The Supervisor is BYOK — bring your own key. Your two model picks decide which providers you need; both on the same provider means one key is all you fill.
Open the EA inputs → Group 1. Each model pick belongs to one provider.
Both defaults sit on OpenAI — so out of the box you only need one OpenAI key. Different providers on 1.1 and 1.2 means one key each.
Sign up, open the key page, click create — then copy it right away. Most providers show the key only once.
Inputs dialog → Group 2 "API Keys" → the field matching your provider.
Tick "Allow WebRequest for listed URL" and add the endpoint for every provider you actually use.
On a healthy start the Supervisor prints the magic numbers it discovered and the mode it runs in — SHADOW on defaults.
A status comment in the chart's top-left corner confirms at a glance that it's running and in which mode.
Nothing runs until every selected model has its key. Once the red line is gone, the Supervisor starts its watch cycle.
Your keys stay with you. They live in the EA's input fields inside your MT5 terminal and are sent only to the provider endpoint you whitelisted — they are never uploaded to eatrading.ai.