One of the providers for buying cryptocurrency in Telegram's built-in Gram Wallet is Walt (_ex. Wallet_).

While analyzing how Onramp works, I was able to obtain the session data that Telegram creates when buying cryptocurrency with fiat. The server response lists _wallet_ as the provider and _telegram_wallet_ as the partner.

A separate session is created for the operation, after which Telegram opens [@walt](https://t.me/walt) with the special parameter "_isOnramp: true_".

Currently, you can buy:
• Gram
• USDT on the TON network

The system also returns a list of available fiat currencies and checks supported currencies, payment methods, limits, and whether the operation is available in the user's region.

[@telelakel](https://t.me/telelakel)