# key_invalid

> The endpoint's key is revoked, expired or no longer usable, so the endpoint cannot be turned on.

**Key not usable** · HTTP 409

## What it means

The endpoint's key is revoked, expired or no longer usable, so the endpoint cannot be turned on.

## What to do

Create the endpoint again with an active key.

## Example

```json
{
  "type": "https://api.bymundi.com/problems/key_invalid",
  "title": "Key not usable",
  "status": 409,
  "detail": "The endpoint's key is revoked, expired or no longer usable, so the endpoint cannot be turned on.",
  "code": "key_invalid",
  "requestId": "req_…"
}
```

How to read any error: [Errors guide](https://api.bymundi.com/docs/guides/errors.md).