> ## Documentation Index
> Fetch the complete documentation index at: https://docs.langtrace.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# SigNoz

> Langtrace and SigNoz Integration Guide.

## Overview

SigNoz is an open-source observability platform that helps developers monitor their applications and troubleshoot issues. It provides a rich set of features for monitoring and analyzing traces, metrics, and logs.

<img src="https://mintcdn.com/langtraceai-2/-UwpI0EgGcwfnnlh/images/signoz/trace-details.png?fit=max&auto=format&n=-UwpI0EgGcwfnnlh&q=85&s=7c7d80078be79d5a1e7da39d43f5514a" alt="SigNoz Trace Details" width="1519" height="855" data-path="images/signoz/trace-details.png" />

## Environment Variables

Set up the following environment variables to enable OpenTelemetry tracing and send traces to SigNoz:

```bash theme={null}
OTEL_EXPORTER_OTLP_ENDPOINT="https://ingest.us.signoz.cloud:443"
OTEL_EXPORTER_OTLP_HEADERS="signoz-access-token=<token>"
OTEL_RESOURCE_ATTRIBUTES=service.name="rag chatbot"
OTEL_EXPORTER_OTLP_PROTOCOL="grpc"
```

<Note>
  For the `OTEL_EXPORTER_OTLP_PROTOCOL`, both `grpc` and `http` protocols are
  supported. Choose the one that best fits your infrastructure setup.
</Note>

## Troubleshooting

* **No traces visible**: Verify your SigNoz endpoint and token are correct
* **Missing spans**: Ensure Langtrace is properly initialized before any LLM operations
* **Connection issues**: Check if your OTLP endpoint is accessible from your application

That's it! ✨ 🧙‍♂️ Enjoy the high cardinality traces on SigNoz.