Question: Can you recommend an API gateway that allows me to design, debug, and test APIs quickly and securely?

If you need a powerful API gateway that makes it easy to design, debug and test, Kong is a good option. Kong is an API gateway and service mesh that simplifies API management to speed up development and productivity. It provides a single API platform that can be run as a fully managed service, so you can manage APIs securely across clouds, teams, gateways, protocols and architectures from a single place. With built-in tools for designing and testing APIs, Kong works with any cloud, platform or modern protocol, so it's very flexible and adaptable.

If you want AI-boosted API design, testing and documentation, ReAPI is also worth a look. ReAPI has a visual API designer, a no-code test case designer and a serverless cloud runner. It automates API documentation and has built-in debugging tools and AI-powered help to ensure high quality and usability. The platform is designed to accelerate API development, making it easier for teams to work together and publish APIs quickly.

Last, ApyHub Fusion is an all-in-one API client that makes it easier to develop, test and collaborate on APIs. It has a visual API design and development editor, API testing with code previews, AI-assisted API documentation and mock servers. ApyHub Fusion supports OpenAPI, Swagger 2.0 and RAML, and integrates with browser extensions, terminal and alerting systems like Slack and Datadog, so it's a good option for developers and teams.