What is Crypto Fear & Greed Index

Crypto Fear & Greed Index MCP Server is a service that provides real-time and historical data for the Crypto Fear & Greed Index, sourced from Alternative.me. It allows users to easily access and analyze the sentiment in cryptocurrency markets, indicating whether the market is experiencing fear or greed.

Use cases

This MCP server can be used by cryptocurrency traders and analysts to make informed decisions based on market sentiment. By accessing current index values, historical trends, and performing in-depth trend analysis, users can better understand market dynamics and potential price movements of cryptocurrencies like Bitcoin.

How to use

To use the Crypto Fear & Greed Index MCP Server, install it via Smithery or clone the repository from GitHub. After installation, users can query current index values and historical data by using specific commands or asking questions directly related to the index. The server is compatible with MCP clients, allowing for seamless integration.

Key features

Key features of this server include retrieving the current Fear & Greed Index, accessing historical index data, performing trend analysis, and providing prompt generation tools for data interpretation. It also supports tool-only versions for enhanced compatibility.

Where to use

This server can be integrated into various MCP-compatible applications, such as trading bots, portfolio management tools, or market analysis tools. It’s particularly useful for users of Claude Desktop and any other platforms that support the Model Context Protocol.

Crypto Fear & Greed Index MCP Server

A mcp server that provides real-time and historical Crypto Fear & Greed Index data, powered by the Alternative.me.

This server exposes resources and tools for fetching and analyzing the Fear & Greed Index, making it easy to integrate into MCP-compatible clients, including Claude Desktop.

Features

• Current Index: Retrieve the latest Fear & Greed Index value and classification.
• Historical Data: Fetch historical index values for a specified number of days.
• Trend Analysis: Analyze trends over time with statistics like average value and trend direction.
• Tool-Only Support: Includes tool versions of all resources for compatibility with tool-only MCP clients.
• Prompt Generation: Provides a prompt template for interpreting index values.

Resources

• fng://current. Current crypto Fear & Greed Index. Output:

Crypto Fear & Greed Index (as of 2025-03-15 00:00:00 UTC):
Value: 45
Classification: Fear

• fng://history/{days}. Historical Data of Crypto Fear & Greed Index.Output:

Historical Crypto Fear & Greed Index:
2025-03-15 00:00:00 UTC: 45 (Fear)
2025-03-14 00:00:00 UTC: 48 (Fear)
...

Tools

• get_current_fng_tool() -> str.

Current Index. Same as fng://current

• get_historical_fng_tool(days: int) -> str.

Historical Index Data. Same as fng://history/{days}

• analyze_fng_trend(days: int) -> str.

Index trend Analysis. Output:

Fear & Greed Index Analysis (30 days):
Latest Value: 45 (Fear) at 2025-03-15 00:00:00 UTC
Average Value: 47.3
Trend: falling
Data points analyzed: 30

Prompts

• interpret_fng

Index Data Interpretation.

Output:

Please interpret this Crypto Fear & Greed Index value and explain what it means for cryptocurrency markets (specifically Bitcoin): 45

Installation

Installing via Smithery

To install Crypto Fear & Greed Index for Claude Desktop automatically via Smithery:

npx -y @smithery/cli install @kukapay/crypto-feargreed-mcp --client claude

Clone the repository:

git clone https://github.com/kukapay/crypto-feargreed-mcp.git
cd crypto-feargreed-mcp

Install for Claude Desktop

mcp install main.py --name "CryptoFearGreed"

Then enable it in your Claude Desktop configuration.

For other clients, add a server entry to your configuration file:

"mcpServers": { 
  "crypto-feargreed-mcp": { 
    "command": "uv", 
    "args": [ 
      "--directory", "/your/path/to/crypto-feargreed-mcp", 
      "run", 
      "main.py" 
    ]
  } 
}

Examples

After installation, ask:

• “What’s the current Crypto Fear & Greed Index?”
• “Show me the Crypto Fear & Greed Index trend for the last 30 days.”

Claude will automatically call the appropriate tools and provide responses.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Acknowledgments

• Built with MCP Python SDK.
• Data provided by Alternative.me Fear & Greed Index API.