Kong
konghq.comAPIs
The API gateway to reach for once you need real rate limiting, auth, and traffic control in front of your services.
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The default place to build, test, and share API requests — everyone's used it, and for good reason.
A cleaner, faster API client than Postman if you don't need the enterprise bloat.
Open-source, runs in a browser tab, and loads instantly — great when you just need to fire a request.
The OpenAPI tooling everyone standardized on for writing specs that double as live docs.