Your plan and remaining budgets

Returns your plan and what is left of it: tier, how far back your history calls reach (historyDays, or historyAllArchive: true when you can read everything we hold), the earliest day you may ask for, and two budgets: rateLimit, the request limit every call counts against, and historyRateLimit, the hourly history budget. Each budget has unmetered; when it is false, it also has limit, windowSeconds, remaining and reset, the same figures as the RateLimit headers. Use it on an unmetered plan, which gets no such headers, or to check your history budget without spending it. The call counts as one ordinary request and needs an API key.