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Alternatives to Swagger

10 alternatives

  1. 1API Testing Platforms, API Testing Tools

    Schemathesis

    API Testing Platforms

    Property-based API testing tool that automatically generates test cases from OpenAPI and GraphQL specifications.

    Free planDynamic Application Security TestingTest Automation Frameworks
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  2. 2API Testing Platforms, API Testing Tools

    Hoppscotch

    API Testing Tools

    Hoppscotch is an open-source API development platform providing a fast, lightweight alternative to Postman for testing REST, GraphQL, WebSocket, and MQTT APIs.

    Graphql API testing with query builder and schema explorerMcp server integration for AI agent access

    Price$6 / user / month

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  3. 3API Testing Platforms, API Testing Tools

    SoapUI

    API Testing Tools

    Open source API testing tool by SmartBear supporting REST, SOAP, and GraphQL with assertion-based validation.

    Rest API testingSoap and wsdl testingSecurity testing
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  4. 4API Testing Platforms

    Parasoft

    API Testing Platforms

    Software testing platform offering API, UI, and DevOps tools for quality engineering.

    Static code analysis with control flow and data flow trackingIndustry standards compliance verificationAutomated unit and integration test generation
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  5. 5API Testing Platforms, API Testing Tools

    Postman

    API Testing Platforms

    Postman is an API platform for designing, testing, documenting, and monitoring APIs with collaboration features for developer teams.

    Mock server creationSdk generation and distributionTeam collaboration and workspaces
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  6. 6API Testing Platforms, Contract Testing

    Pact

    Contract Testing

    Open source contract testing framework ensuring microservices communicate correctly by verifying API interactions between consumers and providers.

    Consumer driven contract testingMulti language supportPact broker for contract management
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  7. 7Developer Experience Platforms, API Testing Tools

    Scalar

    Developer Experience Platforms

    Scalar provides a modern toolkit for API documentation, request testing, and developer-facing API experiences built around OpenAPI.

    Free planFree trialSOC 2GDPRTiered plansAPI Documentation
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  8. 8API Testing Platforms

    Loadmill

    API Testing Platforms

    AI-powered API testing platform that automatically generates and executes API tests from real traffic with smart assertions.

    Jira integration
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  9. 9API Testing Platforms

    Assertible

    API Testing Platforms

    Automated API testing and monitoring service that validates web services with continuous integration support.

    Free planFree trialContinuous TestingBackend Engineer
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  10. 10API Testing Platforms

    Stepci

    API Testing Platforms

    Open source API testing and monitoring tool that uses YAML-defined test workflows for CI/CD integration.

    Free planFree trialTest Automation FrameworksBackend Engineer
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