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Add otel-desktop-viewer to telemetry docs

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Lightweight single-binary alternative to Jaeger for local development.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
Chris Guidry 2026-01-13 17:00:03 -05:00
commit 88182d2dae
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23
docs/servers/telemetry.mdx
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@ -159,9 +159,28 @@ def greet(name: str) -> str:
The SDK must be configured **before** importing FastMCP to ensure the tracer provider is set when FastMCP initializes.
</Tip>
### Local Development with Jaeger
### Local Development
For local trace visualization, run Jaeger:
For quick local trace visualization, [otel-desktop-viewer](https://github.com/CtrlSpice/otel-desktop-viewer) is a lightweight single-binary tool:
```bash
# macOS
brew install nico-barbas/brew/otel-desktop-viewer
# Or download from GitHub releases
```
Run it alongside your server:
```bash
# Terminal 1: Start the viewer (UI at http://localhost:8000, OTLP on :4317)
otel-desktop-viewer
# Terminal 2: Run your server with tracing
opentelemetry-instrument fastmcp run server.py
```
For more features, use [Jaeger](https://www.jaegertracing.io/):
```bash
docker run -d --name jaeger \