4Cx API

The 4Cx public API exposes the platform endpoints such as: markets, take plays, place offers, and read your positions in real time.

Authentication

Send your auth token in the Authorization header. No Bearer prefix — the raw token only.

Authorization: <your-token>

After Log in, copy user.auth from the response and send it as the Authorization header on every subsequent request.

Production base URL:

https://api.4cx.io

All REST paths below are relative to this host.