Native gRPC and Connect client

A beautiful gRPC & Connect client, built for Apple platforms.

A fast, native application for working with gRPC and Connect services. Built with a Rust core and SwiftUI, it helps API developers keep their workflow clear and fast. Get greatRPC for free on the App Store.

Download on the App Store
greatRPC showing a Connect request and response in a native macOS workspace.

Features

It's got the basics covered…

Request / Response

Call gRPC and Connect services, then inspect responses at the desired level of detail. JSON or UI-driven, up to you.

Bidi-streaming support

Work with streaming requests, responses, or bidirectional streams with granular control and timings.

Variables across requests

Reuse values between requests to keep repeated testing tidy, consistent, and quick to adapt.

Because things were better back then…

Time travel included.

greatRPC history view showing recent calls, timings, and response details.

There's more

Thoughtful details for everyday API work.

Reflection

Start talking to servers that support reflection without chasing down local proto files.

SSL

Connect securely to production, or bring local certificates for development and testing.

Project Files

Keep configuration, requests, variables, and history together in a single project file.