Cost / License
- Paid
- Proprietary
Platforms
- Online



Stoplight is described as 'API Design, Development, and Documentation platform that enables consistency, reusability, and quality, all with an easy, enjoyable developer experience' and is a API Client in the development category. There are more than 25 alternatives to Stoplight for a variety of platforms, including Mac, Windows, Linux, Web-based and SaaS apps. The best Stoplight alternative is Postman, which is free. Other great apps like Stoplight are Fiddler, Yaak, ApiArk and RapidAPI for Mac.






Design and debug APIs in a powerful visual editor. Describe and debug easily with JSON Schema support. Apidog is a complete set of tools that connects the entire API lifecycle, helping R&D teams implement best practices for API Design-first development.




Lama2 defines the human-friendly l2 syntax and CLI for describing and executing APIs. Store your APIs in plain-text files. Collaborate with team using version control (say, git). Run Lama2 directly from VSCode extension. Think of Lama2 as Markdown for APIs.


Bearer is a developer tool that helps engineering teams monitor API requests, track performance, detect anomalies, and fix issues for their critical API usage. The solution monitors all outgoing API requests without proxying traffic.




RestCase is a security-focused API development platform that enables its users to rapidly create secure microservices, mock them in order to start testing, monitor APIs and collaborate on their development and testing.


Powerful IDE to work with API. Harness the power of scenarios, autocompletion and syntax highlight for API development. Write tests, share code without leaving the comfortable development environment.




A fast Desktop API client. Design OpenAPI specs visually. Linear and Visual Flow runner. API testing with assertions. Debug with timing breakdowns — with HTTP/GraphQL/WebSocket/SSE support.




RequesterX is a free desktop HTTP client for API testing and development. Organize requests into nested collections, use environment variables for easy context switching, generate code snippets in 13 languages, and keep everything stored locally — no account required.

Bump.sh helps you build a branded single source of truth, cataloging all your APIs. We’ve created the reference point for developers and product managers consuming and building APIs, no matter which technology they rely on (OpenAPI, AsyncAPI, and more soon).



