Crypto Price Alert Bot — Telegram Bot Source Code (Python)

A complete, ready-to-run Telegram bot that tracks cryptocurrency prices and sends alerts when targets are hit. Built with Python and aiogram. Uses the free CoinGecko API — no keys, no registration required.

✨ WHAT THE BOT DOES

• 📈 Price alerts — notify when BTC reaches $50,000

• 📊 Percentage alerts — notify when price moves +5% or -10% from current

• 🔁 Recurring alerts — don't delete after firing, with built-in cooldown

• 🌐 Bilingual — Russian and English, user picks language on first /start

• 🎛 Inline buttons & step-by-step dialogs — no need to memorize commands

• ⚡ Quick start — 3 clicks from /start to a working alert

• 💾 SQLite — database created automatically

• 🐳 Docker — one-command deployment

• 🔄 DB migrations — old databases upgrade automatically

📦 WHAT YOU GET

• Full source code (15 files, Python)

• README.md with 3-step launch instructions

• .env.example — settings template

• Dockerfile + docker-compose.yml

• LICENSE.md

• Free CoinGecko API — no keys needed

🚀 HOW TO RUN (3 STEPS)

1. Get a bot token from @BotFather in Telegram

2. Paste it into the .env file

3. Run: python bot.py (or docker compose up)

Detailed instructions are in README.md inside the archive.

🎯 WHO THIS IS FOR

• Beginners learning Telegram bots with Python

• Developers who need a ready-made base to customize

• Crypto traders who want automated price notifications

⚙️ TECHNICAL DETAILS

• Language: Python 3.10+ (3.11–3.13 recommended)

• Libraries: aiogram 3.x, aiosqlite, aiohttp, python-dotenv

• Database: SQLite (auto-created)

• API: CoinGecko (free, no key)

• Deployment: local, VPS, or Docker

📋 AVAILABLE COMMANDS

/start — greeting and menu

/menu — full menu

/language — change language (RU/EN)

/track BTC 50000 — alert when price is reached

/track ETH 3000 up — only on rise

/track BTC +5% — on +5% growth

/track BTC -10% repeat — on -10% drop, recurring

/list — show active alerts

/remove BTC — delete alert

/help — help

📄 LICENSE

Buyer may use the code for personal and commercial purposes, modify it, and deploy for their own projects and clients. Reselling the source code as a standalone product is prohibited.

❌ WHAT'S NOT INCLUDED

• Bot token (get yours from @BotFather)

• Setup on your server

• Technical support after purchase (can be discussed separately)

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Questions? Message me before purchase.