# API Keys

ALL From API Keys

What Is an API Key and How to Use It Securely?

API keys are used to track and control who is using an API and how they’re using it, as well as to authenticate and authorize applications — similar to how usernames and passwords work.

Binance, OKX, and KuCoin Advise 3Commas Users to Reset API Keys After Database Leak

3Commas confirmed the authenticity of a leak of its users’ API key database prompting Binance, OKX and KuCoin, to advise their users to reset their API keys and whitelist IP addresses.