The third-party API is available to enterprise users with a private label and unique subdomain. To use it you will need a primary API key with Service Account permissions provided by ChainLetter.io.
To request a key, please use our support contact form.
Once you have your primary key you can use it to access API key restricted routes in your subdomain’s API. This api is found at https://<yoursubdomain>.chainletter.io/api/v1/docs .