Dredd
API Testing Tools
Language-agnostic HTTP API testing tool that validates API documentation against its backend implementation.
API Testing Tools
Language-agnostic HTTP API testing tool that validates API documentation against its backend implementation.

API Testing Tools
Open-source testing toolkit auto-generating test cases from API traffic for fast regression testing.
API Testing Tools
Lightweight framework for building mock HTTP servers in Java for integration testing of APIs.
API Testing Tools
Command-line tool for running HTTP requests defined in plain text with assertions for testing APIs.

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

API Testing Tools
Open-source OpenAPI-aware HTTP proxy for validating API requests and responses against schemas in real time.

API Testing Tools
Human-friendly command-line HTTP client for API testing providing intuitive syntax and JSON support.

Test Automation Frameworks
Open source API testing framework combining test automation with API mocks and performance.

API Mocking
Flexible API mocking tool for testing microservices and APIs by simulating HTTP-based APIs for reliable integration testing.

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.
Price$6 / user / month