JSF website screenshot

JSF

Jakarta Faces (formerly JavaServer Faces / JSF) is an MVC framework for building component-based user interfaces for Java web applications. It simplifies the development of web UIs through a component-driven approach with managed beans, an event-driven programming model, page navigation, state management, input validation, and built-in support for internationalization and accessibility. Jakarta Faces 4.1 is the current stable release with Jakarta EE 11, with 5.0 in development for Jakarta EE 12.

JSF publishes 1 API on the APIs.io network. Tagged areas include Java, JSF, Jakarta EE, MVC, and UI Components.

JSF’s developer surface includes documentation and 3 more developer resources.

🌐 Visit website 📡 Source on GitHub
20.4/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessFreemium
1 APIs
JavaJSFJakarta EEMVCUI ComponentsWeb Framework

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 20.4/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 1.7 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 5.9 / 10
Agent readiness — 3/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 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/jsf: 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 1

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

Jakarta Faces

The Jakarta Faces specification for building component-based web user interfaces in Java applications. Defines a UI component model, state management, event handling, validation...

Pricing Plans 1

Published pricing tiers and plan structures.

Jsf Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Jsf Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Jsf Finops

FINOPS

Security Posture 1

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

Jsf Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity

Company 1

The organization behind the API

Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: jsf
name: JSF
description: Jakarta Faces (formerly JavaServer Faces / JSF) is an MVC framework for building component-based user interfaces
  for Java web applications. It simplifies the development of web UIs through a component-driven approach with managed beans,
  an event-driven programming model, page navigation, state management, input validation, and built-in support for internationalization
  and accessibility. Jakarta Faces 4.1 is the current stable release with Jakarta EE 11, with 5.0 in development for Jakarta
  EE 12.
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/jsf.png
tags:
- Java
- JSF
- Jakarta EE
- MVC
- UI Components
- Web Framework
url: https://raw.githubusercontent.com/api-evangelist/jsf/refs/heads/main/apis.yml
created: '2025-01-01'
modified: '2026-04-28'
specificationVersion: '0.19'
apis:
- aid: jsf:jsf
  name: Jakarta Faces
  description: The Jakarta Faces specification for building component-based web user interfaces in Java applications. Defines
    a UI component model, state management, event handling, validation, navigation, and Facelets view technology for server-side
    rendering of web pages.
  humanURL: https://jakarta.ee/specifications/faces/
  tags:
  - Java
  - UI
  - Web Framework
  properties:
  - type: Documentation
    url: https://jakarta.ee/specifications/faces/
  - type: Specification
    url: https://jakarta.ee/specifications/faces/4.1/
common:
- type: DomainSecurity
  url: security/jsf-domain-security.yml
- type: Website
  url: https://jakarta.ee/specifications/faces/
- type: Documentation
  url: https://jakarta.ee/specifications/faces/
- type: GitHubOrganization
  url: https://github.com/jakartaee/faces
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com