# api_key_invalid

**HTTP status:** 401 (Unauthorized)

**Title:** Invalid API key

## Cause

Missing, invalid or revoked API key. Send it as Authorization: Bearer <key>.

## How to fix it

Send an API key in the Authorization header as `Bearer <key>`.

Set the parameter named below and send the request again.

Parameter: `Authorization`

Every error carries `requestId` and the `Request-Id` header. Send it when you write to support.

[All error codes](/errors)