@sthuck I'm working on an alternative in this space called Fern. Like gRPC, you define your schema and use it to generate client libraries + server code. Fern integrates with FastAPI/Express/Spring and generates clients in Python, Typescript, and Java.

Checkout out this demo: https://www.loom.com/share/42de542022de4e55a1349383c7a465eb. Feel free to join our discord as well: https://discord.com/invite/JkkXumPzcG.