This API lets you fetch your rank dynamically, typically for making !rank command in your Twitch/YouTube stream. Supports StreamElements, Nightbot, Fossabot and more!
Visit Chat-Valorant-Rank Generator and select the options as per your requirements and press Generate. This will create a link for you to copy and use in whichever bot's custom command you want to.
Please double check the URL you are using. If everything works fine on your end then check the status of the backend API here. If that is also up then create an issue with details about the URL you used and what exactly you are facing.
@Henrik-3 for creating unofficial-valorant-api