MonteWalk

Instructions

Gets the current price of a cryptocurrency.

Args:
    coin_id: CoinGecko ID (e.g., 'bitcoin', 'ethereum', 'solana')
    vs_currency: Currency to compare against (default: 'usd')
    
Returns:
    Dictionary with price information

Implementation Reference

• tools/crypto_data.py:15-49 (handler)

  The handler function that implements the get_crypto_price tool. It queries the CoinGecko API for the current price, market cap, 24h volume, and change percentage for a given cryptocurrency ID against a specified currency.

  def get_crypto_price(coin_id: str, vs_currency: str = "usd") -> Dict[str, Any]:
      """
      Gets the current price of a cryptocurrency.
      
      Args:
          coin_id: CoinGecko ID (e.g., 'bitcoin', 'ethereum', 'solana')
          vs_currency: Currency to compare against (default: 'usd')
          
      Returns:
          Dictionary with price information
      """
      try:
          data = cg.get_price(
              ids=coin_id,
              vs_currencies=vs_currency,
              include_24hr_change=True,
              include_market_cap=True,
              include_24hr_vol=True
          )
          
          if not data or coin_id not in data:
              return {"error": f"Coin '{coin_id}' not found"}
              
          coin_data = data[coin_id]
          return {
              "coin": coin_id,
              "price": coin_data.get(vs_currency, 0),
              "market_cap": coin_data.get(f"{vs_currency}_market_cap", 0),
              "24h_volume": coin_data.get(f"{vs_currency}_24h_vol", 0),
              "24h_change": coin_data.get(f"{vs_currency}_24h_change", 0),
              "currency": vs_currency.upper()
          }
      except Exception as e:
          logger.error(f"CoinGecko error for {coin_id}: {e}")
          return {"error": str(e)}

• server.py:415-418 (registration)

  Registration of the get_crypto_price tool (along with related crypto tools) to the MCP server using the register_tools helper, which applies the @mcp.tool() decorator.

  register_tools(
      [get_crypto_price, get_crypto_market_data, get_trending_crypto, search_crypto],
      "Cryptocurrency"
  )

• app.py:295-302 (registration)

  Listing of get_crypto_price in the tools_map for the Gradio UI toolbox, importing from tools.crypto_data.

  "Crypto": [
      get_crypto_price,
      get_crypto_market_data,
      get_trending_crypto,
      search_crypto,
      get_crypto_resource,
      crypto_market_update,
  ],