# Get an API key

`GET /v1/api-keys/{key_id}` · permission `api-keys:read`

Returns the metadata of one API key. The raw key is never returned.

`last_used_at` is written at most once a minute, so it can lag the last request by up to a minute; `last_used_ip` is the /24 (IPv4) or /48 (IPv6) network of that request, never the full address. The environment receives an `api_key.expiry_warned` event 30, 7 and 1 days before `expires_at` (once per threshold; revoked and rotating keys get none).

## Request

| Parameter | In | Description |
|---|---|---|
| `key_id` | path | API key id (`key_…`). |

## Response

`200 OK`. The key object.

```json
{
  "id": "key_0000000000000000000000001z",
  "name": "ci",
  "type": "restricted",
  "permissions": ["users:read"],
  "allowed_cidrs": [],
  "last4": "xxxx",
  "created_by": "key_…",
  "created_at": "2026-10-01T10:00:00Z",
  "expires_at": "2027-10-01T10:00:00Z",
  "last_used_at": null,
  "last_used_ip": null,
  "rotated_from": null,
  "revoked_at": null,
  "revoke_reason": null
}
```

## Errors

| HTTP | `code` | When |
|---|---|---|
| 401 | `unauthenticated` | The key is missing, invalid or revoked. |
| 403 | `insufficient_permissions` | The key lacks the required permission. |
| 404 | `not_found` | The key does not exist in this environment. |

## Example

```bash
curl https://api.eu.keenauth.com/v1/api-keys/key_0000000000000000000000001z \
  -H "Authorization: Bearer $KEENAUTH_SECRET_KEY"
```