curl --request DELETE \
  --url https://api.natural.co/api-keys/{keyId} \
  --header 'Authorization: Bearer <token>' \
  --header 'Idempotency-Key: <idempotency-key>'

{
  "data": {
    "type": "apiKey",
    "id": "apy_550e8400e29b41d4a716446655440000",
    "attributes": {
      "apiKeyPrefix": "sk_ntl_prod_sxHp_FRoRTnDEmEH",
      "name": "Production Backend",
      "scopes": [
        "payments.read",
        "payments.create"
      ],
      "environment": "prod",
      "status": "REVOKED",
      "createdAt": "2026-01-04T15:30:00Z",
      "lastUsedAt": null,
      "revokedAt": "2026-01-05T10:00:00Z",
      "createdBy": "usr_550e8400e29b41d4a716446655440000",
      "revokedBy": "usr_550e8400e29b41d4a716446655440000"
    },
    "relationships": {
      "party": {
        "data": {
          "type": "party",
          "id": "pty_7c9e6679e29b41d4a716446655440001"
        }
      }
    }
  },
  "meta": {
    "deleted": true
  }
}