Returns the current account credit balance for the authenticated user.
Authenticate via HTTP Basic with your account username and API token. Examples use an explicit 'Authorization: Basic <base64(username:token)>' header; 'curl -u username:token' is equivalent. For sandbox, append "-test" to your username and use your sandbox token on api.dev.name.com.
A successful response.
Balance is the current account balance in USD.
103.35