Insomnia
Insomnia is a comprehensive API development platform that enables developers to design, test, and debug APIs across various protocols including HTTP, gRPC, GraphQL, and WebSockets. It features native support for OpenAPI specifications, automated testing, and mocking capabilities. The platform integrates with Git for version control and offers an enterprise-grade CLI for CI/CD automation, alongside AI-powered workflows and native MCP client support for modern development environments.
Checked on Sep 30, 2026.
Alternative resources
Bruno
A Git-native, local-first API client that stores collections as plain-text files directly within your project repository.
Swagger
API development and design toolset supporting OpenAPI and AsyncAPI specifications for documentation, testing, and code generation.
Hoppscotch
An open-source API development ecosystem for testing, documenting, and managing REST, GraphQL, and WebSocket requests.