OpenTelemetry Documentation MCP Server

Model Context Protocol (MCP) server for OpenTelemetry Documentation

This MCP server provides tools to access OpenTelemetry documentation and search for content using Google Custom Search.

Acknowledgements

This project is based on aws-documentation-mcp-server by Amazon Web Services, licensed under the Apache License 2.0.

Features

• Read Documentation: Fetch and convert OpenTelemetry documentation pages to markdown format
• Search Documentation: Search OpenTelemetry documentation using Google Custom Search

Prerequisites

Required Components

• Docker installed on your system
• Internet access to pull dependencies and access OpenTelemetry documentation

Google API Key Setup

To use the search functionality, you must obtain a Google API key:

1. Visit the Google Cloud Console (https://console.cloud.google.com/apis/credentials)
2. Create a new API key for the Custom Search API
3. Add this API key to your MCP configuration as shown in the installation section

Without a valid Google API key, the search_documentation tool will not function properly.

Installation

Configure the MCP server in your MCP client configuration (e.g., for Amazon Q Developer CLI, edit ~/.aws/amazonq/mcp.json):

{
  "mcpServers": {
    "opentelemetry-documentation-mcp-server": {
      "command": "uvx",
      "args": ["git+https://github.com/ryu1maniwa/opentelemetry-documentation-mcp-server"],
      "env": {
        "FASTMCP_LOG_LEVEL": "ERROR",
        "GOOGLE_API_KEY": "YOUR_GOOGLE_API_KEY"
      },
      "disabled": false,
      "autoApprove": []
    }
  }
}

or docker after a successful docker build -t opentelemetry-documentation-mcp-server .:

{
  "mcpServers": {
    "opentelemetry-documentation-mcp-server": {
      "command": "docker",
      "args": [
        "run",
        "--rm",
        "--interactive",
        "--env",
        "FASTMCP_LOG_LEVEL=ERROR",
        "--env",
        "GOOGLE_API_KEY=YOUR_GOOGLE_API_KEY",
        "opentelemetry-documentation-mcp-server:latest"
      ],
      "env": {},
      "disabled": false,
      "autoApprove": []
    }
  }
}

Basic Usage

Example:

• "look up documentation on OpenTelemetry tracing concepts. cite your sources"
• "search OpenTelemetry documentation for information about metrics and instrumentation"
• "find documentation about OpenTelemetry SDK configuration"

Tools

read_documentation

Fetches a OpenTelemetry documentation page and converts it to markdown format.

read_documentation(url: str) -> str

search_documentation

Searches OpenTelemetry documentation using Google Custom Search.

search_documentation(search_phrase: str, limit: int) -> list[dict]

Google Custom Search Integration

This server uses Google Custom Search to provide search functionality for OpenTelemetry documentation. The Custom Search Engine ID (cx) used is the one used by opentelemetry.io itself:

• Custom Search Engine ID: 015faf7de29c34606

API Limits

The Google Custom Search API has the following limits:

• Free tier: 100 queries per day
• $5 per 1000 queries after that
• Maximum of 10 results per query