Use the account balance endpoints in the API Manual or check your dashboard for key-level and account-level balance information.
Yes. It is recommended to separate keys by environment or business system so usage is easier to monitor and rotate.
Disable the key immediately, issue a new one and rotate all affected services.
Collect the request time, endpoint, model ID, request ID if available and the returned error response before contacting your service channel.
Query current API key balance and usage.
Query overall account-level balance and usage.