curl --request GET \
  --url https://cloud.onyx.app/api/tool/openapi \
  --header 'Authorization: Bearer <token>'

[
  {
    "id": 123,
    "name": "<string>",
    "description": "<string>",
    "definition": {},
    "display_name": "<string>",
    "in_code_tool_id": "<string>",
    "custom_headers": [
      "<unknown>"
    ],
    "passthrough_auth": true,
    "mcp_server_id": 123,
    "user_id": "<string>",
    "oauth_config_id": 123,
    "oauth_config_name": "<string>",
    "enabled": true,
    "chat_selectable": true,
    "agent_creation_selectable": true,
    "default_enabled": false
  }
]