Stoplight website screenshot

Stoplight

Stoplight is a collaborative, design-first API platform providing a visual editor for OpenAPI specifications, interactive hosted documentation, automatic mock servers, API style guides and governance, and open-source tools including Prism (mock server), Spectral (JSON/YAML linter), and Elements (documentation components). Acquired by SmartBear in 2023, Stoplight is now positioned within SmartBear's API Hub solution group alongside SwaggerHub, with Spectral, Prism, and Elements progressively integrated into the unified API Hub experience. The platform supports OpenAPI v3.1, v3.0, v2.0, Arazzo v1.0, and AsyncAPI v2.x, with integrations for GitHub, GitLab, Bitbucket, and Azure DevOps. The Stoplight status page now redirects to stoplight.status.smartbear.com, confirming the operational consolidation under SmartBear.

Stoplight publishes 6 APIs on the APIs.io network. Tagged areas include API Design, API Documentation, API Governance, AsyncAPI, and Design-First.

The Stoplight catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Stoplight’s developer surface includes developer portal, documentation, pricing, engineering blog, support, signup flow, getting-started guide, and 20 more developer resources.

50.0/100 developing ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
6 APIs
API DesignAPI DocumentationAPI GovernanceAsyncAPIDesign-FirstLintingMock ServersOpenAPISmartBear API HubStyle Guides

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 50.0/100 · developing
Contract Quality 3.2 / 25
Developer Ergonomics 8.3 / 20
Commercial Clarity 16.8 / 20
Operational Transparency 8.2 / 13
Governance 7.0 / 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/stoplight: 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 6

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

Stoplight Platform

Stoplight Platform is a SaaS collaborative API design and documentation management tool providing a visual editor for OpenAPI specifications, interactive hosted documentation, a...

Stoplight Prism

Prism is an open-source HTTP mock and proxy server that turns any OpenAPI v2/v3 or Postman Collection file into a realistic API server with mocking, transformations, and validat...

Stoplight Spectral

Spectral is an open-source JSON and YAML linter for creating automated API style guides and governance rulesets. Provides built-in support for OpenAPI v3.1, v3.0, and v2.0, Araz...

Stoplight Elements

Elements is an open-source toolkit for building beautiful, interactive API documentation from OpenAPI specifications using embeddable React or Web Components. Provides highly cu...

Stoplight Studio

Stoplight Studio is the visual API design and technical writing editor included in the Stoplight Platform. Provides a form-based editor for creating and editing OpenAPI v2 and v...

Stoplight CLI

The Stoplight CLI enables programmatic linting of API descriptions and pushing analysis results to the Stoplight Platform from CI/CD pipelines. Supports analyzing local projects...

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Stoplight Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Stoplight Context

6 classes · 7 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Stoplight API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 1

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

Spectral Ruleset

5 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Stoplight Spectral Ruleset Structure

0 properties

JSON STRUCTURE

Security Posture 1

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

Stoplight Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 5

Portal, sign-up, and the first successful call

Documentation 3

Reference material describing how the API behaves

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 2

Authentication, authorization, and security posture

Learn 2

Tutorials, courses, talks, and written guidance

Operate 3

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 4

The organization behind the API

Other 4

Properties that don't map to a standard resource type

Source (apis.yml)

apis.yml Raw ↑
aid: stoplight
name: Stoplight
description: Stoplight is a collaborative, design-first API platform providing a visual editor for OpenAPI specifications,
  interactive hosted documentation, automatic mock servers, API style guides and governance, and open-source tools including
  Prism (mock server), Spectral (JSON/YAML linter), and Elements (documentation components). Acquired by SmartBear in 2023,
  Stoplight is now positioned within SmartBear's API Hub solution group alongside SwaggerHub, with Spectral, Prism, and Elements
  progressively integrated into the unified API Hub experience. The platform supports OpenAPI v3.1, v3.0, v2.0, Arazzo v1.0,
  and AsyncAPI v2.x, with integrations for GitHub, GitLab, Bitbucket, and Azure DevOps. The Stoplight status page now redirects
  to stoplight.status.smartbear.com, confirming the operational consolidation under SmartBear.
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: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/stoplight.png
tags:
- API Design
- API Documentation
- API Governance
- AsyncAPI
- Design-First
- Linting
- Mock Servers
- OpenAPI
- SmartBear API Hub
- Style Guides
created: '2026-03-03'
modified: '2026-05-22'
url: https://raw.githubusercontent.com/api-evangelist/stoplight/refs/heads/main/apis.yml
specificationVersion: '0.19'
apis:
- aid: stoplight:stoplight-platform
  name: Stoplight Platform
  description: Stoplight Platform is a SaaS collaborative API design and documentation management tool providing a visual
    editor for OpenAPI specifications, interactive hosted documentation, automatic mock servers, API style guides, governance
    features, and multi-branch Git integration. Teams design, document, mock, and govern APIs using a design-first approach.
    Supports OpenAPI v3.1/v3.0/v2.0, Arazzo v1.0, and AsyncAPI v2.x. Integrates with GitHub, GitLab, Bitbucket, and Azure
    DevOps. Now part of SmartBear's API Hub solution group alongside SwaggerHub.
  humanURL: https://stoplight.io
  tags:
  - API Design
  - API Documentation
  - API Governance
  - Design-First
  - Mock Servers
  - OpenAPI
  - SmartBear API Hub
  - Style Guides
  properties:
  - type: Documentation
    url: https://docs.stoplight.io/docs/platform/vrjs3xapm31b7-stoplight-documentation
  - type: Portal
    url: https://stoplight.io
  - type: Pricing
    url: https://stoplight.io/pricing
  - type: GettingStarted
    url: https://docs.stoplight.io/docs/platform/vrjs3xapm31b7-stoplight-documentation
  - type: Signup
    url: https://stoplight.io/welcome
  - type: Login
    url: https://stoplight.io/login
  - type: CaseStudies
    url: https://stoplight.io/case-studies
  - type: Solutions
    url: https://stoplight.io/solutions
  - type: StatusPage
    url: https://stoplight.status.smartbear.com/
- aid: stoplight:prism
  name: Stoplight Prism
  description: Prism is an open-source HTTP mock and proxy server that turns any OpenAPI v2/v3 or Postman Collection file
    into a realistic API server with mocking, transformations, and validations. Enables frontend and backend teams to develop
    in parallel using API descriptions. Can be used as a local CLI tool or via hosted Stoplight mock servers. Supports dynamic
    example generation, request/response validation, and content negotiation. The prism repository on GitHub has approximately
    4,943 stars and is one of Stoplight's flagship open-source projects.
  humanURL: https://stoplight.io/open-source/prism
  tags:
  - API Testing
  - Mock Servers
  - Open Source
  - OpenAPI
  - Postman
  - Proxy
  - Validation
  properties:
  - type: Documentation
    url: https://docs.stoplight.io/docs/prism
  - type: GitHubRepository
    url: https://github.com/stoplightio/prism
  - type: NPM
    url: https://www.npmjs.com/package/@stoplight/prism-cli
- aid: stoplight:spectral
  name: Stoplight Spectral
  description: Spectral is an open-source JSON and YAML linter for creating automated API style guides and governance rulesets.
    Provides built-in support for OpenAPI v3.1, v3.0, and v2.0, Arazzo v1.0, and AsyncAPI v2.x. Enables teams to validate
    API descriptions against custom rulesets, enforce consistent design standards, and integrate API governance into CI/CD
    pipelines. Supports custom functions and third-party ruleset packages via npm. SmartBear has integrated Spectral into
    SwaggerHub for API design and governance. The spectral repository has approximately 3,115 stars.
  humanURL: https://stoplight.io/open-source/spectral
  tags:
  - API Governance
  - AsyncAPI
  - CI/CD
  - Linting
  - Open Source
  - OpenAPI
  - Style Guides
  properties:
  - type: Documentation
    url: https://docs.stoplight.io/docs/spectral
  - type: GitHubRepository
    url: https://github.com/stoplightio/spectral
  - type: NPM
    url: https://www.npmjs.com/package/@stoplight/spectral-cli
  - type: Docker
    url: https://hub.docker.com/r/stoplight/spectral
  - type: GitHubAction
    url: https://github.com/stoplightio/spectral-action
  - type: VSCodeExtension
    url: https://github.com/stoplightio/vscode-spectral
  - type: Rulesets
    url: https://github.com/stoplightio/spectral-rulesets
  - type: OWASPRuleset
    url: https://github.com/stoplightio/spectral-owasp-ruleset
  - type: DocumentationRuleset
    url: https://github.com/stoplightio/spectral-documentation
- aid: stoplight:elements
  name: Stoplight Elements
  description: Elements is an open-source toolkit for building beautiful, interactive API documentation from OpenAPI specifications
    using embeddable React or Web Components. Provides highly customizable, interactive API reference documentation, including
    operation listings, request/response examples, schema viewers, and try-it functionality. Can be embedded in any web application
    or used as a standalone documentation site. The elements repository has approximately 2,425 stars. SmartBear has integrated
    Elements into the SwaggerHub experience.
  humanURL: https://stoplight.io/open-source/elements
  tags:
  - API Documentation
  - Components
  - Open Source
  - OpenAPI
  - React
  - Web Components
  properties:
  - type: Documentation
    url: https://docs.stoplight.io/docs/elements
  - type: GitHubRepository
    url: https://github.com/stoplightio/elements
  - type: NPM
    url: https://www.npmjs.com/package/@stoplight/elements
  - type: Demo
    url: https://elements-demo.stoplight.io/
- aid: stoplight:studio
  name: Stoplight Studio
  description: Stoplight Studio is the visual API design and technical writing editor included in the Stoplight Platform.
    Provides a form-based editor for creating and editing OpenAPI v2 and v3 specifications with full validation, mocking,
    and modeling support. Includes a built-in Markdown editor, image manager, and the ability to publish documentation to
    the Stoplight documentation platform. Available as a web app and desktop application. The studio repository has approximately
    867 stars.
  humanURL: https://stoplight.io/api-design
  tags:
  - API Design
  - Editor
  - OpenAPI
  - Technical Writing
  properties:
  - type: Documentation
    url: https://docs.stoplight.io/docs/studio
  - type: GitHubRepository
    url: https://github.com/stoplightio/studio
- aid: stoplight:cli
  name: Stoplight CLI
  description: The Stoplight CLI enables programmatic linting of API descriptions and pushing analysis results to the Stoplight
    Platform from CI/CD pipelines. Supports analyzing local projects, running Spectral rulesets, and integrating API governance
    checks into automated build workflows with GitHub Actions, CircleCI, Jenkins, and other CI platforms.
  humanURL: https://docs.stoplight.io/docs/platform/1e78f9c9bfc1e-stoplight-cli
  tags:
  - CI/CD
  - CLI
  - DevOps
  - Open Source
  - OpenAPI
  properties:
  - type: Documentation
    url: https://docs.stoplight.io/docs/platform/1e78f9c9bfc1e-stoplight-cli
  - type: NPM
    url: https://www.npmjs.com/package/@stoplight/cli
  - type: GitHubActionWorkflow
    url: https://github.com/stoplightio/stoplight-cli-workflow
common:
- type: DomainSecurity
  url: security/stoplight-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/stoplight
- type: Portal
  url: https://stoplight.io
- type: Documentation
  url: https://docs.stoplight.io/
- type: Pricing
  url: https://stoplight.io/pricing
- type: Blog
  url: https://blog.stoplight.io/
- type: About
  url: https://stoplight.io/about
- type: Support
  url: https://support.stoplight.io/
- type: Contact
  url: https://stoplight.io/contact
- type: StatusPage
  url: https://stoplight.status.smartbear.com/
- type: PrivacyPolicy
  url: https://stoplight.io/privacy
- type: TermsOfService
  url: https://stoplight.io/terms
- type: Security
  url: https://stoplight.io/security-practices
- type: Signup
  url: https://stoplight.io/welcome
- type: Login
  url: https://stoplight.io/login
- type: GitHubOrg
  url: https://github.com/stoplightio
- type: OpenSource
  url: https://stoplight.io/open-source
- type: GettingStarted
  url: https://stoplight.io/api-development-guide
- type: Solutions
  url: https://stoplight.io/solutions
- type: CaseStudies
  url: https://stoplight.io/case-studies
- type: Webinars
  url: https://stoplight.io/webinars
- type: Guides
  url: https://stoplight.io/guides
- type: Press
  url: https://stoplight.io/press
- type: YouTube
  url: https://www.youtube.com/stoplight
- type: APIGovernance
  url: https://stoplight.io/api-governance
- type: APIDocumentation
  url: https://stoplight.io/api-documentation
- type: Integrations
  url: https://stoplight.io/integrations
- type: ParentCompany
  url: https://smartbear.com/product/stoplight/
- type: Portal
  url: https://smartbear.com/api-hub/
integrations:
- name: GitHub
- name: GitLab
- name: Bitbucket
- name: Azure DevOps
- name: SAML SSO
- name: LDAP
- name: Google Analytics
plans:
- name: Free
  price: $0
  users: 1
  projects: 1
- name: Basic
  priceAnnual: $44/month
  priceMonthly: $56/month
  users: 3
  additionalUser: $11-$14
  projects: unlimited
- name: Startup
  priceAnnual: $113/month
  priceMonthly: $147/month
  users: 8
  additionalUser: $11-$14
  projects: unlimited
- name: Pro Team
  priceAnnual: $362/month
  priceMonthly: $453/month
  users: 15
  additionalUser: $22-$27
  teams: 20
- name: Enterprise
  price: custom
  users: unlimited
  projects: unlimited
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com