We built an MCP server that connects Claude to real-time crypto data from 5 major exchanges. The Model Context Protocol (Anthropic's open standard) lets the AI make actual API calls instead of relying on training data. Users can compare prices, spot arbitrage, track portfolios, and generate reports through natural language — no code needed. Supports both stdio (Claude Desktop/Code) and HTTP/SSE for web clients. Would love to hear feedback from the HN community.