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Microcks
Cloud native open source tool for API mocking and testing
Mocking TestingAPI mocking and testing
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Open source API testing framework with YAML workflows and CI support
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REST Assured
Java library for testing and validating REST APIs with simple syntax
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Schemathesis
Open source tool that tests APIs by generating cases from schemas
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Mock Service Worker
API mocking library for browser and Node.js
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WireMock
Open source tool for simulating APIs in tests and development
Mocking TestingAPI mocking and simulation
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Open source
Mockoon
Create and run mock APIs locally with free open-source tools
Mocking TestingLocal mock API server
Freemium
Beeceptor
Hosted mock server builder for REST, SOAP, GraphQL and gRPC APIs
Mocking TestingHosted mock APIs
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MockServer
Open source mock, proxy and recording server for HTTP and gRPC
Mocking TestingMock and proxy HTTP
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Swagger
Open source tools for designing and documenting OpenAPI APIs
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