mcp-market-data

Instructions

Implementation Reference

• index.js:149-160 (handler)

  The getFearGreed function fetches the latest crypto Fear & Greed Index from the API.

  async function getFearGreed() {
    try {
      const data = await fetch('https://api.alternative.me/fng/?limit=7');
      return data.data.map(d => ({
        value: parseInt(d.value),
        label: d.value_classification,
        date: new Date(d.timestamp * 1000).toISOString().split('T')[0],
      }));
    } catch (e) {
      return { error: 'Fear & Greed API unavailable' };
    }
  }

• index.js:310-314 (registration)

  Definition of the 'feargreed' tool in the MCP server tool list.

  {
    name: 'feargreed',
    description: 'Crypto Fear & Greed Index — market sentiment indicator. Shows last 7 days.',
    inputSchema: { type: 'object', properties: {} }
  }

• index.js:354-355 (handler)

  The tool call handler for 'feargreed' calls the getFearGreed function.

  case 'feargreed':
    return await getFearGreed();