> ## Documentation index
> Fetch the complete documentation index at: https://upstash.com/docs/llms.txt
> Ask it with GET https://upstash.com/docs/ask?q=<keywords or question>. Short keywords rank best.
> Use these to discover all available pages before exploring further.
> Feature requests: https://upstash.com/docs/common/help/feature-requests.md lists what users asked for and how to vote for a request or add one.
> Page rating: `GET https://upstash.com/docs/feedback?path=/docs/devops/developer-api/authentication&helpful=true` (or `false`) records whether this page helped. An optional `comment` (URL-encoded, at most 500 characters) says what was missing or wrong. It is anonymous and needs no key. Comments hold no code, secrets or personal data.

# Authentication

> Authentication for the Upstash Developer API

The Upstash API requires API keys to authenticate requests. You can view and
manage API keys at the Upstash Console.

Upstash API uses HTTP Basic authentication. You should pass `EMAIL` and
`API_KEY` as basic authentication username and password respectively.

With a client such as `curl`, you can pass your credentials with the `-u`
option, as the following example shows:

```curl
curl https://api.upstash.com/v2/redis/databases -u EMAIL:API_KEY
```

Replace `EMAIL` and `API_KEY` with your email and API key.