Crypto Sentiment MCP Server is an MCP server that provides cryptocurrency sentiment analysis and social metrics to AI agents and automated workflows. It leverages Santiment's aggregated social media and news data to track market mood and detect emerging trends. The server exposes a set of tools to query sentiment balance, social volume, social dominance, and trending words for crypto assets. Core capabilities include retrieving the average sentiment balance (positive vs negative) over a defined period; fetching the total social media mentions for an asset; detecting significant spikes or drops in social volume relative to previous averages; identifying top trending words in crypto discussions; and measuring the percentage of discussions dominated by an asset in crypto media. Prerequisites include Python 3.10+ and a Santiment API key. Installation instructions show cloning the repository and configuring a client with the SANTIMENT_API_KEY environment variable. Example inputs illustrate queries such as sentiment for Bitcoin over the last week, Ethereum social volume over 5 days, threshold-based social shift alerts, top 3 trending words over 3 days, and Ethereum's social dominance over a 7-day window. The server is intended for MCP-compatible clients.