Echo
Here at Gapfy, we spend our days building APIs, so we know what a good API client should feel like and how rarely one delivers it. Echo is our answer. It is quick, it is clear, and it treats testing as work that deserves real tools, not a cluttered tab you put off opening.
Built for the work, not for the demo
Echo is a desktop client for testing HTTP and gRPC APIs. It opens fast, it stays out of your way, and every request you send comes back readable, with the status, the timing, and the body laid out so you understand it at a glance. Organize your requests into collections, keep your environments tidy, and stop hunting for the call you made last week.
See the difference, side by side
The feature we are proudest of is the one we needed the most. Point a single request at two environments, your staging and your production for example, run them together, and Echo shows you both answers next to each other with every difference highlighted. The moment something behaves differently between environments, you see it plainly, instead of guessing.
Serious where it matters
Echo carries the things teams genuinely need and usually have to pay dearly for: shared workspaces, real access control, single sign on, and an audit trail you can stand behind. It signs in with your Gapfy account and sits comfortably beside the rest of the family. Enterprise care, without the enterprise theatre, because solid tools should never be a luxury.
Test your APIs the way they deserve
Echo is ready to download today. Bring clarity to your API work and let every request come back loud and clear.
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