Your payment channel
Nodi pays for each model request from a channel to one operator. Klimper funds it once with XCH when you approve; each request moves a little to the operator, and what is left comes back to your wallet when the channel closes. This page only shows it.
The channel key is not in this browser and never comes here: it stays in the Nodi daemon or the desktop app on your computer. Open the channel there; this page cannot.
Open the channel on your computer with:
nodi channel open
nodi channel open --amount <XCH> --reward <your address>