Egor, is your project on GitHub?
Let's collaborate. My trader code is at https://github.com/bobbyjim/Trader, and allows the player to navigate through Joshua Bell's API, generating passenger and trade data per the T5 Core Rules.
It's on Github. The back-end API is at https://github.com/egor045/egor045_trav_api, while the web UI is at https://github.com/egor045/egor045_trav_client
The API is globally accessible - I'm happy for people to develop their own front ends. I have a couple of changes to wrap in, then I'll publish the API docs.
These should really be in Makhidkarun - I'll move them there.