Stoplight vs Readme: Features, Pricing and User Reviews 2026

Stoplight

Visual API Design and Documentation

API Documentation Developer Portal Builders+1 more

Readme

Interactive API Documentation & Developer Hubs

API Documentation Developer Portal Builders

Stoplight

Visual API Design and Documentation

API Documentation Developer Portal Builders+1 more

Readme

Interactive API Documentation & Developer Hubs

API Documentation Developer Portal Builders

Stoplight

Stoplight is a web-based platform for API design and management that follows a design-first philosophy. This means you plan and design your API before writing any code, which saves time and reduces errors during development.

The platform includes Stoplight Studio, a visual editor that lets you create API designs using forms instead of code. It supports OpenAPI and JSON Schema standards, which are widely used in the industry. You can work directly with files in your Git repository, making it easy to fit into your existing workflow.

Stoplight automatically generates beautiful documentation from your API designs, creates mock servers for testing, and provides validation tools to catch errors early. It works as a cloud service but also offers desktop and web versions.

Readme

Readme is a platform that lets you create and publish interactive developer documentation for your APIs. Unlike traditional documentation tools, Readme automatically generates API references from your OpenAPI or Swagger files and keeps everything in sync with your code.

The platform includes a built-in editor where you can write guides, add code examples, and explain how your API works. Developers using your API can test endpoints directly from the documentation with the Try It feature, making it easier to understand how everything works.

Readme also provides analytics so you can see which parts of your documentation get the most views and where developers might be getting stuck, helping you improve your API experience over time.

Features of Stoplight and Readme

Stoplight

Visual OpenAPI editor with no-code interface
Automatic interactive documentation generation
Instant mock servers with Prism
API style guides and linting with Spectral
Git repository integration (GitHub, GitLab, Bitbucket, Azure DevOps)
Team collaboration with comments and reviews
Reusable components and schemas
Multi-branch support
Custom domains and branding
Component libraries for governance
LDAP and SAML SSO support

Readme

Interactive API reference with Try It functionality
OpenAPI and Swagger file sync
Markdown editor for guides and tutorials
Multiple API version management
Custom domains and white-label branding
Real-time analytics and usage tracking
Team collaboration with reviews and branching
Changelog and discussion forums
SSO and advanced security
AI-powered documentation tools
Mobile responsive design

Use Cases of Stoplight and Readme

Stoplight

Documentation Content Management API Documentation Creation OpenAPI Specification Documentation API Endpoint Mocking API Endpoint Testing

Readme

Documentation Content Management Developer Portal Building API Documentation Creation API Endpoint Testing Documentation Usage Analysis

Pricing of Stoplight and Readme

Stoplight

Stoplight offers plans designed for different team sizes and needs:

The Basic Plan starts at $52 per month and includes the first 3 users for free, with additional users at $13 each. This plan provides the OpenAPI visual designer, interactive documentation, and instant mock servers. It includes a 14-day free trial.

The Startup Plan costs $137 monthly with 8 free users included. Additional users cost $13 each. This adds private projects, multi-branch support, custom domains, theming options, and Google Analytics integration.

The Pro Team Plan is $423 per month with 15 users included at $25 per additional user. It supports up to 20 teams and includes shared style guides, workspace groups, self-hosted Git providers, activity logs, LDAP and SAML SSO, and component libraries.

For larger organizations, Enterprise Plans offer custom pricing with unlimited projects and teams, flexible payment terms, invoicing, and priority support.

Readme

Readme offers flexible pricing to match different team sizes and needs. The platform provides four main plans plus an optional AI booster.

The Free plan costs nothing and includes unlimited API versions, interactive API reference, markdown editor, and basic AI features like AI Dropdown and LLMs.txt support.

The Startup plan at $99 per month adds important features like custom domains, changelogs, discussion forums, MDX components, and the Agent Owlbert AI assistant with AI Doc Linting.

The Business plan at $399 per month removes Readme branding and adds advanced features including CSS/HTML customization, reusable content, metrics export, and branching for team workflows.

The Enterprise plan offers custom pricing with everything in Business plus dedicated design help, shared component libraries, custom JavaScript, audit logs, SSO, and full Docs Audit capabilities with Ask AI API access.