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API Hub

API Hub

Complete Platform for API Design, Testing, and Documentation

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Last Updated:11/7/2025
Pricing:
FreemiumSubscription
Category:
API DocumentationOpenAPI Documentation
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What is API Hub

API Hub is an all-in-one platform for the complete API development process. It lets you design APIs using a visual editor or code, test them automatically, create documentation, and share with users through branded portals.

The platform works with OpenAPI and AsyncAPI standards, supporting both traditional REST APIs and event-driven architectures. It includes tools for checking that your APIs follow your team's rules, generating mock servers for testing, and validating contracts between services.

Teams can work together with version control, commenting features, and role-based permissions. The platform connects with popular development tools like GitHub, CI/CD pipelines, and API management systems. Whether you need basic API design or complex enterprise workflows, API Hub provides the features you need.

Features of API Hub

  • OpenAPI and AsyncAPI specification support

  • AI-assisted API design and generation

  • Visual form editor and code editor

  • Automatic style validation and linting

  • Mock server generation

  • Contract testing with AI automation

  • Sequential and parallel test execution

  • Branded documentation portals

  • Team collaboration with comments

  • Version control integration

  • Code generation for multiple languages

  • CI/CD pipeline integration

API Hub Pricing

Individual
EUR27.9
  • Codegen, editor, form-based editor
  • 5 domains (component libraries)
  • 1 public product with SmartBear branding
  • 10 contracts with 10 AI credits
  • 50 test executions
  • Test automation and CI/CD integration
  • Assertions and reporting
  • Sequential testing
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Team
EUR39.06
  • All Individual features
  • 10 domains (component libraries)
  • 2 public products with SmartBear branding
  • 20 contracts with 10 AI credits per user
  • 1 System Account
  • 2 Webhooks
  • 50 test executions
  • Test automation and CI/CD integration
Enterprise
EUR65.84
  • All Team features
  • Standardization with unlimited domains
  • 5 public products with SmartBear branding
  • 50 contracts with 10 AI credits per user
  • 1 System Account
  • 50 Webhooks
  • Role-based access control (RBAC)
  • 100 test executions
Enterprise Plus
Custom
  • All Enterprise features
  • Unlimited public and private products
  • Full customization options
  • Custom API templates
  • Unlimited contracts with 30 AI credits per user
  • Unlimited System Accounts
  • Unlimited Webhooks
  • Role-based access control (RBAC)

API Hub Use Cases

FAQ's About API Hub

API Hub (formerly SwaggerHub) is a commercial platform that includes the free Swagger tools plus many additional features. While free Swagger tools provide basic API design and documentation, API Hub adds team collaboration, version control, automated testing, contract validation, branded portals, AI assistance, and enterprise-grade features. The free tools work well for individual projects, but API Hub is built for team workflows and professional API management.
Yes, API Hub supports both OpenAPI specification for REST APIs and AsyncAPI specification for event-driven and message-based APIs. This makes it flexible for modern architectures that combine traditional request-response patterns with asynchronous messaging, webhooks, and streaming data. You can design, document, and test both types in the same platform.
Contract testing in API Hub validates that different services in your system work together correctly. It checks both the provider side (the API being called) and the consumer side (the application calling the API) to ensure they agree on the contract. The platform uses AI to help automate test creation and can run these tests in your deployment pipeline to catch breaking changes before they reach production.
Yes, API Hub lets you create fully branded API portals with custom domains, landing pages, logos, and styling. You can control which APIs are public or private, organize them into products, and create a professional developer experience. The Portal Pro add-on provides even more customization options and access management features for teams that need advanced branding capabilities.
Yes, API Hub integrates with many popular development tools. It connects with version control systems like GitHub and GitLab, CI/CD platforms like Jenkins, API gateways, and testing frameworks. You can trigger tests automatically in your pipeline, sync API definitions with your code repository, and export designs in multiple formats. The platform also provides APIs and CLI tools for custom integrations.
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