quality 9.8 / 21

Developer Ergonomics 6.1 / 17

Access Clarity 1.3 / 17

Operational Transparency 1.2 / 11

Contract Governance 1.0 / 10

Discoverability 4.1 / 9

Regulatory Posture 1.8 / 15

Agent readiness — 29/100 · 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

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.

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.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

5 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 7.9 — up to +18.4 composite points
Contract Quality scores 46.1 — up to +13.5 composite points
Developer Ergonomics scores 35.7 — up to +12.9 composite points

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.

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/open-liberty/apis.yml: open an issue on github.com/api-evangelist/open-liberty 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
IDE Extension Marketplaces (JetBrains, VS Code, Open VSX, Docker Verified Publishers, PyPI orgs)	builds-on	56.5	-	-
Docker Hub Verified Publishers + Official Images	builds-on	56.5	-	-

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 2

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.

Jakarta EE

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

OpenAPI

measured — observed by APIs.io (published)

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 4

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

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

Open Liberty API pricing

Not yet checked against Open Liberty's own pricing page. Compiled by API Evangelist on 2026-05-04; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
Free freemium	Free
Professional paid	Free
Enterprise enterprise	—

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against Open Liberty's documentation. All 5 limits →

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

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Open Liberty

SLA

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 — jsonschema 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 2

Reference material describing how the API behaves

Documentation

Documentation

MCPDocumentation

MCPDocumentation

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

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

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
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: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  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: '2026-09-13'
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: Plans
  url: plans/open-liberty-plans-pricing.yml
- type: RateLimits
  url: rate-limits/open-liberty-rate-limits.yml
- type: FinOps
  url: finops/open-liberty-finops.yml
- 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/
- name: MCP Documentation
  url: https://openliberty.io/blog/2026/09/08/26.0.0.9.html
  type: MCPDocumentation
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Open Liberty API — frequently asked questions

Does Open Liberty have an API?

Yes. APIs.io lists 3 APIs from Open Liberty, including Open Liberty Configuration API, Open Liberty Health API and Open Liberty Metrics API.

Is there an OpenAPI specification for the Open Liberty API?

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

How do I authenticate with the Open Liberty API?

Open Liberty uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Open Liberty Authentication.

How much does the Open Liberty API cost?

APIs.io lists 3 pricing plans for Open Liberty, with each plan's price, limits and inclusions under Pricing on this page.

Is the Open Liberty API ready for AI agents?

Open Liberty has a Kin Score of 27.1 out of 100 (thin) and an Agent Readiness score of 29.2 (agent-ready), scored by API Evangelist on 2026-11-06.

Work with this as data

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Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
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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