curl --request GET \
  --url https://x402.20.208.46.195.nip.io/api/developer/keys

{
  "ok": true,
  "keys": [
    {
      "id": "<string>",
      "label": "<string>",
      "key_prefix": "<string>",
      "scopes": [
        "<string>"
      ],
      "created_at": "2023-11-07T05:31:56Z",
      "last_used_at": "2023-11-07T05:31:56Z",
      "revoked_at": "2023-11-07T05:31:56Z"
    }
  ]
}