mcp-demo-server-otel

Demonstration of a Remote MCP server instrumented with OpenTelemetry tracing and sending traces to Datadog. This provides a single connected trace from MCP server through to any backend APIs or databases giving you a complete understanding of your MCP server availability.

Features:

• Bundles a lightweight OpenTelemetry collector using rotel
• Scripts that deploy to Render
• Pushes trace spans to Datadog (using early experimental rotel trace support)
• Pulls the latest weather forecast from a configurable backend API

Deploying to Render

1. Clone repo
2. Setup a new webservice in Render using the repo fork
3. Set the following Render properties:
   • Build script: ./scripts/render-build.sh
   • Run script: ./scripts/render-start.sh
4. Set the following environment variables:
   • DATADOG_API_KEY: Your Datadog API key
   • DATADOG_REGION: defaults to us1, options: us3, us5, eu, ap1
   • WEATHER_API: API endpoint of an API returning weather forecast given a zipcode
5. Deploy!

You can use the MCP Inspector to connect to your new MCP Server's endpoint for testing.

TODO

This application does not include authentication/authorization support, so make sure to adjust to your particular needs. Cloudflare has discussed their recent approach for how to use an OAuth flow for MCP.

Developing

This project uses uv, to get started use uv sync to install dependencies.