API keys and IFTTT
Open the menu, choose Settings, then API.
IFTTT is available on every plan. Connect it from that screen. Disconnecting stops Applets that use Bookmer. Additional API keys for your own scripts are part of PRO and ULTRA. Send the key as a Bearer token in the Authorization header. The same screen links the OpenAPI file.
Do not share a key. Remove it from this screen if it leaks.