Connect’s creators call it a “better gRPC”, but I am in no position to evaluate that claim so I will leave it as an exercise for you. Here’s what they have to say about it:
Connect is production-ready — focused, simple, and debuggable — and it’s fully compatible with gRPC clients and servers. If you’re frustrated by the complexity and instability of today’s gRPC libraries, we think you’ll find Connect a breath of fresh air.
Go library out now. Connect for TypeScript is “coming soon”