Show HN: Alpha Vantage MCP – Enable your LLM tools with real-time market data (mcp.alphavantage.co)

Alpha Vantage has released an MCP (Model Context Protocol) server that exposes its full suite of real-time and historical market APIs to LLMs and agentic workflows. By adding the MCP server URL (remote: https://mcp.alphavantage.co/mcp?apikey=YOUR_API_KEY or running locally with uvx av-mcp YOUR_API_KEY) to tools like Claude, Cursor, VS Code, and custom agents, developers can grant LLMs direct access to tick-level and time-series data, options chains, news sentiment, earnings transcripts, fundamentals, forex, crypto, commodities, economic indicators and 70+ technical indicators. The MCP server is open-source on GitHub and supports category filtering via query parameters so agents only see relevant tool endpoints. Technically, each MCP “tool” maps to an Alpha Vantage API endpoint (e.g., TIME_SERIES_INTRADAY, REALTIME_BULK_QUOTES, REALTIME_OPTIONS, NEWS_SENTIMENT, COMPANY_OVERVIEW, MACD, RSI, VWAP, TREASURY_YIELD, etc.), plus utility endpoints like PING. This makes it straightforward to integrate live market data into agentic trading workflows, chatbots, and fintech apps with minimal glue code. The release is significant because it standardizes how LLMs consume market data, enabling more reliable, auditable tool calls for research and automated strategies—though developers should account for API rate limits, latency, and regulatory/trading risk when deploying production decisioning agents.