n8n Coingecko Tool MCP Server - All 9 Operations

This n8n workflow acts as a Model Context Protocol (MCP) server, designed to expose a "Coingecko Tool" to AI models. It simplifies the process of integrating Coingecko data retrieval capabilities into AI applications by providing a standardized interface.

What it does

This workflow serves as a foundational MCP server. While the current JSON only defines the trigger, in a complete implementation, it would typically:

1. Listens for MCP Requests: The MCP Server Trigger node waits for incoming requests from an AI model or another system adhering to the Model Context Protocol. These requests would specify the desired Coingecko operation (e.g., get price, list coins).
2. Processes Coingecko Operations: (Implicit in the name "Coingecko Tool - All 9 Operations") It would contain logic to handle various Coingecko API calls based on the incoming MCP request. This would involve making HTTP requests to the Coingecko API.
3. Returns Results: After executing the Coingecko operation, the workflow would format the results according to the MCP specification and send them back to the requesting AI model.

Note: The provided JSON specifically shows the MCP Server Trigger node, indicating its role as the entry point for such a system. The actual implementation of the "9 operations" would reside in subsequent nodes connected to this trigger.

Prerequisites/Requirements

• n8n Instance: An active n8n instance to run this workflow.
• Coingecko API: While not explicitly configured in this minimal JSON, a connection to the Coingecko API would be required for the full functionality. No API key is typically needed for public Coingecko endpoints.
• AI Model/Application: An AI model or application capable of making requests to an MCP server and understanding its responses.

Setup/Usage

1. Import the workflow:
   • In your n8n instance, go to "Workflows".
   • Click "New" -> "Import from JSON".
   • Paste the provided JSON content and click "Import".
2. Activate the workflow:
   • Ensure the workflow is active by toggling the "Active" switch in the top right corner.
3. Configure subsequent nodes (if implementing operations):
   • Connect additional nodes to the MCP Server Trigger to implement the specific Coingecko operations. This would typically involve:
     • Using Switch nodes to route requests based on the operation specified in the MCP payload.
     • Using HTTP Request nodes to call the Coingecko API.
     • Using Set or Code nodes to format the responses back into an MCP-compatible format.
4. Expose the MCP Server: The MCP Server Trigger will automatically create an endpoint. You will need to provide this endpoint URL to your AI model or application so it can make requests.