NUnit website screenshot

NUnit

NUnit is a unit-testing framework for all .NET languages. Initially ported from JUnit, the current production release has been completely rewritten with many new features and support for a wide range of .NET platforms. NUnit is a software testing framework, not a remote HTTP API service.

NUnit publishes 4 APIs on the APIs.io network. Tagged areas include .NET, C#, Framework, Open Source, and TDD.

NUnit’s developer surface includes documentation, engineering blog, changelog, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub
24.3/100 emerging ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessFreemium
4 APIs
.NETC#FrameworkOpen SourceTDDTestingUnit Testing

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 24.3/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 3.0 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 6.8 / 13
Governance 0.0 / 12
Discoverability 6.5 / 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/nunit: 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 4

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

NUnit Framework API

The core NUnit testing framework programming API for writing and executing unit tests in .NET applications. Provides assertions, attributes, and lifecycle hooks consumed via the...

NUnit Console Runner

Console runner for executing NUnit tests from the command line, enabling automation in build pipelines and CI/CD systems.

NUnit3 Test Adapter

Test adapter for running NUnit tests in Visual Studio, dotnet test, and other VSTest-compatible test runners.

NUnit Analyzers

Roslyn-based analyzers for NUnit that detect common test authoring mistakes and suggest fixes at compile time.

Pricing Plans 1

Published pricing tiers and plan structures.

Nunit Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Nunit Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Nunit Finops

FINOPS

Security Posture 1

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

Nunit Domain Security

TLSv1.3

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

Operate 2

Status, limits, changes, and where to get help

Community
Community
 ChangeLog
ChangeLog

Commercial 1

Pricing, plans, and the legal terms of use

License
License

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: nunit
name: NUnit
description: NUnit is a unit-testing framework for all .NET languages. Initially ported from JUnit, the current production
  release has been completely rewritten with many new features and support for a wide range of .NET platforms. NUnit is a
  software testing framework, not a remote HTTP API service.
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
position: Producer
access: 1st-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/nunit.png
tags:
- .NET
- C#
- Framework
- Open Source
- TDD
- Testing
- Unit Testing
url: https://raw.githubusercontent.com/api-evangelist/nunit/refs/heads/main/apis.yml
created: '2024-01-01'
modified: '2026-04-28'
specificationVersion: '0.19'
apis:
- aid: nunit:nunit-framework-api
  name: NUnit Framework API
  description: The core NUnit testing framework programming API for writing and executing unit tests in .NET applications.
    Provides assertions, attributes, and lifecycle hooks consumed via the NUnit NuGet package.
  humanURL: https://docs.nunit.org/
  tags:
  - Assertions
  - Attributes
  - Testing
  properties:
  - type: Documentation
    url: https://docs.nunit.org/articles/nunit/intro.html
  - type: GettingStarted
    url: https://docs.nunit.org/articles/nunit/getting-started.html
  - type: Reference
    url: https://docs.nunit.org/api/
  - type: NuGet Package
    url: https://www.nuget.org/packages/NUnit
  - type: Source Code
    url: https://github.com/nunit/nunit
- aid: nunit:nunit-console-runner
  name: NUnit Console Runner
  description: Console runner for executing NUnit tests from the command line, enabling automation in build pipelines and
    CI/CD systems.
  humanURL: https://docs.nunit.org/articles/nunit/running-tests/Console-Runner.html
  tags:
  - Console
  - Test Runner
  - CLI
  properties:
  - type: Documentation
    url: https://docs.nunit.org/articles/nunit/running-tests/Console-Runner.html
  - type: Command Line Reference
    url: https://docs.nunit.org/articles/nunit/running-tests/Console-Command-Line.html
  - type: NuGet Package
    url: https://www.nuget.org/packages/NUnit.ConsoleRunner
- aid: nunit:nunit3-test-adapter
  name: NUnit3 Test Adapter
  description: Test adapter for running NUnit tests in Visual Studio, dotnet test, and other VSTest-compatible test runners.
  humanURL: https://docs.nunit.org/articles/vs-test-adapter/Index.html
  tags:
  - Visual Studio
  - Test Adapter
  - VSTest
  properties:
  - type: Documentation
    url: https://docs.nunit.org/articles/vs-test-adapter/Index.html
  - type: NuGet Package
    url: https://www.nuget.org/packages/NUnit3TestAdapter
  - type: Source Code
    url: https://github.com/nunit/nunit3-vs-adapter
- aid: nunit:nunit-analyzers
  name: NUnit Analyzers
  description: Roslyn-based analyzers for NUnit that detect common test authoring mistakes and suggest fixes at compile time.
  humanURL: https://docs.nunit.org/articles/nunit-analyzers/NUnit-Analyzers.html
  tags:
  - Analyzers
  - Roslyn
  - Code Quality
  properties:
  - type: Documentation
    url: https://docs.nunit.org/articles/nunit-analyzers/NUnit-Analyzers.html
  - type: NuGet Package
    url: https://www.nuget.org/packages/NUnit.Analyzers
  - type: Source Code
    url: https://github.com/nunit/nunit.analyzers
common:
- type: DomainSecurity
  url: security/nunit-domain-security.yml
- type: Website
  url: https://nunit.org
- type: Documentation
  url: https://docs.nunit.org
- type: GitHubOrganization
  url: https://github.com/nunit
- type: Blog
  url: https://nunit.org/news/
- type: Community
  url: https://nunit.org/community/
- type: ChangeLog
  url: https://docs.nunit.org/articles/nunit/release-notes/
- type: License
  url: https://docs.nunit.org/articles/nunit/license.html
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com