# Plans and limits

> How daily and monthly limits, per-call caps and limit errors work.

Every plan has **hard limits**: tool calls per UTC day and per UTC calendar month, plus per-call
caps on rows and areas. There are no credits and no overage charges. See [pricing](/pricing) for
the numbers.

- Each tool call counts as one call, whether you use OAuth or an API key.
- When a limit is reached, tools return an error explaining which limit and when it resets. Your
  assistant will usually relay this to you.
- We email you at 80% and 100% of your monthly limit.
- Usage is visible in [Dashboard → Usage](/app/usage).