# JUnit

**Canonical:** https://apis.io/providers/junit/  
**Website:** https://junit.org/junit5/  
**APIs profiled:** 2

JUnit is a programmer-friendly testing framework for Java and the JVM. JUnit 5 is the next generation of JUnit, composed of three modules: JUnit Platform, JUnit Jupiter, and JUnit Vintage.

## Kin Score — 17.5 / 100 (emerging)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 17.5).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 19.7 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 9.5 |
| Commercial Clarity | 15.8 |
| Access Clarity | 15.8 |

## Agent readiness — 3.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (2)

- **JUnit 5 Jupiter** — The next generation of JUnit for Java 8 and beyond, providing an expressive API for writing tests and extensions.
- **JUnit 4 Vintage** — The legacy version of JUnit still widely used in Java projects.

## Security (1)

- **Junit Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Junit Plans Pricing**

## Tags

Java, TDD, Test Automation, Testing, Unit Testing

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/junit/). Scores are computed from the provider's own public artifacts under a published rubric.