There's a Go port available over gRPC (and gRPC-Web, and the Connect RPC protocol) at https://demo.connect.build. The code (as well as sample clients) are at https://github.com/bufbuild/connect-demo. You can also talk to our Eliza implementation with cURL:

curl --header 'Content-Type: application/json' --data '{"sentence": "I feel happy."}' https://demo.connect.build/buf.connect.demo.eliza.v1.ElizaSe...

I love that this little bit of computing history is getting some love :)