Cryptocurrency Price Bot for WeChat Groups Using Python Wechaty

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In today’s fast-paced digital world, real-time information is key — especially when it comes to cryptocurrency prices. Traders and enthusiasts often rely on instant updates to make informed decisions. One powerful way to deliver timely crypto price data is through a WeChat group bot that responds to user queries with up-to-the-minute market information.

This article walks you through building a cryptocurrency price quotation robot for WeChat groups using the Python Wechaty library. With just a few lines of code, you can create an intelligent bot that listens for coin symbols in group chats and automatically replies with accurate, formatted pricing data — all while mentioning the person who requested it.

Whether you're a developer exploring chatbot automation or a crypto enthusiast looking to enhance your WeChat community experience, this guide offers a practical, step-by-step implementation.

Core Features of the Crypto WeChat Bot

The bot delivers the following core functionalities:

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How It Works: Architecture Overview

At its core, the bot uses python-wechaty — a Python SDK for WeChat automation that allows developers to build bots capable of interacting with contacts, rooms (groups), and messages programmatically.

When a user types a cryptocurrency symbol (like btc) or mentions the bot with @Robot btc, the system triggers a chain of actions:

  1. Message is captured by the on_message event listener.
  2. The bot extracts the coin symbol.
  3. Validates if the coin is supported.
  4. Fetches current market data.
  5. Sends back a rich-text message with price details, including USD/CNY values, 24h change, market cap, and more.

Step-by-Step Implementation

1. Project Setup & Configuration

Before running the bot, configure essential parameters in the settings file:

class Notice:
    EVENT_NAME = 'notice_python'
    TOKEN = '{your IFTTT TOKEN}'
    KEY = '{your notice key}'

class Zengr:
    APP_CODE = '{your app code}'

class PATH:
    PATH_JSON = path_root + '/coin_list.json'

class WECHAT:
    TOKEN = '{your wechaty token}'

class CoinGK:
    PATH_JSON = path_root + '/conin_list_cgk.json'

Key Components Explained:

⚠️ Note: The default Wechaty token is from the official free version, which only supports a 7-day trial. For long-term use, consider contributing to Wechaty or purchasing a license. Alternatively, explore the UOS web protocol for login-free access: Use Web Protocol Guide

2. Core Message Handling Logic

Here’s the main message processing function:

async def on_message(msg: Message):
    text: str = msg.text()
    room: Optional[Room] = msg.room()
    
    if text.startswith('@Robot'):
        rev_str = text.replace(' ', '')
        symbol = rev_str.split(' ')[-1]
    else:
        symbol = text

    talker = msg.talker()
    
    if get_conin_seq(symbol) > 0:
        await room.say(get_price(symbol), mention_ids=[talker.contact_id])

This function:

3. Price Data Formatting Function

def get_price(symbol):
    symbol = symbol.upper()
    idx = get_conin_seq(symbol)
    result = get_coin(idx)
    
    ret = '\n' \
          '【名称】 ' + result['data'][0]['fullname'] + '-' + result['data'][0]['name'] + '\n' \
          '【USD价格】 ' + '$' + str(result['data'][0]['current_price_usd']) + '\n' \
          '【CNY价格】 ' + '¥' + str(result['data'][0]['current_price']) + '\n' \
          '【全球市值】 ' + '$' + str('%.2f' % (result['data'][0]['marketcap']/100000000)) + '亿\n' \
          '【24H涨幅】 ' + str(result['data'][0]['change_percent']) + '%\n' \
          '【24H换手】 ' + str(result['data'][0]['turnoverrate']) + '%\n\n' \
          + str(time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())) + '\n' \
          '数据来源：非小号'
    return ret

This returns a clean, readable message containing:

Currently supports the top 500 coins listed on Feixiaohao.

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4. Running the Bot

To launch your bot:

python wechat/wechaty.py

After scanning the QR code to log in, add the bot to any WeChat group. Users can then query prices by simply typing a symbol like btc or @Robot eth.

Within seconds, the bot responds with structured pricing info — making it perfect for trading groups, investor communities, or educational chats.

Best Practices & Considerations

While powerful, this bot operates within certain constraints:

Frequently Asked Questions (FAQ)

Q: Can I use this bot on personal WeChat accounts?
A: Yes, as long as your account can join groups and send messages. However, avoid aggressive automation to prevent account restrictions.

Q: Is the Feixiaohao API documented?
A: Not officially. This project reverse-engineers public endpoints. Always verify response formats and handle errors gracefully.

Q: Can I switch to CoinGecko or Binance API?
A: Absolutely. You can modify get_coin() to pull data from Binance, OKX, or CoinGecko APIs for broader coverage and reliability.

Q: Does this work on Windows, macOS, and Linux?
A: Yes — since it's Python-based, it runs cross-platform. Ensure Python 3.8+ and dependencies are installed.

Q: How do I extend support beyond 500 coins?
A: Update the coin_list.json file with additional symbols or connect to a dynamic API that supports full listings.

Q: Can I deploy this bot 24/7?
A: Yes — run it on a VPS or cloud server with persistent internet. Use process managers like pm2 or supervisor for uptime.

Final Thoughts

Building a cryptocurrency price bot for WeChat groups enhances communication efficiency and brings real-time financial intelligence directly into social conversations. Powered by Python Wechaty, this solution demonstrates how minimal code can yield high utility — ideal for developers aiming to automate information delivery in private communities.

With proper configuration and responsible usage, this tool becomes a valuable asset for crypto traders, educators, and community managers alike.

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Keywords: cryptocurrency price bot, Python Wechaty, WeChat group bot, real-time crypto prices, crypto quotation robot, automated messaging, blockchain notification system