Напиши @BotFather
UPD: Неверно понял вопрос.
Теперь пару выдержек из API.
All queries to the Telegraph API must be served over HTTPS and should be presented in this form:
https://api.telegra.ph/%method%. createAccount
Use this
method to create a new Telegraph account. Most users only need one account, but this can be useful for channel administrators who would like to keep individual author names and profile links for each of their channels. On success, returns an Account object with the regular fields and an additional access_token field.
access_token (String)
Optional. Only
returned by the createAccount and revokeAccessToken method. Access token of the Telegraph account.
Короче, отправляй запрос вида:
Sample request
https://api.telegra.ph/createAccount?short_name=Sa...
Где меняешь Sandbox и Anonymous на свои данные.
В ответ получишь токен.