This skill can query a paid customs-data API, but it also handles API keys, account billing actions, and automatic version checks that users should review before installing.
Install only if you are comfortable letting the skill contact UpKuaJing, use or create an UPKUAJING_API_KEY, store that key in a plaintext ~/.upkuajing/.env file, check account balances, create top-up payment URLs, and perform a daily provider version check. Confirm any paid query or top-up action before proceeding, and consider managing the API key through your own secret-storage process instead of the skill-created .env file.