# API key

An API key is the secret string that identifies your account in API calls; it is created in the dashboard and can be rotated at any time.

## What is API key?

An API key is the secret string that identifies your account in API calls; it is created in the dashboard and can be rotated at any time.

## Keeping it safe

- Never put it in client-side code or public repositories.
- Rotate it if it leaks; the old key stops instantly.
- Use one key per tool so you can revoke one without touching the others.

Source: https://smsnitro.com/glossary/api-key