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

# LLM Observability with Tencent APM and OpenLLMetry

[Tencent APM](https://console.tencentcloud.com/apm), also known as `TAPM`, is a monitoring and observability platform that provides a comprehensive view of your application's performance and behavior.

Tencent APM natively supports OpenTelemetry, so you can use OpenLLMetry to trace your applications.

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  <img src="https://mintcdn.com/enrolla/GnqeYuB5cchQKSek/img/integrations/tencent.png?fit=max&auto=format&n=GnqeYuB5cchQKSek&q=85&s=bce312dcae554692a83799b54ef5bace" width="3454" height="1986" data-path="img/integrations/tencent.png" />
</Frame>

To integrate OpenLLMetry with Tencent APM, you'll need to configure your tracing endpoint and authentication:

```bash theme={null}
TRACELOOP_BASE_URL="<TAPM_ENDPOINT>" # Use port `55681` rather than `4317` as the default port.
TRACELOOP_HEADERS="Authorization=Bearer%20<TAPM_TOKEN>" # header values in env variables must be URL‑encoded.
```

Tencent APM defaults to using port `4317` for the gRPC exporter, and we recommend using port `55681` instead here, which is the HTTP exporter port.