Heimdall MCP: Add OpenTelemetry tracing to any MCP server without touching its code

Heimdall-MCP is a powerful tool designed to trace and record interactions within the MCP (Management Console Protocol) framework, providing developers with detailed insights into how their applications are being used. Here's an overview of its features and usage:

Key Features

1. Observability: Heimdall-MCP records all interactions between clients and servers without modifying or blocking them.
2. Transport Mixing: It can bridge different transport protocols (e.g., stdio, HTTP, SSE) transparently.
3. Custom Interceptors: Allows for custom logic to be applied before storing data, such as redacting sensitive information.
4. No Native Dependencies: Runs entirely in Node.js without requiring native modules or compilation steps.

Installation

To get started with Heimdall-MCP, you can install it globally using npm:

sh
 
1npm install -g @cardor/heimdall-mcp

Usage as a Command-Line Tool

Heimdall-MCP can be used as a command-line tool to wrap existing MCP servers. For example, if your server is running locally and listening on stdio, you can use Heimdall-MCP to trace its interactions:

sh
 
1heimdall-mcp
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3[Read the full article at DEV Community](https://dev.to/enmanuelmag/heimdall-mcp-add-opentelemetry-tracing-to-any-mcp-server-without-touching-its-code-4ae6)
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