A open-source Telegram bot that you can create and manage alerts about the cryptocurrency world. You can find it at https://t.me/CryptocurrencyAlertsBot.
See here.
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BTC: 33TwXHzMTpSNMJZ4JcwExLExsF3BshBUPE
ETH: 0xa772c6bab9d175256ff635843c461d3f65a7236b
LTC: M9adpiNQXsbEf7j5ZVnuDCGNoXT7oMW3vd