For the elderly, instant messengers can be a media for them to interact with other people so that they don’t feel lonely. However, the elderly often find it difficult to interact with big instant messengers such as LINE, Whatsapp and Telegram, which is why an instant messenger designed specifically for the elderly is needed. Unfortunately, there are several limitations in which the messages can only be exchanged within the same instant messenger. To tackle this problem, a middleware that will be used to connect this instant messaging for the elderly with Telegram messenger. The middleware is developed with API and Webhook method. Other than that, Telegram bot is used so that messages can be sent out from Telegram. Through the testing done, the middleware developed has successfully sent out messages from Telegram to the instant messenger for elderly and vice versa.