---
title: PropelAuth - API Key Authentication
description: Protect your customer's requests with authentication for your API.
canonical_url: https://www.propelauth.com/api-key-authentication
---

# Authentication for your APIs

Giving your customers API access? Don't waste time on a bunch of boilerplate - let PropelAuth handle it for you.

## No surprises allowed

### Set your own rate limits

Whether it’s for preventing abuse or just limiting some of your more… excitable customers, rate limits can be enforced on both personal and organization API keys.

_Image showing an example of an API key rate limiting UI_

### Expiration Notifications

All good things eventually come to an end, like that API Key your customer generated a year ago and forgot about. Set up proactive notifications to alert your customers that their keys are about to expire so they don't lose access to your product, even for a minute.

_Image showing an example of an API key expiration UI_

### Detailed usage metrics

Gain an understanding of how actively your API keys are being used. Get a breakdown per user, per organization, or per individual key.

_Image showing a 3 line graphs depicting API key usage_

## Frequently asked questions

### When do API keys expire?

API keys can be set to expire after a certain amount of time or never expire. API keys can also be tied to a user or organization, and will automatically expire if the user/org is blocked or deleted.

### Can I set rate limits on API keys?

Yes - you can set rate limits on API keys to prevent abuse or limit usage. Rate limits can be set on both personal and organization API keys.

### I have less frequently asked questions...

Reach out to us at support@propelauth.com.

## Get started

Sign up: https://auth.propelauth.com/en/signup

Request a demo: https://calendly.com/andrew-propelauth/propelauth-integration-chat