Use U301's short link service API to batch shorten long URLs. Custom domains are supported, with up to 200 URLs per request. You should provide as "{ urls: []}" Current ShortLink domain is u301.co URLItem Supported Parameters areurl: required, the URL to be shortened slug: optional, a custom slug for the shortened URL, the final shortened URL will be https://u301.co/ if you leave it empty, random slug will create expiredAt: optional, the expiration date for the shortened URL, e.g. 2023-01-01T00:00:00Z password: optional, a password for the shortened URL comment: optional, a comment, displayed on the dashboard